# Service Social Modeling: the aim of this activity is to propose a new social model that allows representing and reasoning on the various social links between services. This model will be used to represent social preferences expressed in the subscription to service events. Social links between services can be of different types: explicit links (e.g., declared trust between two services that interacted in the context of a service composition), implicit links (e.g., the dependency between two services that are often used in conjunction with each other). For the creation of the social service modelling, we will investigate the extension of the Friend Of A Friend (FOAF)4 ontology that have been developed for modelling online social networks.
# Social-aware event subscription: the aim of this activity is investigate an extension of existing event models (e.g., WS Notification) in order to support the specification of :
** *Event Semantics* : designates formal information about the content of the event
** *Event Temporal Properties* : designates temporal information about the event
** *Event Spatial Properties* : designates contextual information within a specific location or area
** *Event Social Service Preferences* : designates contextual information related to social preferences between services
# Social-aware event matching: the aim of this activity is to propose event matching algorithms that consider social service preferences in addition to semantic, temporal and spatial event attributes.