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- Title
- PROJECT REVIEW MATURITY AND PROJECT PERFORMANCE: AN EMPIRICAL CASE STUDY.
- Creator
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Vergopia, Catherine, Kotnour, Timothy, University of Central Florida
- Abstract / Description
-
Many organizations use project management maturity models to improve their project performance. These systematic and sequential frameworks are designed to help organizations quantify their project management maturity and improve their project management processes. However, these models rarely put enough emphasis on project reviews as tools to improve project performance, because, too often, project reviews are considered as non-productive administrative processes. The lack of emphasis on...
Show moreMany organizations use project management maturity models to improve their project performance. These systematic and sequential frameworks are designed to help organizations quantify their project management maturity and improve their project management processes. However, these models rarely put enough emphasis on project reviews as tools to improve project performance, because, too often, project reviews are considered as non-productive administrative processes. The lack of emphasis on project reviews in project management maturity models is also illustrated by the limited amount of research published on the relationship between project reviews and project performance. Based on the concept of project management maturity models, this dissertation presents a project review maturity model used to measure the project review maturity for four (4) types of reviews (routine, gate, post-mortem, and focused-learning) as well as the overall project review maturity. In addition, this research establishes the quantitative relationship between project review maturity and project performance. This dissertation also quantifies the concept of project review performance and its relationship with project performance for all four (4) types of reviews, as well as for the overall project review performance. Finally, this research provides enablers, barriers, and best practices for effective reviews, based on the answers of written interview questions, and observations from a post-mortem review meeting at a highly-technical organization. The empirical case study and survey analysis conducted by this dissertation led to some unique findings. Five (5) specific conclusions were developed: •Organizations use all types of reviews in their project management procedures, and view each review role differently. •Some reviews are more related than others to project performance, although generally, review maturity and performance are significantly relevant to project performance. •Organization culture (beliefs, expected actions, etc.) is not significantly relevant to project team members when assessing project status or PM procedures during project life-cycle. •Post-mortem and focused-learning reviews are linked with higher levels of learning than routine and gate reviews. •Effective reviews need managerial support. This research is the first of its kind to show significant positive relationships between project review maturity and performance with project performance and to provide quantifiable results for organizations to further improve their review processes.
Show less - Date Issued
- 2008
- Identifier
- CFE0002401, ucf:47743
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002401
- Title
- DEVELOPMENT OF A KNOWLEDGE MANAGEMENT MODEL IN LARGE-SCALE INTERNATIONAL SPACE SCIENCE PROJECTS.
- Creator
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Nunez, Jose, Kotnour, Timothy, University of Central Florida
- Abstract / Description
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Large-scale international science projects (LISPs) are those projects where two or more countries formally agree to cooperate toward the achievement of a scientific, research and development, or engineering goal. In general, only projects exceeding $1 billion U.S. are considered LISPs, so sheer size commands attention, and because they are so costly and visible, failure can lead to significant scientific, financial and political consequences. This researched focused on how 7 different...
Show moreLarge-scale international science projects (LISPs) are those projects where two or more countries formally agree to cooperate toward the achievement of a scientific, research and development, or engineering goal. In general, only projects exceeding $1 billion U.S. are considered LISPs, so sheer size commands attention, and because they are so costly and visible, failure can lead to significant scientific, financial and political consequences. This researched focused on how 7 different critical success factors impacted the level of technical interface knowledge shared among international partners involved in a large-scale international space science project (LISSP) – the International Space Station (ISS), which is currently under assembly and testing at the Kennedy Space Center, Florida. The research methodology employed documentation review, individual interviews and surveys of experienced engineers and managers from three different countries associated with the ISS. The research methodology was applied to three different cases (retrospectively) involving the processing of flight hardware from the three different international partners. The analysis showed that only 5 out of the 7-factor model played a significant role in the level of knowledge sharing between partners. The developed model provides future international partnerships with critical success factors that they can apply to their specific project / mission teams in order to improve the level of knowledge shared between them.
Show less - Date Issued
- 2005
- Identifier
- CFE0000656, ucf:46501
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000656
- Title
- RESPONSES OF THE FLORIDA MOUSE (PODOMYS FLORIDANUS) TO HABITAT MANAGEMENT.
- Creator
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DePue, Jason, Stout, Jack, University of Central Florida
- Abstract / Description
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The Florida mouse (Podomys floridanus), a species restricted to the Lake Wales Ridge and the Atlantic Coastal Ridge, is recognized by the Florida Fish and Wildlife Conservation Commission as a species of special concern, highlighting its status as a species that is threatened by habitat loss statewide. Publicly owned lands offer protection for the species, but management is generally focused on protecting biodiversity in general and not a particular species. The response of the Florida mouse...
Show moreThe Florida mouse (Podomys floridanus), a species restricted to the Lake Wales Ridge and the Atlantic Coastal Ridge, is recognized by the Florida Fish and Wildlife Conservation Commission as a species of special concern, highlighting its status as a species that is threatened by habitat loss statewide. Publicly owned lands offer protection for the species, but management is generally focused on protecting biodiversity in general and not a particular species. The response of the Florida mouse to land management practices such as mechanical treatment and prescribed fires is poorly documented. This research examined the population responses of Florida mice on three public lands in central Florida, namely, Bullfrog Creek Mitigation Park in Hillsborough County, Split Oak Mitigation Park in Orange County, and Chuluota Wilderness in Seminole County. Florida mice numbers increased or recovered to pre-burn levels within six months following prescribed burns in 2003 and 2004 on the Bullfrog Creek site. Florida mice dropped in numbers following a fire on the Split Oak site, but were increasing when the study ended. The steady decrease in numbers of mice at the Chuluota Wilderness site remained unaffected by habitat modification. Management of public lands that support Florida mice should continue to utilize prescribed fire to maintain upland habitats. When possible, prescribed fires should be limited to the spring and early summer months and applied to only a portion of the total available area in any year.
