The purpose of this catalog is to identify and maintain a list of all the technology in use across the enterprise, including hardware, infrastructure software, and application software. An agreed technology portfolio supports lifecycle management of technology products and versions and also forms the basis for definition of technology standards.

The Technology Portfolio catalog provides a foundation on which to base the remaining matrices and diagrams. It is typically the start point of the Technology Architecture phase.

Technology registries and repositories also provide input into this catalog from a baseline and target perspective.

Technologies in the catalog should be classified against the TOGAF Technology Reference Model (TRM) - see Part VI, Foundation Architecture: Technical Reference Model - extending the model as necessary to fit the classification of technology products in use.

HOPEX TOGAF.