Development of situation-aware application software for ubiquitous computing environments

PO-SAAC: A Purpose-Oriented Situation-Aware Access Control Framework for Software Services

“…The CONtext ONtology (CONON) [6], situation theory ontology (STO) [7] and situation-awareness (SAW) ontology [8] research describe 'situation' as the states of the specific kind of entities (e.g., attributes of users or other relevant entities). However, this research are highly domain-specific and they do not consider several important concepts which are important consideration for situation modeling in today's dynamic environments: the states of the relevant relationships between entities, and the purpose or user's intention in accessing the services.…”

“…In the present age, ontology-based modeling technique has been proven as a suitable logical language for modeling dynamic contexts/situations (e.g., [12], [13]). The ontology-based modeling approach to achieve situation-awareness (e.g., [7], [8]) is not only beneficial from the representational viewpoint but also beneficial from the reasoning viewpoint; that is, once facts about the world is stated in terms of the ontology, other facts can be inferred using the inference engine through the inference rules.…”

Automated Agent Synthesis for Situation Awareness in Service-Based Systems

“…MobiPADS [16] is a reflective middleware designed to support dynamic adaptation of context-aware services based on which application's runtime reconfiguration is achieved. RCSM [2,3] provides the capabilities of context acquisition, situation analysis and SA communication management, and a middleware-based SA application software development framework. However, there are no existing approaches to automated synthesis of software components for providing runtime execution support for SAW in service-oriented computing environment.…”

“…The existing approaches may be divided into two categories: One focuses on modeling and reasoning SAW [6][7][8][9][10][11][12], and the other focuses on providing toolkit, framework or middleware for development and runtime support for SAW [2,3,[13][14][15][16].…”

“…In these systems, situation awareness (SAW), which is the capability of being aware of situations and adapting the system's behavior based on situation change [2,3], is often needed for system status monitoring, adaptive service coordination and flexible security policy enforcement [4].…”