1,867 research outputs found

    A Governance Reference Model For Service-oriented Architecture-based Common Data Initialization A Case Study Of Military Simulation Federation Systems

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    Military simulation and command and control federations have become large, complex distributed systems that integrate with a variety of legacy and current simulations, and real command and control systems locally as well as globally. As these systems continue to become increasingly more complex so does the data that initializes them. This increased complexity has introduced a major problem in data initialization coordination which has been handled by many organizations in various ways. Serviceoriented architecture (SOA) solutions have been introduced to promote easier data interoperability through the use of standards-based reusable services and common infrastructure. However, current SOA-based solutions do not incorporate formal governance techniques to drive the architecture in providing reliable, consistent, and timely information exchange. This dissertation identifies the need to establish governance for common data initialization service development oversight, presents current research and applicable solutions that address some aspects of SOA-based federation data service governance, and proposes a governance reference model for development of SOA-based common data initialization services in military simulation and command and control federations

    An Updated ERP Systems Annotated Bibliography: 2001-2005

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    The goal of this study is to provide an updated annotated bibliography of ERP publications published in the main IS conferences and journals during the period 2001-2005, categorizing them through an ERP lifecycle based framework that is structured in phases. The first version of this bibliography was published in 2001 (Esteves and Pastor, 2001c). However, so far, we have extended the bibliography with a significant number of new publications in all the categories used in this paper. We also reviewed the categories and some incongruities were eliminated. Furthermore, we present topics for further research in each phase

    An Updated ERP Systems Annotated Bibliography: 2001-2005

    Get PDF
    This study provides an updated annotated bibliography of ERP publications published in the main IS conferences and journals during the period 2001-2005, categorizing them through an ERP lifecycle-based framework that is structured in phases. The first version of this bibliography was published in 2001 (Esteves and Pastor, 2001c). However, so far, we have extended the bibliography with a significant number of new publications in all the categories used in this paper. We also reviewed the categories and some incongruities were eliminated.ERP

    Engineering Blockchain Based Software Systems: Foundations, Survey, and Future Directions

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    Many scientific and practical areas have shown increasing interest in reaping the benefits of blockchain technology to empower software systems. However, the unique characteristics and requirements associated with Blockchain Based Software (BBS) systems raise new challenges across the development lifecycle that entail an extensive improvement of conventional software engineering. This article presents a systematic literature review of the state-of-the-art in BBS engineering research from a software engineering perspective. We characterize BBS engineering from the theoretical foundations, processes, models, and roles and discuss a rich repertoire of key development activities, principles, challenges, and techniques. The focus and depth of this survey not only gives software engineering practitioners and researchers a consolidated body of knowledge about current BBS development but also underpins a starting point for further research in this field

    ERP in SMEs : exploring ERP lifestyle cost issues

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    This thesis presents a study of Enterprise Resource Planning (ERP) systems lifecycle in small and medium-sized enterprises (SMEs). The majority of businesses and firms around the globe can be considered to be SMEs. Thus, SMEs are seen to be typical companies that are the cornerstone of most economies. Compared with large enterprises (LEs), SMEs have limited budgets and resources, and have a higher sensitivity to costs. Although ERP adoption is one of the most complex, costly, and biggest projects an enterprise can embark on, many factors lead SMEs to take such a decision. When SMEs take the first steps towards adopting an ERP system, they need to think about many things; first and foremost, they need to take into account the cost of adoption. Literature and professional reports show that a prevailing number of ERP adoption projects fail because of inaccurate or optimistic budgets and time schedules. In addition, many organizations have difficulty identifying the potential cost factors that could occur during their adoption projects Moreover, current mainstream cost management and estimation methods are inadequate in ERP adoptions settings. The purpose of this thesis is to explore and identify the cost factors and other cost estimation related issues that may occur when SMEs adopt ERP systems. Many researchers have argued that expected and potential benefits are influential during the budgeting process and investment evaluation, and should not be ignored. Thus, the investigation of benefits management and realization practices falls within the boundaries of this research. In order to identify cost factors associated with ERP adoption in SMEs, and SMEs practices and behaviours in relation to the estimation of costs and benefits, it is necessary to explore one main research question and its subset of questions.- What are the challenges to the management and estimation of costs and benefits within on-premise ERP adoption projects in SMEs? The ERP adoption term used in this thesis refers to the first five phases of the ERP lifecycle framework developed by Esteves and Pastor (2007), which denote the ERP introduction process. This process moves from the “adoption decision” through to go-live and maintenance, and evolution; however, it excludes the retirement phase. In order to understand and investigate the challenges in their perspective context, a qualitative exploratory research approach is adopted to answer there search question stated above. This PhD study was carried out through a combination of literature reviews, panels of experts, and case study research. The empirical part of the study encompasses a multiple case study, an experts’ panel, and one in-depth case study of ERP adoptions in four SMEs. All four organizations are privately owned Egyptian small and medium -sized enterprises. Besides the target organizations, the data collection process covered two ERP vendors (local and international), two implementation partners, two independent ERP and investment consultants, and eight participants on the experts’ panel. Data analysis was carried out in order to identify impending cost factors and challenges that SMEs may encounter when justifying and evaluating their investments and estimating their adoption budgets. This thesis has mainly adopted a six-phase ERP lifecycle framework. There search results are presented in six articles, which focused on the different lifecycle phases. The articles have been published in international peer reviewed conference proceedings and journals
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