# Establish Parties in Trust Ecosystem

## Overview - Trust Chain definition[​](https://hub.ebsi.eu/get-started/design/trust-chain#overview---trust-chain-definition) <a href="#overview---trust-chain-definition" id="overview---trust-chain-definition"></a>

By completing this subsection, you will:

* Identify all actors and map out their roles and relationships.
* Define the rules and policies of your use case.
* Define the legal identities involved.
* Understand how to set up DIDs for your entities
* Define accreditations issued by the Trusted Accreditation Organisation.

\<todo>