Search: onr:"swepub:oai:research.chalmers.se:2c16842d-77b9-4abc-a5ba-d2d151eff068" >
Tuning self-adaptat...
Tuning self-adaptation in cyber-physical systems through architectural homeostasis
-
- Gerostathopoulos, Ilias (author)
- Technische Universität München (TUM),Technical University of Munich (TUM)
-
- Skoda, Dominik (author)
- Univerzita Karlova,Charles University
-
- Plasil, Frantisek (author)
- Univerzita Karlova,Charles University
-
show more...
-
- Bures, Tomas (author)
- Univerzita Karlova,Charles University
-
- Knauss, Alessia, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
show less...
-
(creator_code:org_t)
- Elsevier BV, 2019
- 2019
- English.
-
In: Journal of Systems and Software. - : Elsevier BV. - 0164-1212. ; 148, s. 37-55
- Related links:
-
https://research.cha...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Self-adaptive software-intensive cyber-physical systems (sasiCPS) encounter a high level of run-time uncertainty. State-of-the-art architecture-based self-adaptation approaches assume designing against a fixed set of situations that warrant self-adaptation. As a result, failures may appear when sasiCPS operate in environment conditions they are not specifically designed for. In response, we propose to increase the homeostasis of sasiCPS, i.e., the capacity to maintain an operational state despite run-time uncertainty, by introducing run-time changes to the architecture-based self-adaptation strategies according to environment stimuli. In addition to articulating the main idea of architectural homeostasis, we introduce four mechanisms that reify the idea: (i) collaborative sensing, (ii) faulty component isolation from adaptation, (iii) enhancing mode switching, and (iv) adjusting guards in mode switching. Moreover, our experimental evaluation of the four mechanisms in two different case studies confirms that allowing a complex system to change its self-adaptation strategies helps the system recover from run-time errors and abnormalities and keep it in an operational state.
Subject headings
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datorteknik (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Inbäddad systemteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Embedded Systems (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Datorsystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Computer Systems (hsv//eng)
Keyword
- Run-time uncertainty
- Self-adaptation strategies
- Architecture homeostasis
- Software architecture
- Cyber-physical systems
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database