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Detecting patterns and antipatterns in software using prolog

Alecsandar STOIANOV. Detecting patterns and antipatterns in software using prolog. Introduction. Legacy software. Patterns & Antipatterns. Observer. observerPattern (Project, SubjectN , ObserverN , ConcrSubjsN,ConcrObserversN , UpdateMsN,AttDetMeths,NotifyMeth ):-

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Detecting patterns and antipatterns in software using prolog

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  1. Alecsandar STOIANOV Detecting patterns and antipatterns in software using prolog

  2. Introduction Legacy software

  3. Patterns & Antipatterns

  4. Observer • observerPattern(Project, SubjectN, ObserverN, ConcrSubjsN,ConcrObserversN, UpdateMsN,AttDetMeths,NotifyMeth):- observer(Observer,ObserverN,Project), subject(Subject,SubjectN,Observer,AttDetMeths,NotifyMeth,UpdateMsN), findall(X,concreteSubject(_,X,Subject),ConcrSubjsN), findall(Y,concreteObserver(_,Y,Observer),ConcrObserversN).

  5. God Class • This AntiPattern is characterized by a class diagram composed of a single complex controller class surrounded by simple data classes. The key problem here is that the majority of the responsibilities are allocated to a single class.

  6. Results 1

  7. Results 2

  8. Questions & Answers?

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