Show less - Date Issued
- 2005
- Identifier
- CFE0000774, ucf:46564
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000774
- Title
- FACTORS AFFECTING THE PRACTICES OF ISO 9001:2000 QUALITY MANAGEMENT SYSTEM IN SAUDI BUSINESS ORGANIZATIONS.
- Creator
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Al-Asiri, Mohammad Mesaad, Elshennawy, Ahamd, University of Central Florida
- Abstract / Description
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Since it's release in Dec 2000, there has been a slow movement towards the new version of ISO 9001:2000 by ISO 9000:1994 certified organizations. Of the 561,747 ISO 9000 certified businesses, 167,210 are certified under the new ISO 9001:2000, which is less than 30 % of the total ISO 9000 certified companies. Although many studies have been conducted to understand and assess the practices of ISO 9000:1994 standards, no research has been done to investigate the practices of ISO 9001:2000 in...
Show moreSince it's release in Dec 2000, there has been a slow movement towards the new version of ISO 9001:2000 by ISO 9000:1994 certified organizations. Of the 561,747 ISO 9000 certified businesses, 167,210 are certified under the new ISO 9001:2000, which is less than 30 % of the total ISO 9000 certified companies. Although many studies have been conducted to understand and assess the practices of ISO 9000:1994 standards, no research has been done to investigate the practices of ISO 9001:2000 in Saudi Arabia. This study is designed to investigate the implementation practices of the new ISO 9001:2000 standard in Saudi business organizations. The main objectives of this study are to identify the critical factors that lead to successful implementation of the new standard, to determine what barriers have been encountered during implementation, and to identify the most difficult parts of the standard to comply with. It investigates the perceived benefits that Saudi firms have gained from implementing the system and examines the level of knowledge about ISO 9001:2000 and the perceptions of the new standard among the management teams and staff of ISO registered firms. It determines the level of integration between ISO 9001:2000 and other implemented systems. Furthermore, this study aims to investigate the factors that may explain the Saudi organizations' decisions to implement ISO 9001:2000 in their businesses. To accomplish these research objectives, a questionnaire was developed based on an extensive review of related literature and tested for validity and reliability.The target sample for the study was made up of all ISO 9001:2000 registered sites in Saudi Arabia up to 31 Dec. 2002, which comprised 131 organizations. A total of 89 completed surveys were received, for a response rate of 72%. Descriptive statistics, measurement of variation, and association, and factor analysis were used in the interpretation of collected data.
Show less - Date Issued
- 2004
- Identifier
- CFE0000137, ucf:46194
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000137
- Title
- WATER SANITATION AND WASTE MANAGEMENT IN LATIN AMERICA, COLOMBIA, AND CARTAGENA: A STUDY OF THE RELATIONSHIP BETWEEN ENVIRONMENT, HEALTH, POVERTY, AND POLICY.
- Creator
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Sullivan, Andrea K, Sadri, Houman A., Bledsoe, Robert, University of Central Florida
- Abstract / Description
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The objective of this research is to identify the need for stricter environmental standards and regulations in three areas of study. Organized by their level of analysis, these areas are Latin America (at the System-Level-of Analysis), Colombia (at the State-Level-of-Analysis), and the city of Cartagena (at the Sub-National-Level of Analysis). This research was accomplished in two phases. The first involved conducting an exhaustive literature search of sources, germane to the objective,...
Show moreThe objective of this research is to identify the need for stricter environmental standards and regulations in three areas of study. Organized by their level of analysis, these areas are Latin America (at the System-Level-of Analysis), Colombia (at the State-Level-of-Analysis), and the city of Cartagena (at the Sub-National-Level of Analysis). This research was accomplished in two phases. The first involved conducting an exhaustive literature search of sources, germane to the objective, published in Spanish and English. The second featured a site inspection conducted over a 10-day period during the month of May 2016 to Cartagena, Colombia. The purpose of the site inspection was to interview locals and to photographically document waste disposal practices. The results of this research determined that government at all levels (system, state, and subnational) play a significant and sometimes determinant role in managing waste and water pollution that are responsible for health problems primarily among the poor; these health problems are discussed in detail. This research discovered that the lack of government intervention is responsible for reducing the efficacy of waste management and water sanitation services. This research concludes with a discussion of how proactive waste management and water sanitation policies and practices can have a significant benefit not only to improving health but also has significant economic, social and environmental benefits that may reach beyond local levels.
Show less - Date Issued
- 2016
- Identifier
- CFH2000150, ucf:45936
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH2000150
- Title
- A COMPARTIVE ANALYSIS OF THE EVOLUTION OF FOREST MANAGEMENT IN THE UNITED STATES IN GENERAL, WITH A FOCUS ON OREGON, NORTH CAROLINA AND FLORIDA.
