New PDF release: Architecture of Integrated Information Systems: Foundations

By August-Wilhelm Scheer

The construction and implementation of built-in info structures contains numerous collaborators together with humans from expert departments. informatics. exterior advisers and brands. they want transparent ideas and l1mits in which they could procedure their person sub-tasks. for you to make sure the logical consistency of the whole undertaking. An structure as a result has to be validated to figure out the elements that make up the knowledge approach and the ways to be used to explain it. while formerly. person descriptive viewpoints similar to the practical illustration or the knowledge version have ruled. this ebook creates an structure in which the functionality. association. and knowledge perspectives of a data approach in the course of the improvement levels of the necessities definition. layout specification and the implementation deSCription should be given equivalent remedy. The ARIS structure thereby constructed is defined in concrete phrases as a data version in the entity-relationship strategy. this knowledge version offers the foundation for the systematic and rational software of tools within the improvement of data platforms. in addition. it's also the root for a repository within which the enterprise's application-specific info. association and serve as types will be saved. a vital estate of the ARIS structure is that a few of the perspectives are usually not in simple terms thought of in isolation. yet a regulate view additionally represents their relationships with one another. therefore. new advancements equivalent to dispensed databases or object-oriented ways could be included within the structure. i want to thank Irene Cameron for her cautious translation of the German original.

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Extra info for Architecture of Integrated Information Systems: Foundations of Enterprise Modelling

Sample text

Do not explicitly present the organization view. but handle it. albeit in rudimentary form. in the course of the discussion of activities (see Olle/Hagelstein/MacDona1d, lrifonnatfon Systems 1988. p. 58). The process definition corresponds largely to the function definition undertaken here. Data and functions. or events and functions. are also clearly separated from each other. The control view introduced here is partially dealt with by linking the three views. For example. the combination of events and processes covers the problems referred to below 27 as event control (see OUe/Hagelstefn/MacDonald Infonnatton Systems 1988, p.

The vertical direction (stepwise derivation) describes three descriptive levels of a phase concept (requirements definition, design specification, implementation description). These levels correspond to the concepts within the ARIS architecture, although not in terms of their contents. For instance, optimization of the user requirements is undertaken at the design specification level of CIM-OSA. In the ARIS approach this has already been undertaken in the context of the requirements definition, so that the result of the requirements definition can be implemented in unmodified fonn.

Views'' of the data are constructed. In the data structure context. entity types and their relationships are defined. On the baSis of the collaboration with Bachman. a Bachman version of the entity relationship approach is supported. This implies. for example. that relationships are not allowed to carry descriptive attributes. The reason given for this "slimmed-down" application of modelling constructs is that it achieves easier interpersonal independence of the modelling. Nevertheless. the basic architecture of the information model permits the use of richer constructs.

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