Distributed system and brokering method using context
AssigneeHitachi, Ltd.
InventorsHidenori Yamamoto, Shigetoshi Sameshima, Katsumi Kawano
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Abstract
A distributed system in which a plurality of devices are coupled to each other through a network, includes a service scenario which describes functions necessary to provide a service and relations between the functions in general description; a context which serves as a criterion for selecting devices to be used in providing the service; an extraction unit which extracts devices necessary for the service based on the service scenario; a detection unit which detects devices located in a site where the service can be provided to a service requester; and a service execution unit which executes the service for the service requester by linking the devices detected based on the context.
Claims14
A distributed system in which a plurality of devices are coupled to each other through a network, comprising:
- a service scenario which describes functions necessary to provide a service and relations between the functions in general description;
- a context which serves as a criterion for selecting devices to be used in providing the service;
- an extraction unit which extracts devices necessary for the service based on the service scenario;
- a detection unit which detects devices located in a site where the service can be provided to a service requester;
- and
- a service execution unit which executes the service for the service requester by linking the devices detected based on the context.
A brokering method using a context in a distributed system in which a plurality of devices are coupled to each other through a network, the method comprising the steps of:
- preparing a service scenario and a context, the service scenario describing functions necessary to provide a service and relations between the functions in general description, the context serving as a criterion for selecting devices to be used in providing the service;
- extracting devices necessary for the service based on the service scenario;
- detecting devices located in a site where the service can be provided to a service requester;
- and
- executing the service for the service requester by linking the devices detected based on the context.
Dependencies are inferred from the claim text.