Fundamental issues in testing distributed real-time systems

Schütz, Werner

doi:10.1007/bf01088802

Cited by 42 publications

(15 citation statements)

References 49 publications

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“…An extensive survey of the debugging problems is given by McDowell and Helmbold in [19]. Schutz also gives an extensive review of the problems, emphasizes the problem of observability, and comments on the difficulties of using conventional debuggers [12]. He also describes several monitoring systems.…”

Section: Instrumentation Practices For Embedded Systemsmentioning

confidence: 99%

Dynamic analysis for locating product features in Ada code

White

Wilde

2001

Proceedings of the 2001 Annual ACM SIGAda International Conference on Ada

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1. ABSTRACT In this paper, we describe a Software Reconnaissance method for locating product features in code. The University of West Florida has provided a public domain Reconnaissance tool for C and C++. Characteristics of the Ada programming language present new interesting issues related to the development of a similar tool for Ada Reconnaissance, particularly its use in embedded systems, multi-tasking systems, and systems with real-time constraints. We describe our ongoing efforts to develop a public domain Ada Reconnaissance tool.

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Section: Instrumentation Practices For Embedded Systemsmentioning

confidence: 99%

Dynamic analysis for locating product features in Ada code

White

Wilde

2001

Proceedings of the 2001 Annual ACM SIGAda International Conference on Ada

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“…These problems are well known to testers of such systems (Schutz, 1994). Thus the established dynamic analysis methods for feature location are not complete when applied to distributed systems.…”

Section: Joint Stars-an Early Case Studymentioning

confidence: 99%

An approach to feature location in distributed systems

Edwards

Simmons

Wilde

2006

Journal of Systems and Software

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“…The response is observed and compared to a known good reference [9], [10]. This approach by its nature causes an interference with a potentially ongoing operation of the SUT.…”

Section: Monitoring Versus Testingmentioning

confidence: 99%

Towards a Systematic Test for Embedded Automotive Communication Systems

Armengaud

Steininger

Horauer

2008

IEEE Trans. Ind. Inf.

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Abstract-The introduction of computer-controlled intelligent safety and comfort features has turned cars into complex distributed computing systems. In such a system the proper operation of the communication backbone as well as the proper interaction of components from different vendors must be ensured for all configurations and operating conditions. This system-level test goes far beyond the (isolated) test of single components and represents a substantial problem, that seems to be still largely unsolved, although its solution is crucial for maintaining the consumers' trust in modern automotive electronics.In this paper we concentrate on the test of distributed systems based on FlexRay, the protocol that is envisioned as the communication backbone for future automotive systems. The cornerstones of our approach are a decomposition of the system into layers and mechanisms, and a versatile strategy for monitoring and stimulation under various conditions. Our concept can be adapted to diverse needs ranging from an early debugging with full access to the system, over non-intrusive online testing during inter-operability tests, to maintenance testing that is restricted to a remote access only. We give detailed discussions of the requirements and present our solutions for the various issues involved. Selected use cases demonstrate the usefulness of the taken approach.Index Terms-Automotive electronics, embedded systems, FlexRay, system test, time-triggered communication. I. MOTIVATION DOZENS of complaints like "while overtaking another car, the engine unexpectedly went into emergency mode and dropped to a crawl" or "windows open automatically when in heavy rain" were reported to a local Austrian automotive magazine by its readers for a survey on problems with electronics in new cars [1]. The fact that virtually all brands were affected, from low-cost to luxury, clearly indicates substantial problems with the integration of electronic systems in general. Still nobody is seriously talking about returning to the "good old days." Electronics has been the key innovation driver for automotive systems throughout the last decade, and this situation is not going to change in the near future. The vehicle networks are transforming automotive components into truly dis- tributed electronic systems, e.g., with up to 72 units interconnected with various different fieldbus systems in the new Mercedes S-class (see [2]). Replacing rigid mechanical components with dynamically configurable electronic elements triggers an almost organic, system-wide level of integration. As a result, the automotive industry expects savings resulting in improved environmental tolerance and cost reduction. Sophisticated and more complex features for safety and comfort such as chassis control and smart sensors are expected to be developed faster and more reliably and will likely become mainstream. Unfortunately, all these functionalities translate into higher performance (resource usage), reliability, and maintainability requirements for future automotive sy...

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Fundamental issues in testing distributed real-time systems

Cited by 42 publications

References 49 publications

Dynamic analysis for locating product features in Ada code

Dynamic analysis for locating product features in Ada code

An approach to feature location in distributed systems

Towards a Systematic Test for Embedded Automotive Communication Systems

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