- Creator
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kelly , patrick, Kiel, Dwight, University of Central Florida
- Abstract / Description
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ABSTRACT The purpose of this paper is to evaluate and discuss the evolution of forest management practices in the United States. The paper discusses the trends in forest management that have occurred within the United States in general, and specifically within the western (Oregon) and southern (North Carolina and Florida) United States. The trends discussed include the three (3) to four (4) epochs of management and use that are generally accepted within the forest management literature, with...
Show moreABSTRACT The purpose of this paper is to evaluate and discuss the evolution of forest management practices in the United States. The paper discusses the trends in forest management that have occurred within the United States in general, and specifically within the western (Oregon) and southern (North Carolina and Florida) United States. The trends discussed include the three (3) to four (4) epochs of management and use that are generally accepted within the forest management literature, with the exception of North Carolina that is in the process of a fifth (5). The comparative analysis within the paper discusses the western model of management which tends to be distinctly different from the southern model in terms of regulatory approaches. The western model (i.e. Oregon) tends to be highly regulated, while the southern model is primarily voluntary, and quasi-regulatory in terms of using alternative mechanisms of regulation (i.e. Best Management Practices that regulate water quality). The paper also discusses the role of professionalism within the various forest services in each state, although the regulatory mechanism is the most important explanatory variable. In general, each state's forest services tend to be highly professional with licensing requirements, educational services and cooperative management. The two models are also distinctly different in terms of ownership, with Oregon being owned (nearly 50%) by the public, whereas the southern states are dominated by Nonindustrial Private Forest Owners (NIPF).
Show less - Date Issued
- 2006
- Identifier
- CFE0001074, ucf:46770
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001074
- Title
- AN ASSESSMENT OF ALIGNMENT BETWEEN PROJECT COMPLEXITY AND PROJECT MANAGEMENT STYLE.
- Creator
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Camci, Alper, Kotnour, Timothy, University of Central Florida
- Abstract / Description
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The main drivers for this research are the complexities associated with the project management and an organization's project management style in dealing with these complexities. This research aims to demonstrate that alignment between project complexity and project management style increases project performance and decreases project issues, and also, with increased project issues, project performance deteriorates. In order to test these claims, this research developed measures for...
Show moreThe main drivers for this research are the complexities associated with the project management and an organization's project management style in dealing with these complexities. This research aims to demonstrate that alignment between project complexity and project management style increases project performance and decreases project issues, and also, with increased project issues, project performance deteriorates. In order to test these claims, this research developed measures for assessing project complexity, project management styles and project issues by employing a survey of project management professionals. The measure for project complexity is based on a taxonomy with four categories: organizational complexity, product complexity, methods (process) complexity and goal complexity. Project management style is defined as the management paradigm that guides the managers of an organization in perceiving and dealing with management problems. The measure for project nagement style is based on the plan-do-study-act (PDSA) cycle and the Newtonian and complexity paradigms. Also the measures for project issues are developed after an extensive content analysis on the literature on project issues, risks and success factors. A self-administered survey instrument (paper-based and on-line) with 40 questions (seven point Likert scale) was utilized. The respondents were the project management professionals from different industries in the Central Florida region. Each respondent was asked to answer questions for two different kinds of projects: a successful project and a challenged project. Based on the data collected by the survey instrument, the results of confirmatory and exploratory factor analyses provide strong evidence that the final measures for project technology complexity, project management styles, project issues and project performance have adequate validity and reliability. Results of the hypothesis tests demonstrate that increased alignment of project complexity and project management style leads to increased project performance and decreased project issues, and also increased project issues leads to project decreased performance. From the perspective of project management, the results of this study have illustrated the importance of aligning a project's complexity and management style. These results suggest that project or program managers can improve the performance of their projects by any attempt to increase the alignment between project complexity and project management style. Project management professionals and theoreticians can use the methodologies provided in this dissertation to assess project complexity, project management style and alignment.
Show less - Date Issued
- 2006
- Identifier
- CFE0001195, ucf:46853
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001195
- Title
- A COMPARISON OF STUDENT PERCEPTIONS OF LEARNING IN THEIR CO-OP AND INTERNSHIP EXPERIENCES AND THE CLASSROOM ENVIRONMENT: A STUDY OF HOSPITALITY MANAGEMENT STUDENTS.
- Creator
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Lee, Scott, Tubbs, LeVester, University of Central Florida
- Abstract / Description
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This study analyzed hospitality management student perceptions of learning both inside the classroom environment and student perceptions of learning in their experiential learning assignments outside the classroom. There were 681 students attending the Rosen College of Hospitality Management at the University of Central Florida who participated in this study. A modified version of the Predicting Learner Advancement through Cooperative Education (P.L.A.C.E.) instrument was used in order to...
