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- W2913622092 abstract "The long known credo of requirements engineering states that it is challenging to build the right system if you do not know what right is. There is strong evidence that this credo exactly defines and describes the necessity of requirements engineering. Fixing a defect when it is already fielded is reported to be up to eighty times more expensive than fixing the corresponding requirements defects early on. In general, conducting sufficient requirements engineering has shown to be a crucial success factor for software development projects. Throughout the progression from initial stakeholders' wishes regarding the system-to-be to a specification for thesystem-to-be requirements engineers have to undergo a complex decision process for forming the actual plan connecting stakeholder wishes and the final specification. Indeed, decision making is considered to be an inherent part of requirements engineering. In this thesis, we try to understand which activities and information are needed for selecting requirements, which the challenges are, how an ideal solution for selecting requirements would look like, and where the current state of the art is deficient regarding the ideal solution.Within this thesis we identify the information necessary for an informed requirements selection, present a process in which one collects all the necessary information, highlight the challenges to be addressed by this process and its activities, and a selection of methods to conduct the activities of the process. All the collected information is then used for an automated requirements selection using an optimization model which is also part of the contribution of this thesis. As we identified two major gaps in the state of the art considering the proposed process and its activities, we also present twonovel methods for context elicitation and for legal compliance requirements elicitation to fill the gaps as part of the main contribution.Our solution for context elicitation enables a domain-specific contextestablishment based on patterns for different domains. The context patterns allow a structured elicitation and documentation of relevant stakeholders and technical entities for a system-to-be. Both, the documentation in means of graphical pattern instances and textual template instances as well as the method for collecting the necessary information are explicitly given in each context pattern. Additionally, we also provide the means which are necessary to derive new context patterns and extend our context patterns language which is part of this thesis.Our solution for legal compliance requirements elicitation is a pattern-based and guided method which lets one identify the relevant laws for a system-to-be, which is described in means of functional requirements, and which intertwines the functional requirements with the according legal requirements. This method relies on the collaboration of requirements engineers and legal experts, andbridges the gap between their distinct worlds.Our process is exemplified using a running example in the domain of service oriented architectures. Additionally, the results of applying (parts of) the process to real life cases from the smart grid domain and voting system domain are presented, as well as all other results from the scientific means we took to ground and validate the proposed solutions." @default.
- W2913622092 created "2019-02-21" @default.
- W2913622092 creator A5042136459 @default.
- W2913622092 date "2017-05-04" @default.
- W2913622092 modified "2023-09-24" @default.
- W2913622092 title "Domain- and Quality-aware Requirements Engineering for Law-compliant Systems: Problem- and Pattern-Based Requirements Elicitation, Analysis, Reconciliation,and Optimization for Heterogeneous Needs and Stakeholders" @default.
- W2913622092 hasPublicationYear "2017" @default.
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