By Gabor Maygar, Gabor Knapp, Wita Wojtkowski, Gregory Wojtkowski, Jože Zupancic
Information platforms improvement (ISD) progresses quickly, continuously growing new demanding situations for the pros concerned. New recommendations, methods and strategies of platforms improvement emerge consistently during this box. development in ISD comes from examine in addition to from perform. the purpose of the convention is to supply a global discussion board for the trade of principles and reports among academia and undefined, and to stimulate exploration of latest solutions.
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The static description of the DB, defined during the conceptual DB design, is illustrated in Figure 3c. In Figure 5, we have defined that in order to store an order we need only some of the items from the global DB schema. This is illustrated by the Order concept with its connected properties. In Figure 5b, the user initiates an update operation on an order stored in the DB using SalesSC2. The DB-state Order[Stored] is used as precondition for changing an order. Order[Changed] is an intermediate non-persistent state in the software component, while Order[Updated] is a DB-state.
Several Outlines of Graph Theory in Framework of MDA 35 4 Conclusions This paper is based on the previous researches [16, 17] where different software development methods were analyzed. All these methods could provide promising results in the realization of MDA statements, but quantity of the expanded effort is different. The 2HMD approach was proposed on the previous researches [8, 16, 12], and in the current paper it is improved with introducing of several formalism, and trying to reduce required effort for software development.
Associations among classes are defined basing on the graph G3 and using the following dependency: if there is an arc between A and B, than in the class diagram an association between A and B will exist . Performing all the described transformations we could receive a class diagram, which is suitable for code generation. 3 Formalized 2HMD Approach: a Case Study The proposed methodology could be illustrated with a practical example. The problem domain is Hotel room reservation : Several Outlines of Graph Theory in Framework of MDA 33 A system gives the opportunity to reserve a room in the hotel.
Advances in Information Systems Development by Gabor Maygar, Gabor Knapp, Wita Wojtkowski, Gregory Wojtkowski, Jože Zupancic