612,387 research outputs found

    Information Systems Development Methodologies: A Review Through a Teleology Approach

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    The information systems analysis and design methodologies devised at the outbreak of the third industrial revolution shaped the systems analysis discipline and have trickled down to all systems, influencing most aspects of human development. To cope with the explosion of digital technology, these methodologies had to be developed rapidly, drawing from a wide range of theoretical backgrounds, based mainly on the "hard" scientific method and the "softer" systems approach. In the run-up to Industry 4.0, with multiple information systems emerging, reflection on systems’ design fundamentals is important. Intended to serve human activity and well-being, information systems are anthropocentric. Their success lies in their ability to serve human goals. Information systems analysis and design methodologies play a role in this by ensuring the best match between what is sought from systems and what they deliver in terms of the systems’ underlying final cause, or "telos". The paper investigates the teleological orientation of four founding systems analysis and design methodologies. Using the Wood-Harper and Fitzgerald taxonomy in order to identify the conceptual origins of the four methodologies under review, it categorizes and subsequently incorporates them into an extended taxonomy, assesses whether and how they are devised to cater to the incorporation of goals, and explains the inferred results based on the taxonomy. The paper posits that the founding information systems analysis and design methodologies do not have a marked teleological orientation and do not dispose of techniques for adequately incorporating systems’ goals. Doi: 10.28991/HIJ-2021-02-04-09 Full Text: PD

    Space vehicle displays design criteria

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    The guidance, navigation, and control displays associated with manned spaceflight are summarized. Major emphasis were placed on methodologies useful for determining necessary information and its uses, systems analysis techniques, and analytic methods for design and evaluation of such systems

    Creating Responsive Information Systems with the Help of SSADM

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    In this paper, a program for a research is outlined. Firstly, the concept of responsive information systems is defined and then the notion of the capacity planning and software performance engineering is clarified. Secondly, the purpose of the proposed methodology of capacity planning, the interface to information systems analysis and development methodologies (SSADM), the advantage of knowledge-based approach is discussed. The interfaces to CASE tools more precisely to data dictionaries or repositories (IRDS) are examined in the context of a certain systems analysis and design methodology (e.g. SSADM)

    Developing Performance-Centered Systems for Higher Education

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    The experience in developing performance-centered systems for higher education has improved significantly, and practitioners have made considerable progress in elaborating a methodology. This paper discusses the convergence of thinking among various disciplines in analysis and design methodologies, and describes the key elements of the new-emerged performance support engineering development methodology. These are important for designing web-based systems, information systems, and knowledge management systems in higher education.performance-centered systems, web-besd systems, information systems, knowledge management systems, methodology, higher education

    Reliability Analysis of Complex NASA Systems with Model-Based Engineering

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    The emergence of model-based engineering, with Model- Based Systems Engineering (MBSE) leading the way, is transforming design and analysis methodologies. The recognized benefits to systems development include moving from document-centric information systems and document-centric project communication to a model-centric environment in which control of design changes in the life cycles is facilitated. In addition, a single source of truth about the system, that is up-to-date in all respects of the design, becomes the authoritative source of data and information about the system. This promotes consistency and efficiency in regard to integration of the system elements as the design emerges and thereby may further optimize the design. Therefore Reliability Engineers (REs) supporting NASA missions must be integrated into model-based engineering to ensure the outputs of their analyses are relevant and value-needed to the design, development, and operational processes for failure risks assessment and communication

    Special Theme of Research in Information Systems Analysis and Design-IV Evaluation Criteria for Information Systems Development Methodologies

