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• W42542003 abstract "In software development, customer requirements are the driver for the producedsystem. The requirements are ultimately translated by software engineers intoa solution. An architecture is created based on the requirements. The architecturedescribes the system at a high level of abstraction using one or more views.During and after the process of creating the solution, the customer needs oftenevolve resulting in changed requirements. The architecture has to be changedaccordingly to satisfy the changed requirements. Change impact analysis willhelp changing the architecture to support the satisfaction of the changed requirements.Currently, performing change impact analysis is hard, because both therequirements and the architecture are not formalized.We propose an approach on how to perform change impact analysis in softwarearchitectures. This approach is based on the validation of functional requirements.The functional requirements are transformed into a formal behaviordescription. This formal behavior description states the behavior which mustbe present, or absent, in the behavior of the architecture. If one or more of theformal behavior descriptions fail, we can identify which requirements are notsatisfied by the architecture. Based on traces between the requirements andarchitecture, and the requirements which are not satisfied by the architecture,we can identify the components of the architecture which are not satisfying therequirements.In order to validate requirements, we need to derive the behavior of the architecture.The behavior of the architecture is derived by building a simulatablemodel based on the architecture. AADL is used to record the architecture itself.The architecture is annotated with additional properties to specify the behaviorof individual components. The simulation of the architecture is performed usingthe modeling language Alloy. Using the simulation in Alloy, we derive the statespace which represents the behavior of the architecture. After simulation of thearchitecture, we can assert whether the architecture satisfies the requirements.Given the derived state space through simulation, satisfaction of functionalrequirements, and traces from functional requirements to architecture components,we perform change impact analysis. We provide several guidelines fordifferent activities of this process. To identify strengths and weaknesses of theapproach, the apporoach is evaluated by performing five change scenarios in anexisting project. The results of the change scenarios are discussed afterwards.From this research we can conclude that the proposed approach is promising.However, Alloy imposes limitation on the size of the architecture and length ofsimulation. Also, Alloy is slow when simulating architectures. Other directionsare given for future research." @default.
• W42542003 created "2016-06-24" @default.
• W42542003 creator A5026204508 @default.
• W42542003 date "2009-01-01" @default.
• W42542003 modified "2023-09-27" @default.
• W42542003 title "Impact Analysis of Changes in Functional Requirements in the Behavioral View of Software Architectures" @default.
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