Aspect-Oriented Database Systems by Awais Rashid PDF

By Awais Rashid

ISBN-10: 3642056695

ISBN-13: 9783642056697

ISBN-10: 3662058510

ISBN-13: 9783662058510

Recently, a brand new set of software program improvement recommendations has turn into to be had, jointly termed Aspect-Oriented software program improvement (AOSD). This goals to help the modularization of systemic homes (also known as crosscutting issues) and their next composition with the opposite elements of a procedure.

Rashid makes a speciality of using Aspect-Oriented Programming (AOP) strategies to modularize differently generally scoped good points in database structures, corresponding to the evolution or the versioning version, to enhance their customizability, extensibility and maintainability. He indicates how using AOP can remodel the way in which we advance, use and keep database platforms. He additionally discusses how database structures can aid AOP by way of offering a method for the garage and retrieval of aspects.

"Aspect-Oriented Database platforms" indicates the prospective synergy among AOP and database structures, and is of specific curiosity to researchers, graduate scholars and software program builders in database platforms and applications.

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Extra info for Aspect-Oriented Database Systems

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1 Separation of Concerns The evolution of software development techniques has been driven by the need to achieve a better separation of concerns: encapsulating features into separate entities in order to localise changes and deal with one important issue at a time (Dijkstra 1976). In the case of programming languages (cf. Fig. 1), the first significant step was the development of high-level languages to separate the conceptual structure of a program from its machine representation. Once high-level languages were developed, features were introduced to modularise concerns into coherent behavioural and structural abstractions, for instance, procedures and records.

For one organisation (or application) it might be inefficient to keep track of change histories, hence making schema modification the ideal evolution model. For another organisation (or application) maintenance of change histories and their granularity might be critical. In some cases, custom variations of existing approaches might be desirable. As shown in Fig. , the instance adaptation approach and the change history manager. Consequently, any change to the evolution model (whether carried out offline or dynamically) can have a large ripple effect on the schema manager.

That very step, the beginning of hope, in itself dashed all hopes of magical solutions. It told workers that progress would be made stepwise, at great effort, and that a persistent, unremitting care would have to be paid to a discipline of cleanliness. " (Brookes 1995) As shown in Fig. 1, Aspect-Oriented Programming (AOP) is another increment to meet our desire for an improved separation of concerns. It aims at modularising concerns which are normally spread across various program modules (resulting in a phenomenon known as code tangling (Kiczales, Lamping, et al.

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Aspect-Oriented Database Systems by Awais Rashid


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