Physical Sciences and Mathematics Commons^™

Public Health Providers' Perceptions Of Electronic Health Records In A Disaster, Sherhonda Yvette Harper

Walden Dissertations and Doctoral Studies

The introduction of federal initiatives and incentives regarding health information technology fostered a movement towards the adoption of electronic health records (EHR). Implementation of EHRs sparked discussions among healthcare providers, patients, and others about the benefits or challenges of the move from the traditional paper method to the electronic version in healthcare settings. A knowledge gap in research involving the usefulness of EHRs and their impact to the delivery of care in other settings exists. The purpose of this qualitative study was to explore public health providers' perceptions of the meaningful use of EHRs in a disaster setting. Study participants …

Aligning Social Media, Mobile, Analytics, And Cloud Computing Technologies And Disaster Response, William Tuley Worthy

Walden Dissertations and Doctoral Studies

After nearly 2 decades of advances in information and communications technologies (ICT) including social media, mobile, analytics, and cloud computing, disaster response agencies in the United States have not been able to improve alignment between ICT-based information and disaster response actions. This grounded theory study explored emergency response ICT managers' understanding of how social media, mobile, analytics, and cloud computing technologies (SMAC) are related to and can inform disaster response strategies. Sociotechnical theory served as the conceptual framework to ground the study. Data were collected from document reviews and semistructured interviews with 9 ICT managers from emergency management agencies in …

Initiating Factors Affecting Information Systems Project Success, Jonathan Olubunmi Afolabi

Walden Dissertations and Doctoral Studies

Information systems (IS) projects are complex and costly, but only a 3rd of IS projects are successful; the Standish Group reported that 32% of IS projects were successful in 2012. Although investments in research have led to improvements in practice, there is a general perception that management failures are responsible for the low rate of IS project success. The effects of initiating factors on project outcome had not been sufficiently explored; few IS researchers have explored the initiation phase. The purpose of this grounded theory study was to explore project initiation factors, including relational, as well as decision-making aspects, and …

Strategies Used By Cloud Security Managers To Implement Secure Access Methods, Eric Harmon

Walden Dissertations and Doctoral Studies

Cloud computing can be used as a way to access services and resources for many organizations; however, hackers have created security concerns for users that incorporate cloud computing in their everyday functions. The purpose of this qualitative multiple case study was to explore strategies used by cloud security managers to implement secure access methods to protect data on the cloud infrastructure. The population for this study was cloud security managers employed by 2 medium size businesses in the Atlanta, Georgia metropolitan area and that have strategies to implement secure access methods to protect data on the cloud infrastructure. The technology …

Video Game Development Strategies For Creating Successful Cognitively Challenging Games, Walter K. Williams

Walden Dissertations and Doctoral Studies

The video game industry is a global multibillion dollar industry with millions of players. The process of developing video games is essential for the continued growth of the industry, and developers need to employ effective strategies that will help them to create successful games. The purpose of this explorative qualitative single case study was to investigate the design strategies of video game developers who have successfully created video games that are challenging, entertaining, and successful. The technology acceptance model served as a conceptual framework. The entire population for this study was members of a video game development team from a …

Exploring Management Practices Of The Health Care System For Contractors, Gary L. Williams

Walden Dissertations and Doctoral Studies

Researchers have found that military members serving in war experienced changes in physical and mental health. Military members' healthcare is managed by the Department of Defense. The problem was that management practices of the system for providing long-term healthcare for employees of a contracting company working in foreign combat zones is either minimal or nonexistent. The purpose of this case study was to explore ways that contractor managers and government managers can work together to provide healthcare for those contract employees who will be deployed with the U.S. military. The primary research question was to determine what managers of contractors …

Effect Of Early Exposure To Technology On Student Satisfaction With Online Education, Mohamed Boudalia

Walden Dissertations and Doctoral Studies

U.S. student enrollment in online classes in the higher education sector has grown rapidly since 2001. Researchers have found that student satisfaction often leads to higher student retention, yet more research was needed to understand reasons for student satisfaction with online education. The purpose of this nonexperimental study was to examine the relationship between students' early exposure to technology (i.e., before college) and their satisfaction with online education in college. The unified theory of acceptance and use of technology were the theoretical framework. A convenience sample of 103 participants from the population of online students at colleges and universities in …

Strategies For Applying Electronic Health Records To Achieve Cost Saving Benefits, Daniel Kanyi Ngunyu

Walden Dissertations and Doctoral Studies

The American Recovery and Reinvestment Act (ARRA) of 2009 authorized the distribution of about $30 billion incentive funds to accelerate electronic health record (EHR) applications to improve the quality of care, safety, privacy, care coordination, and patients' involvement in healthcare. EHR use has the potential of saving $731 in costs for hospitals per patient admission; however, most hospitals are not applying EHR to reach the level at which cost savings are possible. The purpose of this single case study was to explore strategies that IT leaders in hospitals can use to apply EHR to achieve the cost saving benefits. The …

