Building Enterprise Systems with ODP: An Introduction to by Peter F. Linington

By Peter F. Linington

The Reference version of Open allotted Processing (RM-ODP) is a global ordinary that offers a superb foundation for describing and construction commonly dispensed platforms and functions in a scientific means. It stresses the necessity to construct those structures with evolution in brain via deciding upon the worries of significant stakeholders after which expressing the layout as a chain of associated viewpoints.

Although RM-ODP has been a regular for greater than ten years, many practitioners are nonetheless ignorant of it. Building company platforms with ODP: An creation to Open dispensed Processing bargains a steady pathway to the basic principles that represent ODP and exhibits how those principles may be utilized while designing and construction difficult platforms. It offers an available advent to the layout ideas for software program engineers and firm architects. The ebook additionally explains the advantages of utilizing viewpoints to provide easier and extra versatile designs and the way ODP could be utilized to provider engineering, open company, and cloud computing.

The authors comprise instructions for utilizing the Unified Modeling Language™ (UML) notation and for structuring and writing approach necessities. They elucidate how this suits into the model-driven engineering instrument chain through techniques, similar to Model-Driven Architecture® (MDA). additionally they display the facility of RM-ODP for the layout and association of complicated disbursed IT structures in e-government, e-health, and effort and transportation industries.

All recommendations and concepts within the ebook are illustrated via a unmarried working instance that describes the IT aid wanted by way of a medium-sized corporation because it grows and develops. entire UML versions and extra can be found at http://theodpbook.lcc.uma.es/

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Example text

It is also often the case that the correspondences are not simply one-to-one; the relationships will generally be more complex. This can be seen by considering the correspondences between the computational and engineering viewpoints (a situation similar to that between the user and provider of middleware). The computational viewpoint takes a very simple view of interactions, abstracting away from the platform-specific details of particular interactions; the engineering viewpoint, on the other hand, abstracts away from most of the detail of the computational design, distinguishing just a few categories of interacting objects, not worrying about why the interactions take place.

2 A Specific Set of Viewpoints The idea of separating concerns by using a set of viewpoints can be applied to many design activities. However, components are more likely to be reused if the same set of viewpoints is accepted by many different teams. The largest possible degree of commonality is needed to support the creation of an 1 The idea of providing a set of viewpoints has arisen in a number of different design and software engineering areas, and an attempt has recently been made to capture the general idea in IEEE 1471, Recommended Practice for Architecture Description of Software-Intensive Systems [75], which has recently been refined within ISO as the standard ISO 42010 [24].

1 17 Object Model ODP system specifications are expressed in terms of objects. Objects are representations of the entities we want to model, including physical elements (mobile phones), human beings (John, the repair centre clerk) or more abstract entities (a pending repair order). An object contains information and offers services. In other words, an object is characterized by its state or, dually, by its behaviour . Depending on the viewpoint and the style of the notation used, the primary emphasis may be placed either on behaviour or on state.

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