Show moreThis study analyzed hospitality management student perceptions of learning both inside the classroom environment and student perceptions of learning in their experiential learning assignments outside the classroom. There were 681 students attending the Rosen College of Hospitality Management at the University of Central Florida who participated in this study. A modified version of the Predicting Learner Advancement through Cooperative Education (P.L.A.C.E.) instrument was used in order to collect data for the study. The P.L.A.C.E. instrument was developed to be a standardized instrument measuring pre-graduation learning outcomes in the following four areas: (a) career development, (b) academic functions achievement, (c) work skills development, and (d) personal growth/development (Parks et al., 2001). This study attempted to add to the literature regarding learning outcomes by contrasting learning in the classroom environment and cooperative education learning assignments. Many leading hospitality curriculums currently incorporate an experiential learning component into their curriculums. Some of the documented benefits of experiential learning or cooperative education programs include: (a) improved student self confidence, self-concept, and improved social skills (Gillan, Davies, & Beissel, 1984). (b) increased practical knowledge and skills (Williams et al. (1993), and (c) enhanced employment opportunities (Clark, 1994; Sharma, Mannel & Rowe, 1995). This study confirmed all of these previously documented benefits of experiential learning, and identified new learning outcomes or benefits for students who participate in experiential learning, such as an increased understanding of how organizations function, increased ability to view career expectations realistically, an increased network of professional contacts, increased ability to take initiative, increased ability to adapt to change, increased leadership skills and increased financial management skills. Unlike many other studies, this study investigated student perceptions of learning in both their classroom environments and their experiential learning assignments at the same time. This allowed the researcher a unique opportunity to compare and contrast each learning environment and identify specific benefits for each.
Show less - Date Issued
- 2006
- Identifier
- CFE0001284, ucf:46911
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001284
- Title
- PROFIT-BEARING ADMINISTRATORS: EXPLORING THE APPLICATION OF ECONOMICS AND FINANCIAL CONCEPTS IN HEALTHCARE MANAGEMENT.
- Creator
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Riddick, Brandon K, Wessel, Philip K., University of Central Florida
- Abstract / Description
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Healthcare managers face an incredible challenge today; understanding and implementing financially and economically sound decisions in the complex healthcare environment of the United States. The pressure to be profitable managers is greater than ever. Considering current research, past studies, and articles focused on the demands of healthcare managers will illuminate the state of health care administration, and the importance of real world application of accounting and economics in...
Show moreHealthcare managers face an incredible challenge today; understanding and implementing financially and economically sound decisions in the complex healthcare environment of the United States. The pressure to be profitable managers is greater than ever. Considering current research, past studies, and articles focused on the demands of healthcare managers will illuminate the state of health care administration, and the importance of real world application of accounting and economics in healthcare. This thesis will explore and examine research about industry standards, and the need for preparedness in healthcare finance management. It will also examine the important and complex role of accounting and economics in healthcare administration by answering the three following questions: What do administrators, according to studies and literature available, believe is essential to becoming and remaining effective managers? What financial and economic concepts are understood and implemented by healthcare managers? What changes, if any, are necessary to adequately train and educate future healthcare administrators for successful financial management? The answers to these questions will highlight the impact of the economic, political, and social changes on administrators, as well as the best ways to succeed despite the difficulties often faced by those in this field.
Show less - Date Issued
- 2017
- Identifier
- CFH2000212, ucf:45922
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH2000212
- Title
- A REAL OPTION STRATEGIC SCORECARD DECISION FRAMEWORK FOR IT PROJECT SELECTION.
- Creator
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Munoz, Cesar, Rabelo, Luis, University of Central Florida
- Abstract / Description
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ABSTRACT The problem of project selection is of significant importance in management of information systems. Almost $2 trillion is spent worldwide every year on IT projects, with over $600 billion spent in the US alone. Traditionally, managers have being using the classical net present value (NPV) method in conjunction with multicriteria scoring models for ROI analysis and selection of IT project investments The multicriteria models use ad-hoc evaluation criteria to assign priority weights...
Show moreABSTRACT The problem of project selection is of significant importance in management of information systems. Almost $2 trillion is spent worldwide every year on IT projects, with over $600 billion spent in the US alone. Traditionally, managers have being using the classical net present value (NPV) method in conjunction with multicriteria scoring models for ROI analysis and selection of IT project investments The multicriteria models use ad-hoc evaluation criteria to assign priority weights and then rate the alternatives against each criterion. These models have two limitations. First, the criteria and weights are based on subjective judgments, allowing the introduction of politics in the information management decision process and the generation of arbitrary results. Second, the classical approach uses deterministic estimations of the cost, benefits and the returns of the projects, without considering the impact of uncertainty and risk in the business decisions. This research proposed a better alternative for ROI analysis and selection of IT projects using a real option strategic scorecard (ROSS) approach. In contrast with traditional methodologies and previous research work, the ROSS decision framework uses a more comprehensive, axiomatic approach for systematically measuring both the business value and the strategic implications of IT project investments. The ROSS approach integrates in a unified IT project management decision framework the best elements of real option theory, strategic balanced scorecards, Monte Carlo simulations and analytical network processes to fully analyzes the effect of uncertainty and risk in the IT investment decisions. In addition, the ROSS approach complies with the critical success factors that have being identified in the literature for validation of IT decision frameworks. The main benefit of the ROSS approach is to enable managers to better compare and rank projects in the IT portfolio, optimizing the ROI analysis and selection of information system projects.
Show less - Date Issued
- 2006
- Identifier
- CFE0001331, ucf:46975
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001331
- Title
- WOMEN'S PERCEPTIONS OF NURSING CARE AND MANAGEMENT AFTER FIRST TRIMESTER MISCARRIAGE.
