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Many companies experience that their corporate intranet is getting complex and poorly manageable. We believe that developing a model for the website, or shared information space will make the management easier and provide solutions that support collaboration and knowledge sharing within the enterprise. The present paper proposes a meta model defining the conceptual building blocks of an information space. The meta model takes knowledge as well as information sharing into account by letting ontologies represent problem domains important to the enterprise, and be used as means of imposing structure on available information. To support the different needs of the employees the ability to interact with the information space through different perspectives is essential. An example of how the meta model can be deployed to support contextual retrieval of information in a workflow management application is described. KeywordsShared information space, knowledge sharing, meta model, ontology

Currently, several enterprise architecture jrameworks exist, and there is a need to be able to communicate about them. To this end we have proposed an Architecture Framework Ontology^ (AFO) providing characteristics to be assigned to the framework under consideration. AFO is then used to characterise and compare six existing frameworks, and results from this task are presented.