SWISS - The Semantic Web for Interoperable Specifications and Standards - is a linked data model built on top of NISO STS XML. In SWISS, each concept in a document is given a unique address that can be linked to other documents and systems.

SWISS is motivated by the interoperability requirements of standards users. It is more about how to make it easier for engineers to accurately link concepts (instead of whole documents) from authoritative sources to concepts in their enterprise systems. And, to ensure that enterprise systems are be 'aware' of changes made by those authorities. The combination reduces engineering time to knowledge as well as the cost of configuration management.

In summary, this model based approach results in documents that 'understand' who they are connected to, 'why' they are connected, and the state of that connection. We call these smart, connected documents. You can think of this as the Internet of Things for the concepts inside a document. This is a powerful concept for users of technical data derived from specifications and standards.