- Creator
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McGee, Jennifer, D'Amato-Kubiet, Leslee, University of Central Florida
- Abstract / Description
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Spontaneous abortion, or miscarriage, is an event that affects approximately one in four women during their reproductive years. Despite the psychological and physiological trauma associated with the loss of pregnancy, few evidence-based practice recommendations exist to guide nursing care of women experiencing first trimester miscarriage. The purpose of this integrative review of literature was to examine research related to women's health care experiences of first trimester miscarriage and...
Show moreSpontaneous abortion, or miscarriage, is an event that affects approximately one in four women during their reproductive years. Despite the psychological and physiological trauma associated with the loss of pregnancy, few evidence-based practice recommendations exist to guide nursing care of women experiencing first trimester miscarriage. The purpose of this integrative review of literature was to examine research related to women's health care experiences of first trimester miscarriage and discuss common themes relating to nursing care. Inclusion criteria consisted of peer review research articles published after 2001 and available in the English language and women that experienced miscarriage during the first 12 weeks of pregnancy. Current literature was collected from Cumulative Index of Nursing and Allied Health Literature (CINAHL), MEDLINE- EBSCOhost and PsycINFO databases using combinations of various key words. Six qualitative studies and one quasi-experimental study met the inclusion criteria and were reviewed. The results indicated that nursing care of women experiencing miscarriage should include therapeutic communication, psychological support, and provision of information and follow-up care. While there is little research reviewing nursing interventions related to first trimester miscarriage, these themes may help guide the development of further research reviewing the efficacy and effectiveness of specific nursing interventions.
Show less - Date Issued
- 2013
- Identifier
- CFH0004414, ucf:45134
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004414
- Title
- THE EFFECT OF GENDER AND LEADERSHIP STYLES ON EMPLOYEE SATISFACTION.
- Creator
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Williams, Brittany, Ciuchta, Michael, University of Central Florida
- Abstract / Description
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To ensure the success of a company, it is essential for supervisors to interact effectively with the employees they oversee. Effective interactions between supervisor and employee go hand-in-hand with employee satisfaction, which can impact firm performance. The purpose of this thesis is to examine key drivers of employee satisfaction. Specifically, this thesis tests whether or not employees with supervisors of the same sex as themselves are more satisfied than employees with supervisors of...
Show moreTo ensure the success of a company, it is essential for supervisors to interact effectively with the employees they oversee. Effective interactions between supervisor and employee go hand-in-hand with employee satisfaction, which can impact firm performance. The purpose of this thesis is to examine key drivers of employee satisfaction. Specifically, this thesis tests whether or not employees with supervisors of the same sex as themselves are more satisfied than employees with supervisors of the opposite sex. It also compares and contrasts the level of satisfaction an employee has in correspondence with transformational and transactional leadership styles and whether this relationship is contingent on the employee's level of work experience.
Show less - Date Issued
- 2012
- Identifier
- CFH0004285, ucf:44968
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004285
- Title
- A COMPARISON OF TRADITIONAL AND NONTRADITIONAL COLLEGE STUDENTS' STRESS AND ITS RELATIONSHIP TO THEIR TIME MANAGEMENT AND OVERALL PSYCHOLOGICAL ADJUSTMENT.
- Creator
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Stagman, Debra, Mottarella, Karen, University of Central Florida
- Abstract / Description
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The academic demands of college can be strenuous. Nontraditional students in particular may be at risk for role conflict and overload. This study examines levels of academic stressors and reactions to stressors between traditional and nontraditional undergraduate college students in order to investigate the relationships between academic stress, time management behaviors and overall psychological adjustment between the two groups. Participants completed Gadzella's (1991) Student-Life Stress...
Show moreThe academic demands of college can be strenuous. Nontraditional students in particular may be at risk for role conflict and overload. This study examines levels of academic stressors and reactions to stressors between traditional and nontraditional undergraduate college students in order to investigate the relationships between academic stress, time management behaviors and overall psychological adjustment between the two groups. Participants completed Gadzella's (1991) Student-Life Stress Inventory, Time Management Behaviors Scale (Macan, Shahani, Dipboye, & Phillips, 1990) and the Symptom Checklist-90 Revised (Derogatis, 1994). Results reveal significant differences between traditional and nontraditional students on a subscale of the Time Management Behavior Scale measuring the ability to set goals and prioritize. Additionally, a marginally significant difference between traditional and nontraditional students was found on another subscale of the Time Management Behavior Scale measuring the mechanics of time management. These results indicate students who maintain multiple life-roles and responsibilities in addition to their role of college student are better at identifying and setting goals that need to be accomplished and prioritizing the tasks required to meet these goals. Furthermore, these students may be more adept at the mechanics involved with time management such as making list and scheduling activities in advance.
Show less - Date Issued
- 2011
- Identifier
- CFH0003818, ucf:44729
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0003818
- Title
- UNDERSTANDING THE ROLE OF SOCIAL CAPITAL IN EXPERTISE COORDINATION IN INFORMATION SYSTEMS DEVELOPMENT (ISD) TEAMS.
- Creator
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Hsu, Shih-Chieh, Jiang, James, University of Central Florida
- Abstract / Description
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Information system development (ISD) project is a knowledge-intensive teamwork process which requires members to coordinate their expertise to generate the final outcome. Breakdown or coordination and insufficient knowledge integration have been reported as critical factors which lead to ISD project failure. Most existing coordination literature focus on the effect of administrative coordination mechanisms toward project performance which hints that more efforts are needed to understand...
