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Concept of Requirements Management Tool. International Workshop on Challenges in methodology, representation, and tooling for automotive embedded systems 24 – 25 September 2012 Berlin Markus Kelanti (markus.kelanti@oulu.fi), Pasi Kuvaja (pasi.kuvaja@oulu.fi). Contents. Motivation
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Concept of Requirements Management Tool International Workshop on Challenges in methodology, representation, and tooling for automotive embedded systems 24 – 25 September 2012 Berlin Markus Kelanti (markus.kelanti@oulu.fi), Pasi Kuvaja (pasi.kuvaja@oulu.fi)
Contents • Motivation • Requirements Management concepts • Requirements Management Workflow • Requirements Management activities • Task based approach with views • RE item data structure • RMT prototype • RMT prototype example screenshots
Motivation • Based on previous experience and interviews, we have following main problems in Requirements Management: • Methodology related • Understanding the original request • Information content of RE items • Unclear concepts and different stakeholders have different understanding of concepts • Large number of requirements (over 10000) in complex systems • Tool related • Support for co-operation in distributed development • Traceability to original customer requirements • Seamless editing of RE items in multi-user environments • Support for Requirements Management • There is a clear need to rethink practices in Requirements Management
Requirements Management Concepts • Request • All incoming needs, requirements and demands are recorded as requests. • RMT is designed to ensure every incoming request is described from the original stakeholder’s point of view • Requests are always analysed in Problem Domain • Requirement • Requirements are derived from requests • Requirements are used to describe how a request can be realised in a Solution Domain system • Requirements are always analysed in Solution Domain • Feature • Features are derived from requirements and requests linked to them • Features describe what the produced system should do, based on requests and requirements
Requirements Management Workflow Request Request Request Requirement Requirement Requirement Requirement Requirement Feature Feature
Requirements Management activities • Each RE item in RMT has an owner and contributor(s) • Owner is responsible for the RE item and can assign contributors for a RE item • Contributors are other users who can participate to analyse, write or comment a RE item • After a RE item owner considers the itemto be ready, he submits it for a decision making process • Responsible people in this process decide whether to accept, reject or return it back for additional analysis • Accepted RE items shall be sent to a next phase in a process
Task based approach with views • Tasks are part of activities belonging to a development process and describe what should be done in the process • Views can be customised to support any task in the RE • The goal is to show only the relevant information for a task • Users can access a same RE item but use different or same data using different views Elicitation Analysis RE Activities … Task … Request input Comment requests Reporting view Decison making … View
RE item data structure • Each RE item has a similar basic description: • The origin stakeholder • The system in focus • RE item description • Interest to system • Request value • Impact to system • Rest of the information is divided into: • System information • Business information • Organisational and process relevant information • Item specific information • Additional content: • Attachments • History • Comments and notes
RMT prototype • Requirements Management Tool (RMT) prototype supports the RE phase in AMALTHEA Design Flow • The purpose of RMT is to guide the user to record incoming requests and supportrequirement and feature development. • RMT provides a semi-structured data format for recording requests, requirements and features. • RMT is designed to be a task based tool that utilises different views in order to enable: • Co-operation between users • Work support for new users • Customisable process and tailored tasks/views • RMT supports data traceability.
Questions,comments? • Contact information: • Pasi Kuvaja, University of Oulu • pasi.kuvaja@oulu.fi • Markus Kelanti, University of Oulu • markus.kelanti@oulu.fi