OASC Minimal Interoperability Mechanisms (MIMs)

Minimal Interoperability Mechanisms (MIMs) are universal tools for achieving interoperability of data, systems, and services between cities and suppliers around the world. Because the mechanisms are based on an inclusive list of baselines and references, they take into account the different backgrounds of cities and communities and allow cities to achieve interoperability based on a minimal common ground.

Implementation can be different, as long as crucial interoperability points in any given technical architecture use the same interoperability mechanisms. The MIMs are vendor-neutral and technology-agnostic, meaning that anybody can use them and integrate them in existing systems and offerings.

Today we find number of implementations, plaforms and services that adhere to these MIMs.

There are three adopted MIMs. For context and governance you can visit this page Context & Governance.



Interoperability Point




Interoperability Point



OASC Context Information Management

Context Information Management API

This API allows to access to real-time context information from different cities


OASC Data Models

Shared Data Models

ls Guidelines and catalogue of common data models in different verticals to enable interoperability for applications and systems among different cities.


OASC Ecosystem Transactions Management

Marketplace API

The Marketplace API exposes functionalities such as catalogue management, ordering management, revenue management, Service Level Agreements (SLA), license management, etc. Complemented by marketplaces for hardware and services.

This space captures the latest status of the MIMs and provides an up-to-date overview of their development.