Download e-book for kindle: Advances in Information Systems Development by Gabor Maygar, Gabor Knapp, Wita Wojtkowski, Gregory

By Gabor Maygar, Gabor Knapp, Wita Wojtkowski, Gregory Wojtkowski, Jože Zupancic

ISBN-10: 0387708014

ISBN-13: 9780387708010

Information platforms improvement (ISD) progresses speedily, continuously developing new demanding situations for the pros concerned. New options, ways and methods of structures improvement emerge regularly during this box. development in ISD comes from study in addition to from perform. the purpose of the convention is to supply a global discussion board for the trade of rules and studies among academia and undefined, and to stimulate exploration of recent solutions.

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For conceptual DB design, the Entity Relationship (ER) modeling language [8] or some extensions of it [26] has been seen as a de facto standard [25]. In this paper, conceptual DB design is seen as divided into two distinct parts: view design and view integration. During view design, views for each end user or user group are defined (see Figure 3a and 3b). During view integration the defined views are integrated into one global conceptual DB schema (see Figure 3c). Fig. 3. Identification and resolution of inconsistency in view integration.

Receiving of the conceptual model from the BP model Construction of sub-process models is not shown here. These should be constructed for each process from the initial model. By the proposed approach the next major step of model transformation is receiving of the transitional auxiliary model (TAM) from the sub-process model. 9. It is assumed that both models are graphs. As shown in graph transformation, nodes from the sub-process graph will be transformed into arcs of the TAM, and arcs of the sub-process will be transformed into nodes of the TAM.

Finally, the software component is responsible for notifying the result of the transaction to the user. 7 Summary and Conclusion Databases are today serving companies with data that are interpreted to information and used not only by the end users in their daily work but also during critical decision-making. This indicates that a DB needs to deliver correct data when an end user is making a request for it. Database consistency is therefore a critical issue because an inconsistent DB may deliver erroneous data to an end user which Designing Software Components for Database Consistency 45 in the long run may influence how profitable a company is.

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Advances in Information Systems Development by Gabor Maygar, Gabor Knapp, Wita Wojtkowski, Gregory Wojtkowski, Jože Zupancic

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