Show moreInformation system development (ISD) project is a knowledge-intensive teamwork process which requires members to coordinate their expertise to generate the final outcome. Breakdown or coordination and insufficient knowledge integration have been reported as critical factors which lead to ISD project failure. Most existing coordination literature focus on the effect of administrative coordination mechanisms toward project performance which hints that more efforts are needed to understand expertise coordination and explore ways to improve it. Addressing the above issues, two studies in this dissertation attempt to understand expertise coordination within the IS development team based on social capital perspective. The first study, based on intention-behavior literature, knowledge management research, and Gerwin's (2004) coordination model, investigates relationships among willingness, competence, and actual expertise coordination. The relationships between expertise coordination and teamwork outcomes are also examined. The second study incorporates social capital theory and examines (1) dependencies among three dimensions of social capital and (2) linkage between social capital and expertise coordination. Data collected from more than five hundred information systems project team members was used to test the proposed hypotheses. The analysis results confirmed most of the hypotheses. This dissertation contributes to coordination, project management, and team mental model research through many perspectives. In each study, directions for management practice and future research are discussed.
Show less - Date Issued
- 2008
- Identifier
- CFE0002347, ucf:47816
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002347
- Title
- STRENGTHS AND TALENTS OF POTENTIAL ADMINISTRATORS IN ORANGE COUNTY PUBLIC SCHOOLS, FLORIDA.
- Creator
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Anderson, Arthur, Taylor, Rosemarye, University of Central Florida
- Abstract / Description
-
With the increased demands on principals and a shortage of qualified, acceptable candidates, school districts that have to replace principals are in a difficult position. These factors, combined with the importance that the principal role has in relation to student achievement, make the identification of potential administrators and the hiring process for new administrators a top priority for all school districts. This study answered the following two major questions; a) what characteristics...
Show moreWith the increased demands on principals and a shortage of qualified, acceptable candidates, school districts that have to replace principals are in a difficult position. These factors, combined with the importance that the principal role has in relation to student achievement, make the identification of potential administrators and the hiring process for new administrators a top priority for all school districts. This study answered the following two major questions; a) what characteristics or talents, as identified by the StrengthsFinder profile, did Orange County Public School principals in 2007 look for in identifying potential school administrators and b) what differences, if any, exist within the existing variables (school level, certification, gender, and prior experiences). The Clifton StrengthsFinder Profile was utilized to identify the strengths or talents of a group of 61 teachers within Orange County Public Schools (OCPS) who were identified by their principals as potential school based administrators. Of those 61 participants in the Aspiring Leader Academy, the following five strengths were most commonly identified: a) Relator (45.9%), b) Achiever (37.8%), c) Responsibility (37.7%), d) Learner (36.1%) and e) Maximizer (25.9%). In comparing talents across demographic data, the talents identified for participants at all levels (elementary, middle, and high) were not statistically different, supporting the notion that talents principals looked for in identifying potential administrators were relatively the same at all three levels.
Show less - Date Issued
- 2008
- Identifier
- CFE0002412, ucf:47768
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002412
- Title
- Developing new power management and High-Reliability Schemes in Data-Intensive Environment.
- Creator
-
Wang, Ruijun, Wang, Jun, Jin, Yier, DeMara, Ronald, Zhang, Shaojie, Ni, Liqiang, University of Central Florida
- Abstract / Description
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With the increasing popularity of data-intensive applications as well as the large-scale computingand storage systems, current data centers and supercomputers are often dealing with extremelylarge data-sets. To store and process this huge amount of data reliably and energy-efficiently,three major challenges should be taken into consideration for the system designers. Firstly, power conservation(-)Multicore processors or CMPs have become a mainstream in the current processormarket because of...
