On 16 January 2019, the OASC Council of Cities have adopted officially the following mechanisms as OASC Minimal Interoperability Mechanisms (OASC MIMs).

Minimal Interoperability Mechanisms (MIMs) are universal tools for achieving interoperability of data, systems, and services between cities and suppliers around the world. They allow cities to achieve interoperability based on a minimal common ground. Implementation can be different, as long as the architecture use the same interoperability mechanisms. The MIMs are vendor-neutral and technology-agnostic, meaning that anybody can use them.

See the current work on MIMS: Y.MIM Overview | OASC MIMs 2024 (oascities.org)