Foundational Architecture of the Knowledge Architecture provides the common elements of interoperability, such as object identity, versioning, modularity, and knowledge representation.
Terminology Knowledge layer is responsible for structured sets of medical terms and codes that define concepts of interest, including descriptions, dialects, language, and semantic hierarchy.
Statement Model layer is responsible for defining how data elements are combined to create a statement. This layer reuses the artifacts defined in the Terminology Knowledge layer.
Assertional Knowledge layer uses the Terminology Knowledge layer concepts to specify non-defining facts that may be used by procedural knowledge algorithms.
Procedural Knowledge layer is responsible for information about standard ways to carry out specific procedures and other procedural guidelines, e.g., treatment protocols for diseases and order sets focused on certain patient situations.

Impact on Strategies

References

Veterans Affairs (VA) Terminology Strategy of the Health Informatics Business Line, VA/DoD Health Executive Committee. White Paper. 2021-03-12. 200728 -JCISI FINAL-v2 CDO comments 210312.1