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    The evaluation of information systems development methodologies is becoming increasingly important. Some researchers propose their own criteria for conceptual evaluations. But such criteria are often constrained by the limitation of the researcher\u27s view toward and experience with development methodologies. Furthermore, existing evaluation criteria are either not practical for direct measurement or not tested for validity and reliability. The lack of a generally acceptable, practically valid, and reliable set of criteria for evaluation hinders the development of knowledge in this area. Our study is a step toward developing a systematic process to evaluate information systems development methodologies. We captured the opinions of a group of twenty-eight researchers and practitioners who are experienced in information systems development methodologies. Through a systematic content analysis, the authors classified these criteria into three categories: (1) methodology design, (2) methodology use, and (3) methodology deliverables. The three categories of criteria are not totally separate in that they represent the means and goals of information systems development methodologies. Appropriate criteria should be applied depending on the stages when evaluation is performed

    Learning and Using Methodologies in Information Systems Analysis and Design

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    Situating the transient user: overcoming challenges in the design of e-government systems

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    e-Government systems present new challenges for user involvement in the design process. Existing user-centred and participatory design methodologies were mainly developed for situations where a user is in the workplace. In e-government applications the user population is heterogeneous and numerous; the increasing ubiquity of e-government systems also questions the concept of “the interface”. This paper presents the results of a study of discourses of e-government users in two cases studies of interaction with new information systems in transport, which illuminate usability problems arising from a failure to prioritise users’ needs at all stages. An approach is proposed which accounts for the values as well as the goals of users, appropriating stakeholder analysis and ideas from Soft Systems Methodology while recognising that the routine actions of users in the real world are situated and contingent

    Improving enterprise business processes with systems analysis and design methodologies and tools.

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    Enterprises have to be organized in a business process oriented way. This is in order to be successful in a changing and challenging business environment including uncertainty and complexity in managing business and manufacturing processes. The main objective of this thesis is to implement comprehensive modelling methodologies and tools that capture all useful information included within the enterprise business processes. This has been achieved first through implementing the Systems Analysis and Design (SAD) methodologies and tools for integrating the business design processes. The implementation should recognize the enterprise organization view, data and information view, function view, and also product/service view. Such recognition is required in order to improve the reuse of business process models for the implementation of workflow management applications. The implemented design methodologies have been demonstrated through two case studies, including the modelling of business and automotive manufacturing processes. In Addition, the Architecture of the Integrated Information System (ARIS) has been presented in both implementations using ARIS tool set. The ARIS implementation has assisted in supporting analysis for potential changes, specifying requirements, and also supporting the modeled business processes systems level design and integration activities. Results of using the selected graphical design languages with the systematic explanations of modelling the business process functions and activities revealed the need for implementing comprehensive SAD methodologies. Also, the SAD methodologies have assisted with integrating the enterprise through modelling its business activities, technology, and human elements involved. The benefits and disadvantages of each modelling methodology and tool is studied and discussed in detail in this thesis.Dept. of Industrial and Manufacturing Systems Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2005 .K39. Source: Masters Abstracts International, Volume: 44-03, page: 1475. Thesis (M.A.Sc.)--University of Windsor (Canada), 2005

    Contemporary Approaches and Techniques for the Systems Analyst

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    A recent survey of methodologies and techniques currently used in organiz.ations for developing information systems indicates significant trends that call for a revision of the Information Systems (IS) Systems Analysis and Design (SA&D) course to define what methodologies, techniques, models, and tools need to be taught. As authors of analysis and design textbooks, we are particularly concerned about these trends, as are all who are involved in information systems educational programs. Each program needs to consider how to incorporate three fundamental changes on the SA&D curriculum - the growing popularity ofobject-oriented techniques, the emergence of the iterative approach, and the increasing adoption of the agile approach. This article discusses these three fundamental changes and references research describing the recent trends. Based on this research and on our experience teaching and writing about analysis and design, we make some recommendations. Given the vast number of topics in analysis and design, it is time to seriously consider including two courses in the IS curriculum that can deal with the breadth of the system related topics in the contemporary environment. In terms of functional requirements and analysis issues, we argue for employing a use case driven approach. We recommend that the SA&D courses use Unified Modeling Language (UML) whenever possible for modeling; however, we note some of the usability problems of UML. We suggest that the time has come to drop the data flow diagram (DFD). We also consider the impacts of the outsourcing trend on the course coverage
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