The Research And Implementation On Context Awareness For Personal Service Cloud And Dynamic Service Composition

The development of the ubiquitous network makes more and more devices and nodes which can be connected andcontroledaccess to the network,by packaging the ability of the devices and nodes and managing them on the unified platform,personal service cloud for user will appear.SOA provides a specification for generating complex business process throughsimple services,context awareness can affect the execution of the bussiness,the combination of SOA and context awareness will make dynamic service composition possible.The context awareness for personal service cloud and dynamic services composition has broad application prospects.However, the traditional context awareness have the following problems:(1) Scenario model definition is imperfect, which makes scenarios updating and users’operation difficult;(2) qualitative analysis is unable in traditional scene reasoning;(3)The strategy for affecting business is inflexible,andthere is no method to learn new strategy and adapt to the evolution of user preferences.To solve the above problems, first of all, an overall architecture of contextawareness for personal service cloud and dynamic services composition is proposed, CBR is introduced into the system.Secondly, scene model and reasoning mechanism is designed. Then, this paper designed the serviceinformation model, service evaluation mechanism and feedback mechanism. Later, this paper proves the system function through a business process in a smart home environment.Finally, this paper summarizes the main of the full text, describes the main research direction in the future.