By Michael P. Papazoglou, Stefano Spaccapietra, Zahir Tari
Until eventually lately, details platforms were designed round diverse enterprise capabilities, reminiscent of debts payable and stock keep an eye on. Object-oriented modeling, against this, buildings platforms round the data--the objects--that make up many of the enterprise capabilities. simply because information regarding a selected functionality is restricted to at least one place--to the object--the process is protected against the results of swap. Object-oriented modeling additionally promotes higher figuring out of necessities, transparent designs, and extra simply maintainable systems.This publication makes a speciality of contemporary advancements in representational and processing points of complicated data-intensive functions. The chapters hide "hot" themes equivalent to program habit and consistency, opposite engineering, interoperability and collaboration among gadgets, and work-flow modeling. each one bankruptcy incorporates a overview of its topic, via object-oriented modeling thoughts and methodologies that may be utilized to real-life applications.Contributors : F. Casati, S. Ceri, R. Cicchetti, L. M. L. Delcambre, E. F. Ecklund, D. W. Embley, G. Engels, J. M. Gagnon, R. Godin, M. Gogolla, L. Groenewegen, G. S. Jensen, G. Kappel, B. J. Krämer, S. W. Liddle, R. Missaoui, M. Norrie, M. P. Papazoglou, C. guardian, B. Perniei, P. Poncelet, G. Pozzi, M. Schreft, R. T. Snodgrass, S. Spaccapietra, M. Stumptner, M. Teisseire, W. J. van den Heuevel, S. N. Woodfield.
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A class! defines the mes sages that can be sent to an object with the corresponding signatures, the attributes to be represented in the object, and the associations between objects of this class 1. This is more precisely a type; we use the term class as in OMT. 1 Comparison of OMT and our Behavioral Approach to Analysis Object Modeling Technique Disciplined 00 Software (OMT) (22) Engineering (DOOSE) Starting point: Concepts/structure in the real world Use cases (behavior required by users) Motivation for objects: Objects of interest in the real world Objects to support responsibili ties for a use case Motivation for con necting objects: Associations of interest in the real world An object that must invoke a responsibility of another object (a collaboration) Resulting object structure: Detailed structure using many structural constructs and constraints Classes, responsibilities, & collaborations (without explicit attributes or associations) Results: Good characterization of how individual objectgs respond to events Good characterization of how a group of objects collaborate to support a use case and other objects (of this class or a different class).
1. The difference between these two approaches is most evident during analysis when the first object model is constructed. The Object Modeling Technique (OMT) (22) recommends that the object model be defined first, with an emphasis on representing objects (and attributes and associ ations) that correspond to concepts of interest in the real world. The second step is to model each object that has interesting states along with the events that cause state transitions, in a state diagram, based on statecharts (14).
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