The Effects Of Computer Crimes On The Management Of Disaster Recovery, Tim Gene Proffitt

Walden Dissertations and Doctoral Studies

The effects of a technology disaster on an organization can include a prolonged disruption, loss of reputation, monetary damages, and the inability to remain in business. Although much is known about disaster recovery and business continuance, not much research has been produced on how businesses can leverage other technology frameworks to assist information technology disaster recovery. The problem was the lack of organizational knowledge to recover from computer crime interruptions given the maturity level of existing disaster recovery programs. The purpose of this Delphi study was to understand how disaster recovery controls and processes can be modified to improve response …

A Study Of Groupthink In Project Teams, John Reaves

Walden Dissertations and Doctoral Studies

Project teams advance a common goal by working together on projects that require a diverse set of skills and are difficult for 1 person to complete. In this study, there was an exploration of the antecedents to groupthink in project teams from the perspectives of project managers. Many companies use project managers to complete critical objectives; avoiding groupthink is crucial to their success. The purpose of this research was to understand why project teams are susceptible to groupthink and what precautions managers can take to avoid it. The conceptual framework utilized in this study was Janis' concept of groupthink, which …

Effective Strategies For Managing Continuous Consultant Turnover In It Project Teams, Nicholas K. Jury

Walden Dissertations and Doctoral Studies

Information Technology project managers have found that collective turnover of consultants lowers code quality, increases knowledge loss and negatively impacts team performance. Within the last decade, companies have begun to see that offshore consultants have a turnover rate greater than 26%, more than double the rates for the rest of the IT consulting industry. Collective turnover also puts additional pressure on the project team, causing work exhaustion and thus additional turnover. The purpose of this single case study was to explore strategies that 6 successful project managers utilized to limit and reduce the impact of collective turnover of their hybrid …

Digital Strategies Senior Bank Executives In Mauritius Use To Improve Customer Service, Sailesh Sewpaul

Walden Dissertations and Doctoral Studies

Customers' use of digital banking has reshaped traditional banking, and senior level bank executives must know how to leverage this innovation to improve customer service to increase profitability. Using the technology acceptance model as the conceptual framework, the purpose of this multiple case study was to explore effective digital banking strategies that senior level executives used to improve customer service to increase profitability. The target population for this study included senior-level executives from 3 banks in Mauritius possessing successful development and implementation experience in digital banking strategies to improve customer service. Data were collected through semistructured interviews and organizational documents, …

Relationship Between Software Development Team Structure, Ambiguity, Volatility, And Project Failure, Dominic Martinelli Saxton

Walden Dissertations and Doctoral Studies

Complex environments like the United States Air Force's advanced weapon systems are highly reliant on externally developed software, which is often delivered late, over budget, and with fewer benefits than expected. Grounded in Galbraith's organizational information processing theory, the purpose of this correlational study was to examine the relationship between software development team structure, ambiguity, volatility and software project failure. Participants included 23 members of the Armed Forces Communications and Electronics Association in the southeastern United States who completed 4 project management surveys. Results of multiple regression analysis indicated the model as a whole was able to predict software project …

Strategies For E-Commerce Adoption In A Travel Agency, Anita Smith

Walden Dissertations and Doctoral Studies

In 2016, online travel sales increased 8%, resulting in profits increasing to over 565 billion U.S. dollars. Traditional travel agencies in brick-and-mortar storefronts are facing challenges related to competing with online travel agencies (OTAs), attracting new customers, and retaining existing customers. The purpose of this qualitative case study was to explore the e-commerce processes, business models, and strategies that leaders of traditional travel agencies use to compete with OTAs. The study sample consisted of 8 travel professionals from 3 small travel agencies located in the mid-Atlantic region of the United States. The conceptual framework for this study was Rogers's diffusion …

A Grounded Theory Of Emergent Leadership In Nonhierarchical Virtual Teams, Randall Fleming

Walden Dissertations and Doctoral Studies

A Grounded Theory of Emergent Leadership in Nonhierarchical Virtual Teams

by

Randall David Fleming

MS, Colorado Technical University, 2008

BA, The Ohio State University, 1984

Dissertation Submitted in Partial Fulfillment

of the Requirements for the Degree of

Doctor of Philosophy

Management

Walden University

November 2018

Strategies To Manage Cloud Computing Operational Costs, Frankie Nii A Sackey

Walden Dissertations and Doctoral Studies

Information technology (IT) managers worldwide have adopted cloud computing because of its potential to improve reliability, scalability, security, business agility, and cost savings; however, the rapid adoption of cloud computing has created challenges for IT managers, who have reported an estimated 30% wastage of cloud resources. The purpose of this single case study was to explore successful strategies and processes for managing infrastructure operations costs in cloud computing. The sociotechnical systems (STS) approach was the conceptual framework for the study. Semistructured interviews were conducted with 6 IT managers directly involved in cloud cost management. The data were analyzed using a …

