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Semantic Infrastructure Overview
In an effort similar to developing this roadmap for the future platform, security and tools, a team is defining the future direction for CBIIT Semantic Infrastructure. While the Semantic Infrastructure Roadmap effort is just beginning, it is expected to be deeply harmonious with the future direction of caGrid. With the adoption of SAIF and ECCF and the introduction of behavioral semantics, the infrastructure of the grid must provide increasingly sophisticated support to leverage and enforce these behavioral specifications.
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For example, the assumption of adherence to a centrally curated authoritative source of information models and terminology is no longer true; the infrastructure must gracefully accommodate local terminologies or localizations. It must enable a path towards "as much interoperability as is possible" between any two parties, rather than enforcing full "compatibility" of all participants. Additionally, the Semantic Infrastructure 2.0 is charged with making the wealth of knowledge contained within the numerous SAIF artifacts available and consumable (in a programmatic fashion) to all the grid participants. Having runtime support for leveraging this information to inform and drive service interactions is a key value proposition for the future platform and semantic infrastructure.
Semantic Infrastructure Registry
As stated above, the key components of the Semantic Infrastructure 2.0 are still being identified and scoped. However one such component has been identified and is expected to be critical to the grid: the Semantic Infrastructure Registry. While it may ultimately be manifested as numerous types of registries and services (and potentially numerous instances of each), the notional Registry will act as a governance-scoped authoritative repository of ECCF artifacts. The ECCF Registry will be populated by the iterative process of service design and specification.
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