Autonomous decentralized system
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An autonomous decentralized system (or ADS) is a decentralized system composed of modules or components that are designed to operate independently but are capable of interacting with each other to meet the overall goal of the system. This design paradigm enables the system to continue to function in the event of component failures. It also enables maintenance and repair to be carried out while the system remains operational. Autonomous decentralized systems have a number of applications including industrial production lines, railway signalling[1] and robotics.
History
Autonomous decentralized systems were first proposed in 1977.[2]
ADS architecture
An ADS is a decoupled architecture where each component or subsystem communicates by message passing using shared data fields. A unique feature of the ADS is that there is no central operating system or coordinator. Instead each subsystem manages its own functionality and its coordination with other subsystems. When a subsystem needs to interact with other subsystems it broadcasts the shared data fields containing the request to all other subsystems. This broadcast does not include the identification or address of any other subsystem. Rather the other subsystems will, depending on their purpose and function, receive the broadcast message and make their own determination on what action (if any) to take.
An ADS is also similar to a blackboard system used in AI where a collection of agents will act upon seeing any data change in the common blackboard.
Cloud computing also uses autonomous computing, but its architecture and framework are different from ADS.
Conferences
IEEE International Symposium on Autonomous Decentralized Systems (ISADS) is the major conference on this topic, and it has been held for many years. ISADS 2015 will be held in Taichung, Taiwan.
References
- ^ Winter, Victor L. and Bhattacharya, Sourav (2001). High Integrity Software. p. 105. ISBN 0-7923-7949-7.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ Mori, Kinji (2007). "Autonomous Decentralized System for Service Assurance and Its Application". Service Availability: 4th International Service Availability Symposium: 2. ISBN 978-3-540-72735-4.
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