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Adopting a Software Component Model in Real-Time Systems Development
ABB Automat Technology.ORCID iD: 0000-0002-0424-7639
2004 (English)In: 28TH ANNUAL NASA GODDARD SOFTWARE ENGINEERING WORKSHOP, PROCEEDINGS, 2004, 114-119 p.Conference paper, Published paper (Refereed)
Abstract [en]

Component-based software engineering (CBSE) and the use of (de-facto) standard component models have gained popularity in recent years, particularly in the development of desktop and server-side software. This paper presents a motivation for applying CBSE to real-time systems and discusses the consequences of adopting a software component model in the development of such systems. Specifically, the consequences of adopting Microsoft's COM, DCOM, and .NET models are analyzed. The most important aspects of these models are discussed in an incremental fashion. The analysis considers both real-time systems in general, and a real-life industrial control system where some aspects the COM model have been adopted. It is concluded that adopting these models makes it possible to meet real-time requirements, but that some overhead must be expected and that special precautions may have to be taken to prevent loss of real-time predictability.

Place, publisher, year, edition, pages
2004. 114-119 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:mdh:diva-4032ISI: 000189450100014ISBN: 0-7695-2064-2 (print)OAI: oai:DiVA.org:mdh-4032DiVA: diva2:120569
Conference
28th Annual NASA Goddard Software Engineering Workshop, Grennbelt, MD, Dec. 03-04, 2003
Available from: 2006-11-20 Created: 2006-11-20 Last updated: 2014-05-16Bibliographically approved
In thesis
1. An Evolutionary Approach to Software Components in Embedded Real-Time Systems
Open this publication in new window or tab >>An Evolutionary Approach to Software Components in Embedded Real-Time Systems
2006 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

Component-based software engineering denotes the practice of building software from pre-existing smaller products, in particular when this is done using standardized software component models. The main expected benefits of this practice over traditional software engineering approaches are increased productivity and timeliness of development projects. While the use of software component models has become common for desktop and server-side software, this is not the case in the domain of embedded real-time systems, presumably due to the special requirements such systems have to meet with respect to predictable timing and limited use of resources. Much research exists that aims to define new component models for this domain, typically focusing on source code components, static system configuration, and relatively narrow application domains.

This dissertation explores the alternative approach of using components based on binary code, allowing dynamic configuration, and targeting a broader domain. A study of a general purpose component model shows that the model is compatible with real-time requirements, although putting some restrictions on its use may be necessary to ensure predictability. A case study demonstrates how the model has been used with advantage in an industrial control system. The dissertation furthermore proposes an approach for extending the component model with run-time services for embedded real-time systems. It presents a prototype tool for supporting such services, along with two empirical studies to evaluate the approach and the tool as well as the component model itself. One study shows that both the component model and the services provided by the tool result in very modest and predictable run-time overheads. The other study, evaluating the effects on productivity and quality of using the approach in a software development project, did not produce quantitative evidence, but concludes that the approach is promising and identifies possible adjustments to it and opportunities for further studies.

Place, publisher, year, edition, pages
Västerås: Institutionen för Datavetenskap och Elektronik, 2006. 207 p.
Series
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 35
Keyword
Software Components, Embedded Real-Time Systems
National Category
Software Engineering
Research subject
Datavetenskap
Identifiers
urn:nbn:se:mdh:diva-166 (URN)91-85485-29-2 (ISBN)
Public defence
2006-12-18, Zeta, T, Högskoleplan 1, Västerås, 13:00
Opponent
Supervisors
Available from: 2006-11-20 Created: 2006-11-20 Last updated: 2013-12-03

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