Design Patterns for Graceful Degradation

Saridakis, Titos

doi:10.1007/978-3-642-10832-7_3

Cited by 13 publications

(10 citation statements)

References 19 publications

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“…Such systems are said to have the graceful degradation feature. A detailed explanation of graceful degradation can be found in [14]. The Active Electronically Scanned Array (AESA) radar, which transmits and receives with multiple antennas simultaneously is an example of such systems.…”

Section: Graceful Degradationmentioning

confidence: 99%

Fault Management Based on Systems Description as Directed Graph With Absolute Dependence Relations

Tigrek

2019

IEEE Systems Journal

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Fault management based on systems description as directed graph with absolute dependence relations Citation for published version (APA):Tigrek, R. (2019). Fault management based on systems description as directed graph with absolute dependence relations.Abstract-A new systems description method that utilizes graph theory for systems modeling is presented. The new method represents the system in terms of a directed graph, where each system component is represented by a vertex and dependencies between system components are represented by directed edges, also called arcs. The absolute dependence rule is introduced as the criterion for the analysis of a system into the graph representation. Together with the concept of an elementary component of a system, the proposed systems description method is applicable to a wide variety of systems for fault diagnosis, reliability engineering and other system modeling and system architecture design purposes. The application of the new method for fault diagnosis is demonstrated in this paper by developing a novel fault management algorithm, and connections with several other systems description methods are presented.

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Section: Graceful Degradationmentioning

confidence: 99%

Fault Management Based on Systems Description as Directed Graph With Absolute Dependence Relations

Tigrek

2019

IEEE Systems Journal

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“…Saridakis presented a system of 13 patterns including most of the common mechanisms for reliability, including Fail-Stop Processor, Acknowledgement, Heartbeat, Passive Replication, and others [56]; his patterns are illustrated using a pattern diagram. Later, he described patterns for Fault Containment [57], Checkpoint-based Recovery [58], and Graceful Degradation [59].…”

Section: Reliability Patternsmentioning

confidence: 99%

Reliability Patterns: A Survey

Fernández¹,

Buckley²

2019

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation

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This study presents an enumeration and evaluation of reliability patterns. We first catalog these patterns to make them accessible and useful to software developers and system designers. The objective here is to identify areas for which there are no patterns or the existing patterns are not complete enough to be useful to software designers. The patterns are classified based on the reliability properties they provide. As examples of our methodology we evaluate some of the patterns discussed in this survey.

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“…Concepts of graceful degradation can be captured in design patterns as described in [9], where the State Decrement Pattern (SDP) and the Minimum Subtrahend Pattern (MSP) are presented. The SDP describes different aspects of a system and how its states can be lowered in the occurrence of an error.…”

Section: Architectural Patternsmentioning

confidence: 99%

“…We assume that graceful degradation is represented as in [9], where a degradation step is a state decrement. As discussed in Section II, graceful degradation patterns describe the solution to situations where a given component of the system malfunctions and cannot be further executed/used within the system.…”

Section: ) Modeling Graceful Degradationmentioning

confidence: 99%

Pattern-Based Approach for Designing Fail-Operational Safety-Critical Embedded Systems

Penha

Weiss

Stante

2015

2015 IEEE 13th International Conference on Embedded and Ubiquitous Computing

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To deal with fail-operational (FO) requirements in today's safety-critical networked embedded systems (SCNES), engineers have to resort to concepts such as redundancy, monitoring, and special shutdown procedures. Hardware-based redundancy approaches are not applicable to many embedded systems domains (e.g., automotive systems), because of prohibitive costs. In this scenario, adaptability concepts can be used to fulfill these FO requirements while enabling optimized resource utilization. However, the applicability of such concepts highly depends on the support for the engineering during system development. We propose an approach to cope with the challenges of fail-operational behavior of SCNES in which engineers are supported by design concepts for realizing safety, reliability, and adaptability requirements through the use of architectural patterns. The approach allows expressing FO concepts at the software architecture level. This lowers the effort for developing SCNES by utilizing generic patterns for general and reoccurring mechanisms.

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Design Patterns for Graceful Degradation

Cited by 13 publications

References 19 publications

Fault Management Based on Systems Description as Directed Graph With Absolute Dependence Relations

Fault Management Based on Systems Description as Directed Graph With Absolute Dependence Relations

Reliability Patterns: A Survey

Pattern-Based Approach for Designing Fail-Operational Safety-Critical Embedded Systems

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