Context modeling based on feature models expressed as views on ontologies via mappings

Abstract

This paper presents an approach for context modeling in complex self adapted systems consisting of many independent context-aware applications. The contextual information used for adaptation of all system applications is described by an ontology treated as a global context model. A local context model tailored to the specific needs of a particular application is defined as a view over the global context in the form of a feature model. Feature models and their configurations derived from the global context state are then used by a specific dynamic software product line in order to adapt applications at runtime. The main focus of the paper is on the realization of mappings between global and local contexts. The paper describes an overall model architecture and provides corresponding metamodels as well as rules for a mapping between feature models and ontologies.

Context-aware reconfiguration in evolving software product lines

“…In [33], FMs are enriched with contextual information but, differently from our case, their connection with the features is given using some external rules or constraints. In [34], the contextual information used to model adaptation of applications is described by an ontology representing a global context model. Moreover, local context models tailored to the specific needs of a particular application are defined by the authors as a view over the global context in the form of a feature model.…”

Dynamic Software Product Line Engineering: A Reference Framework

“…In another case study [50], the OWL language is used to represent the context model of a smart hotel. As an another example in [51], the global context which is represented with an ontology is mapped to the feature model which represents the variability of the system. Using this mapping, a local context of each variant of system is found based on the features in that con¯guration.…”

“…Figure 5 shows these dimensions and some of their possible values which will be reviewed below. [51,52] or what components are di®erent between the variants of the system.…”

“…Usually in this planning type, the e®ects of di®erent actions on the adaptation goals are formally de¯ned. Subsequently, the problem of¯nding the most suitable action is reduced to a satis¯ability problem (SAT) [51,69] or a constraint satisfaction problem (CSP) [70][71][72] which is then solved using a SAT-solver or a CSP-solver. For example, in Parra et al [70], a CSP solver is used at runtime to¯nd the most suitable variant of the system which satis¯es the goals of adaptation.…”

Anomaly Detection and Explanation in Context-Aware Software Product Lines

“…Other works which focus on modeling context-aware SPLs exist. For instance, in [14] context-awareness is captured by providing a second FM while in [25] ontologies are used instead to model the context. Unfortunately, these works just present these models without discussing their analysis.…”