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Extending the OpenUP/Basic Requirements Discipline to Specify Capacity Requirements
Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory. Linköping University, The Institute of Technology.
Ericsson AB, Linköping, Sweden.
Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory. Linköping University, The Institute of Technology.
2007 (English)In: Requirements Engineering Conference, 2007. RE '07, IEEE Computer Society, 2007, 328-333 p.Conference paper, Published paper (Refereed)
Abstract [en]

Software processes, such as RUP and agile methods, focus their requirements engineering part on use cases and thus functional requirements. Complex products, such as radio network control software, need special handling of non-functional requirements as well. We describe how we used the eclipse process framework to augment the open and minimal OpenUP/basic process with improvements found in management of capacity requirements in a case-study at Ericsson. The result is compared with another project improving RUP to handle performance requirements. The major differences between the improvements are that 1) they suggest a special, dedicated performance manager role and we suggest that present roles are augmented, 2) they suggest a bottom-up approach to performance verification while we focus on system performance first, i.e. top-down. Further, we suggest augmenting UMLl-2 models with capacity attributes to improve information flow from requirements to implementation.

Place, publisher, year, edition, pages
IEEE Computer Society, 2007. 328-333 p.
Series
International Requirements Engineering Conference. Proceedings, ISSN 1090-705X
Keyword [en]
Capacity requirements, process improvement, method plug-in, OpenUP/Basic, Eclipse Process Framework
National Category
Software Engineering
Identifiers
URN: urn:nbn:se:liu:diva-16797DOI: 10.1109/RE.2007.24ISI: 000251576800040ISBN: 978-0-7695-2935-6 (print)OAI: oai:DiVA.org:liu-16797DiVA: diva2:174165
Conference
15th IEEE International Requirements Engineering Conference, 15-19 October 2007, Delhi, India
Available from: 2009-02-19 Created: 2009-02-19 Last updated: 2013-06-27Bibliographically approved
In thesis
1. Processes and Models for Capacity Requirements in Telecommunication Systems
Open this publication in new window or tab >>Processes and Models for Capacity Requirements in Telecommunication Systems
2009 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Capacity is an essential quality factor in telecommunication systems. The ability to develop systems with the lowest cost per subscriber and transaction, that also meet the highest availability requirements and at the same time allow for scalability, is a true challenge for a telecommunication systems provider. This thesis describes a research collaboration between Linköping University and Ericsson AB aimed at improving the management, representation, and implementation of capacity requirements in large-scale software engineering.

An industrial case study on non-functional requirements in general was conducted to provide the explorative research background, and a richer understanding of identified difficulties was gained by dedicating subsequent investigations to capacity. A best practice inventory within Ericsson regarding the management of capacity requirements and their refinement into design and implementation was carried out. It revealed that capacity requirements crosscut most of the development process and the system lifecycle, thus widening the research context considerably. The interview series resulted in the specification of 19 capacity sub-processes; these were represented as a method plug-in to the OpenUP software development process in order to construct a coherent package of knowledge as well as to communicate the results. They also provide the basis of an empirically grounded anatomy which has been validated in a focus group. The anatomy enables the assessment and stepwise improvement of an organization’s ability to develop for capacity, thus keeping the initial cost low. Moreover, the notion of capacity is discussed and a pragmatic approach for how to support model-based, function-oriented development with capacity information by its annotation in UML models is presented. The results combine into a method for how to improve the treatment of capacity requirements in large-scale software systems.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2009. 62 p.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1238
National Category
Computer Science
Identifiers
urn:nbn:se:liu:diva-16932 (URN)978-91-7393-700-9 (ISBN)
Public defence
2009-03-26, Visionen, hus B, Campus Valla, Linköpings universitet, Linköping, 10:15 (English)
Opponent
Supervisors
Available from: 2009-02-25 Created: 2009-02-25 Last updated: 2009-04-23Bibliographically approved

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Borg, AndreasSandahl, Kristian

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Citation style
  • apa
  • harvard1
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