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The Open Semantic Framework (OSF) is an integrated software stack using semantic technologies for knowledge management. It has a layered architecture that combines existing open source software with additional open source components developed specifically to provide a complete Web application framework. OSF is made available under the Apache 2 license. OSF is a platform-independent Web services framework for accessing and exposing structured data, semi-structured data, and unstructured data using ontologies to reconcile semantic heterogeneities within the contributing data and schema. Internal to OSF, all data is converted to RDF to provide a common data model. The OWL 2 ontology language is used to describe the data schema overlaying all of the constituent data sources. The architecture of OSF is built around a central layer of RESTful web services, designed to enable most constituent modules within the software stack to be substituted without major adverse impacts on the entire stack. A central organizing perspective of OSF is that of the dataset. These datasets contain the records in any given OSF instance. One or more domain ontologies is used by a given OSF instance to define the structural relationships amongst the data and their attributes and concepts. Some of the use applications for OSF include local government,〔(【引用サイトリンク】title=New website profiles neighbourhoods of Winnipeg )〕 health information systems,〔(【引用サイトリンク】title=HealthDirect Australia )〕 community indicator systems, eLearning, citizen engagement, or any domain that may be modeled by ontologies. Documentation and training videos are provided with the open-source OSF application. == History == Early components of OSF were provided under the names of structWSF and conStruct starting in June 2009. The first version 1.x of OSF was announced in August 2010. The first automated OSF installeer was released in March 2012. OSF was expanded with an ontology manager, structOntology in August 2012. The version 2.x developments of OSF occurred for enterprise sponsors in the period of early 2012 until the end of 2013. None of these interim 2.x versions were released to the public. Then, at the conclusion of this period, Structured Dynamics, the main developer of OSF, refactored these specific enterprise developments to leapfrog to a new version 3.0 of OSF, announced in early 2014. These public releases were last updated to OSF version 3.0.1 in August 2014. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Open Semantic Framework」の詳細全文を読む スポンサード リンク
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