Complexity Theory Of Leadership And Management Information, Mark Aloysius Simpson

Walden Dissertations and Doctoral Studies

Implementing effective leadership strategies in management of information systems (MIS) can positively influence overall organizational performance. This study was an exploration of the general problem of failure to lead effectively in the current knowledge-based economy and the resulting deleterious effects on organizational performance and threats to continuing organizational viability. The specific problem was the lack of understanding regarding the interaction of leadership processes with MIS functions and the impact on organizational success. Managers' and employees' lived experiences of leadership in small- to medium-sized enterprises were explored, as well as how those experiences influenced the organization's adaptive responses regarding technology and …

Small Business Owners' Search For Profitability Under The Affordable Care Act, Alton Simpson

Walden Dissertations and Doctoral Studies

Health care costs for small businesses have been rising annually for the past few decades. Congress voted to pass the Affordable Care Act (ACA) to lower the cost of health care in 2010. The purpose of this phenomenological study was to explore small business owners' experiences in implementing ACA requirements and how the ACA affects small businesses as their owners work to make these organizations profitable. Complex adaptive systems theory formed the conceptual framework for this study Data were gathered during face-to-face and telephone interviews with a sample of 20 small business owners in the Philadelphia region. The research questions …

Successful Strategies For Implementing An Enterprise Resource Planning System, Arrogah Adade-Boafo

Walden Dissertations and Doctoral Studies

The enterprise resource planning (ERP) implementation success rate is as low as 30%. Researchers have shown that ERP system implementation could cause both system and organization failures, affecting operations and stakeholders, alike. The technology-organization-environment conceptual framework was used to ground this qualitative single-case study. The purpose of the study was to explore strategies that a manufacturing firm in Ghana used to implement ERP systems successfully. The population of this case study comprised 5 stakeholders from a manufacturing firm in Ghana who had success in implementing an ERP system. Data were collected using face-to-face semistructured interviews and review of various corporate …

Strategies For Successfully Managing Organizational It Projects, Joseph Rathbun

Walden Dissertations and Doctoral Studies

Over 70% of information technology (IT) projects in large organizations in the United States run over budget or fail to reach completion primarily due to a lack of effective strategies. The purpose of this single case study was to explore strategies that IT project managers used to successfully complete IT projects. Hersey and Blanchard's situational leadership theory was the conceptual framework. Purposive sampling method was used to identify 2 successful IT project managers in Central Texas. Data gathered from semistructed interviews and collected from publicly available documents were analyzed using coding techniques, constant comparison, and key word phrases. Member checking …

Support Vector Machines For Image Spam Analysis, Aneri Chavda, Katerina Potika, Fabio Di Troia, Mark Stamp

Faculty Publications, Computer Science

Email is one of the most common forms of digital communication. Spam is unsolicited bulk email, while image spam consists of spam text embedded inside an image. Image spam is used as a means to evade text-based spam filters, and hence image spam poses a threat to email-based communication. In this research, we analyze image spam detection using support vector machines (SVMs), which we train on a wide variety of image features. We use a linear SVM to quantify the relative importance of the features under consideration. We also develop and analyze a realistic “challenge” dataset that illustrates the limitations …

Exploratory Reconstructability Analysis Of Accident Tbi Data, Martin Zwick, Nancy Ann Carney, Rosemary Nettleton

Systems Science Faculty Publications and Presentations

This paper describes the use of reconstructability analysis to perform a secondary study of traumatic brain injury data from automobile accidents. Neutral searches were done and their results displayed with a hypergraph. Directed searches, using both variable-based and state-based models, were applied to predict performance on two cognitive tests and one neurological test. Very simple state-based models gave large uncertainty reductions for all three DVs and sizeable improvements in percent correct for the two cognitive test DVs which were equally sampled. Conditional probability distributions for these models are easily visualized with simple decision trees. Confounding variables and counter-intuitive findings are …

Code: Coherence Based Decision Boundaries For Feature Correspondence, Wen-Yan Lin, Fan Wang, Ming-Ming Cheng, Sai-Kit Yeung, Philip H. S. Torr, Jiangbo Lu

Research Collection School Of Computing and Information Systems

A key challenge in feature correspondence is the difficulty in differentiating true and false matches at a local descriptor level. This forces adoption of strict similarity thresholds that discard many true matches. However, if analyzed at a global level, false matches are usually randomly scattered while true matches tend to be coherent (clustered around a few dominant motions), thus creating a coherence based separability constraint. This paper proposes a non-linear regression technique that can discover such a coherence based separability constraint from highly noisy matches and embed it into a correspondence likelihood model. Once computed, the model can filter the …