Show moreWith the increasing popularity of data-intensive applications as well as the large-scale computingand storage systems, current data centers and supercomputers are often dealing with extremelylarge data-sets. To store and process this huge amount of data reliably and energy-efficiently,three major challenges should be taken into consideration for the system designers. Firstly, power conservation(-)Multicore processors or CMPs have become a mainstream in the current processormarket because of the tremendous improvement in transistor density and the advancement in semiconductor technology. However, the increasing number of transistors on a single die or chip reveals a super-linear growth in power consumption [4]. Thus, how to balance system performance andpower-saving is a critical issue which needs to be solved effectively. Secondly, system reliability(-)Reliability is a critical metric in the design and development of replication-based big data storagesystems such as Hadoop File System (HDFS). In the system with thousands machines and storagedevices, even in-frequent failures become likely. In Google File System, the annual disk failurerate is 2:88%,which means you were expected to see 8,760 disk failures in a year. Unfortunately,given an increasing number of node failures, how often a cluster starts losing data when beingscaled out is not well investigated. Thirdly, energy efficiency(-)The fast processing speeds of the current generation of supercomputers provide a great convenience to scientists dealing with extremely large data sets. The next generation of (")exascale(") supercomputers could provide accuratesimulation results for the automobile industry, aerospace industry, and even nuclear fusion reactors for the very first time. However, the energy cost of super-computing is extremely high, with a total electricity bill of 9 million dollars per year. Thus, conserving energy and increasing the energy efficiency of supercomputers has become critical in recent years.This dissertation proposes new solutions to address the above three key challenges for currentlarge-scale storage and computing systems. Firstly, we propose a novel power management scheme called MAR (model-free, adaptive, rule-based) in multiprocessor systems to minimize the CPU power consumption subject to performance constraints. By introducing new I/O wait status, MAR is able to accurately describe the relationship between core frequencies, performance and power consumption. Moreover, we adopt a model-free control method to filter out the I/O wait status from the traditional CPU busy/idle model in order to achieve fast responsiveness to burst situations and take full advantage of power saving. Our extensive experiments on a physical testbed demonstrate that, for SPEC benchmarks and data-intensive (TPC-C) benchmarks, an MAR prototype system achieves 95.8-97.8% accuracy of the ideal power saving strategy calculated offline. Compared with baseline solutions, MAR is able to save 12.3-16.1% more power while maintain a comparable performance loss of about 0.78-1.08%. In addition, more simulation results indicate that our design achieved 3.35-14.2% more power saving efficiency and 4.2-10.7% less performance loss under various CMP configurations as compared with various baseline approaches such as LAST, Relax,PID and MPC.Secondly, we create a new reliability model by incorporating the probability of replica loss toinvestigate the system reliability of multi-way declustering data layouts and analyze their potential parallel recovery possibilities. Our comprehensive simulation results on Matlab and SHARPE show that the shifted declustering data layout outperforms the random declustering layout in a multi-way replication scale-out architecture, in terms of data loss probability and system reliability by upto 63% and 85% respectively. Our study on both 5-year and 10-year system reliability equipped with various recovery bandwidth settings shows that, the shifted declustering layout surpasses the two baseline approaches in both cases by consuming up to 79 % and 87% less recovery bandwidth for copyset, as well as 4.8% and 10.2% less recovery bandwidth for random layout.Thirdly, we develop a power-aware job scheduler by applying a rule based control method and takinginto account real world power and speedup profiles to improve power efficiency while adheringto predetermined power constraints. The intensive simulation results shown that our proposed method is able to achieve the maximum utilization of computing resources as compared to baselinescheduling algorithms while keeping the energy cost under the threshold. Moreover, by introducinga Power Performance Factor (PPF) based on the real world power and speedup profiles, we areable to increase the power efficiency by up to 75%.
Show less - Date Issued
- 2016
- Identifier
- CFE0006704, ucf:51907
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006704
- Title
- The Relationship between Agile Project Management and Project Success Outcomes.
- Creator
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Bergmann, Thomas, Karwowski, Waldemar, Elshennawy, Ahmad, Hancock, Peter, Mikusinski, Piotr, University of Central Florida
- Abstract / Description
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Agile project management (APM) has recently emerged as a new approach to managing complex projects. Some experts believe that APM will become the standard project management approach used in the 21st century. However, thus far, the role of agility in project management has not been widely investigated. In the recent past, the concept of agility has mainly been applied to software development projects. The literature on agility is still in its early stages, and further research needs to be...
Show moreAgile project management (APM) has recently emerged as a new approach to managing complex projects. Some experts believe that APM will become the standard project management approach used in the 21st century. However, thus far, the role of agility in project management has not been widely investigated. In the recent past, the concept of agility has mainly been applied to software development projects. The literature on agility is still in its early stages, and further research needs to be conducted in new project management domains.This study is intended to determine the impact of the adoption of APM on project success as perceived by project managers. This investigative approach can be applied to any project domain. In addition, the influencing effects of project complexity on the results of projects are analyzed. Through an analysis of the existing literature, critical success factors and success criteria are identified to develop a model that can be used to assess current APM practice.The research questions are answered by means of an empirical study that collected data using an online survey that was distributed to project managers located across the United States. Confirmatory factor analysis and structural equation modeling are performed to gauge the validity of the proposed research model.The study results show a significant positive relationship between APM and project success. Furthermore, a weak negative association is identified between project complexity and project success, suggesting a need for further research into and refinement of the project complexity construct. Finally, the results reveal an apparent need for additional education and certification in the field of project management, which are expected to lead to an increased use of agile approaches to project management in the future.
Show less - Date Issued
- 2018
- Identifier
- CFE0007391, ucf:52070
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007391
- Title
- Efficient techniques for management and delivery of video data.
- Creator
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Oh, Junghwan, Hua, Kien A., Engineering and Computer Science
- Abstract / Description
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University of Central Florida College of Engineering Thesis; The rapid advances in electronic imaging, storage, data compression telecommunications, and networking technology have resulted in a vast creation and use of digital videos in many important applications such as digital libraries, distance learning, public information systems, electronic commerce, movie on demand, etc. This brings about the need for management as well as delivery of video data. Organizing and managing video data,...
