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The ii4sm architects have envisioned the logical components of the semantic infrastructure shown in the the logical components, contract design, and deployment and runtime diagrams, organized into a "semantic backbone" composing the three sets of interdependent semantic services as shown in the figure that follows. ii4sm believes that a semantic backbone comprising both types of shared elements (from a derivational and compositional approach) can be used to resolve the semantics of shared information from both sources. The figure that follows is a very high level representation that includes several components that are not fully architected. However, it seems clear that in addition to the work done in Initiative 1, Initiative 3 and Initiative 5 (which would realize the resources called Information Management, Rules Management and Terminology Management respectively) additional integration would be needed to enable the components to operate as implied in the figure that follows.

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Figure 8: Grouping of Semantics Services
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. Some resources not explicitly represented (e.g. ISO 11179
Repository and ISO 21090 Service). Courtesy of A Honey & J Landgrebe

This Initiative will encompass definition and realization and testing of the interactions among the model, terminology and rules components. These tests would be designed to assess the backbone's ability to correctly represent semantics of services designed top down (derivative) and bottom up (compositional) – assuming both styles would be required to support the clinical and research domain's operations. (Assessment of the ability of the compositional approach to support the need of the research domain for rapid evolution is not part of this proposal. That is assumed to be an initiative undertaken by the life sciences).

Requirements

;Initiative 7 section of the Requirements / Initiatives Master List

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Forum

;Initiative 7 - Assessment of semantic unification of compositional and derivational models