Collaboration Patterns In Software Developer Network, Didi Surian, Ee-Peng Lim, David Lo

Research Collection School Of Computing and Information Systems

In this entry, we mine collaboration patterns from a large software developer network (Surian et al. 2010). We consider high- and low-level patterns. High-level patterns correspond to various network-level statistics that we observe to hold in this network. Low-level patterns are topological subgraph patterns that are frequently observed among developers collaborating in the network. Mining topological subgraph patterns are difficult as it is an NP-hard problem. To address this issue, we use a combination of frequent subgraph mining and graph matching by leveraging the power law property exhibited by a large collaboration graph. The technique is applicable to any software …

Classification Of Eeg Signals Of User States In Gaming Using Machine Learning, Chandana Mallapragada

Masters Theses

"In this research, brain activity of user states was analyzed using machine learning algorithms. When a user interacts with a computer-based system including playing computer games like Tetris, he or she may experience user states such as boredom, flow, and anxiety. The purpose of this research is to apply machine learning models to Electroencephalogram (EEG) signals of three user states -- boredom, flow and anxiety -- to identify and classify the EEG correlates for these user states. We focus on three research questions: (i) How well do machine learning models like support vector machine, random forests, multinomial logistic regression, and …

Skylens: Visual Analysis Of Skyline On Multi-Dimensional Data, Xun Zhao, Yanhong Wu, Weiwei Cui, Xinnan Du, Yuan Chen, Yong Wang, Dik Lun Lee, Huamin Qu

Research Collection School Of Computing and Information Systems

Skyline queries have wide-ranging applications in fields that involve multi-criteria decision making, including tourism, retail industry, and human resources. By automatically removing incompetent candidates, skyline queries allow users to focus on a subset of superior data items (i.e.. the skyline), thus reducing the decision-making overhead. However, users are still required to interpret and compare these superior items manually before making a successful choice. This task is challenging because of two issues. First, people usually have fuzzy, unstable, and inconsistent preferences when presented with multiple candidates. Second, skyline queries do not reveal the reasons for the superiority of certain skyline points …

Exercising Efficiently With An Equipment Ticketing Mobile Application, Eric Merryman

Williams Honors College, Honors Research Projects

The purpose of this project is to explore the discipline of developing mobile applications using a cross-platform framework. Mobile devices have had a large influence on our lifestyles and with the global mobile application market grossing billions of dollars, many companies are adapting to the change and creating mobile applications for their business. With a variety of competing mobile devices and operating systems, companies must cater to each system. Cross-platform frameworks allow developers to quickly create mobile applications that can be used on many different devices. Xamarin.Forms is a cross-platform framework that allows developers to create a mobile application using …

Smart-Teleprompter: An Online Teleprompter With Text Editing, Mikyla Wilfred

Williams Honors College, Honors Research Projects

Mikyla Wilfred

Major: Computer Science

Project Sponsor: Dr. Collard

Number of Project Credits: 3

Smart-Teleprompter

The smart-teleprompter is a website that allows a logged in user to edit text files as well as teleprompt them straight to the screen. A teleprompter is used by newscasters and other media professionals to read scripts while still looking at or near the camera. My project uses this concept creating a page that defaults to white font on a black background that can scroll through the script. The website allows the logged in user to save defaults of font color, background color, font style …

My.Eskwela: Designing An Enterprise Learning Management System To Increase Social Network And Reduce Cognitive Load, Ma. Regina Justina E. Estuar, Orven E. Llantos

Department of Information Systems & Computer Science Faculty Publications

A typical learning management system (LMS) provides a tool for teachers to upload and create links to resources, create online assessments and provide immediate evaluation to students. As much as it tries to be student centered, most LMS remains a tool for instruction rather than learning. In a learning generation that is bound by very high online social capital, connectedness to the family weakens. my.Eskwela (My School) redefines LMS to include a parent component to address the need for inclusive participation of parents in the teaching-learning process. Basis for re-design came from the low user acceptance of teachers in using …

The Efficacy Of An Emr-Enabled Text Messaging System To The Expanded Health Beliefs, Diabetes Care Profile And Hba1c Of Diabetes Mellitus Patients, Ma. Regina Justina E. Estuar, John Noel Victorino, Razel Custodio

Department of Information Systems & Computer Science Faculty Publications

As diabetes mellitus (DM) becomes a global emergency, there is a need to explore novel interventions to address problems in self – management. Literature agree in the potential of mobile phones to carry-out self-care for a wide-array of disease conditions. Diabetes Self – Management Support and Education Through Text – Messaging (DSMSET) is a low-cost, two-way text messaging system designed to deliver self - help, educational messages based on the nine (9) dimensions of health management. DSMSET serves as a plugin to SHINE OS+, an open – source electronic medical record (EMR) system. The research is also based on the …