Show moreUniversity of Central Florida College of Engineering Thesis; The rapid advances in electronic imaging, storage, data compression telecommunications, and networking technology have resulted in a vast creation and use of digital videos in many important applications such as digital libraries, distance learning, public information systems, electronic commerce, movie on demand, etc. This brings about the need for management as well as delivery of video data. Organizing and managing video data, however, is much more complex than managing conventional text data due to their semantically rich and unstructured contents. Also, the enormous size of video files requires high communication bandwidth for data delivery. In this dissertation, I present the following techniques for video data management and delivery. Decomposing video into meaningful pieces (i.e., shots) is a very fundamental step to handling the complicated contents of video data. Content-based video parsing techniques are presented and analyzed. In order to reduce the computation cost substantially, a non-sequential approach to shot boundary detection is investigated. Efficient browsing and indexing of video data are essential for video data management. Non-linear browsing and cost-effective indexing schemes for video data based on their contents are described and evaluated. In order to satisfy various user requests, delivering long videos through the limited capacity of bandwidth is challenging work. To reduce the demand on this bandwidth, a hybrid of two effective approaches, periodic broadcast and scheduled multicast, is discussed and simulated. The current techniques related to the above works are discussed thoroughly to explain their advantages and disadvantages, and to make the new improved schemes. The substantial amount of experiments and simulations as well as the concepts are provided to compare the introduced techniques with the other existing ones. The results indicate that they outperform recent techniques by a significant margin. I conclude the dissertation with a discussing of future research directions.
Show less - Date Issued
- 2000
- Identifier
- CFR0001719, ucf:52918
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0001719
- Title
- Managing IO Resource for Co-running Data Intensive Applications in Virtual Clusters.
- Creator
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Huang, Dan, Wang, Jun, Zhou, Qun, Sun, Wei, Zhang, Shaojie, Wang, Liqiang, University of Central Florida
- Abstract / Description
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Today Big Data computer platforms employ resource management systems such as Yarn, Torque, Mesos, and Google Borg to enable sharing the physical computing among many users or applications. Given virtualization and resource management systems, users are able to launch their applications on the same node with low mutual interference and management overhead on CPU and memory. However, there are still challenges to be addressed before these systems can be fully adopted to manage the IO resources...
Show moreToday Big Data computer platforms employ resource management systems such as Yarn, Torque, Mesos, and Google Borg to enable sharing the physical computing among many users or applications. Given virtualization and resource management systems, users are able to launch their applications on the same node with low mutual interference and management overhead on CPU and memory. However, there are still challenges to be addressed before these systems can be fully adopted to manage the IO resources in Big Data File Systems (BDFS) and shared network facilities. In this study, we mainly study on three IO management problems systematically, in terms of the proportional sharing of block IO in container-based virtualization, the network IO contention in MPI-based HPC applications and the data migration overhead in HPC workflows. To improve the proportional sharing, we develop a prototype system called BDFS-Container, by containerizing BDFS at Linux block IO level. Central to BDFS-Container, we propose and design a proactive IOPS throttling based mechanism named IOPS Regulator, which improves proportional IO sharing under the BDFS IO pattern by 74.4% on an average. In the aspect of network IO resource management, we exploit using virtual switches to facilitate network traffic manipulation and reduce mutual interference on the network for in-situ applications. In order to dynamically allocate the network bandwidth when it is needed, we adopt SARIMA-based techniques to analyze and predict MPI traffic issued from simulations. Third, to solve the data migration problem in small-medium sized HPC clusters, we propose to construct a sided IO path, named as SideIO, to explicitly direct analysis data to BDFS that co-locates computation with data. By experimenting with two real-world scientific workflows, SideIO completely avoids the most expensive data movement overhead and achieves up to 3x speedups compared with current solutions.
Show less - Date Issued
- 2018
- Identifier
- CFE0007195, ucf:52268
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007195
- Title
- Comparative nutrient removal with innovative green soprtion media for groundwater and stormwater co-treatment.
- Creator
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Wen, Dan, Chang, Ni-bin, Nam, Boo Hyun, Kibler, Kelly, Wanielista, Martin, Zheng, Qipeng, University of Central Florida
- Abstract / Description
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As indicated by the National Academy of Engineering, the understanding of nitrogen cycle has been deemed as one of 14 grand challenges in engineering of the 21st century. Due to rapid population growth and urbanization, the stormwater runoff increased in quantity as well as its nutrient concentrations, which may trigger serious environmental issues such as eutrophication in aquatic systems and ecosystem degradation. This study focuses on stormwater and groundwater quality control via...
Show moreAs indicated by the National Academy of Engineering, the understanding of nitrogen cycle has been deemed as one of 14 grand challenges in engineering of the 21st century. Due to rapid population growth and urbanization, the stormwater runoff increased in quantity as well as its nutrient concentrations, which may trigger serious environmental issues such as eutrophication in aquatic systems and ecosystem degradation. This study focuses on stormwater and groundwater quality control via Biosorption Activated Media (BAM) which can be applied to enhance the nutrient removal potential as an emerging Best Management Practices (BMPs). BAM was tested in this study with respect to two changing environmental factors including the presence of toxins such as copper and the addition of carbon sources that may affect the removal effectiveness. In addition, the impacts on microbial ecology in BAM within the nitrification and denitrification processes due to those changing environmental conditions were explored through the identification of microbial population dynamics under different environmental conditions. To further enhance the recovery and reuse of the adsorbed ammonia as possible soil amendment or even fertilizer, a new media called Iron Filing Green Environmental Media (IFGEM) was developed based on BAM, with the inclusion of iron filings as a key component for nitrate reduction. The functionality of IFGEM was analyzed through a serious column studies with respect to several key factors, including varying influent nutrient concentrations, pH values, and temperature. The results of the column studies demonstrate promising nutrient removal and recovery potential simultaneously under changing factors.
Show less - Date Issued
- 2018
- Identifier
- CFE0007770, ucf:52394
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007770
