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iSHARE Trust Framework functional description
The iSHARE Trust framework was first explained under use cases. It consists of six roles that, depending on the situation, interact with each other based on the Trust Framework agreements. Each role has a certain function in the Framework and bears certain responsibilities. To fulfil any other role in the Framework, a party must fulfil specific admittance criteria, as explained.
The Scheme Owner-role is fulfilled by the legal entity that governs the iSHARE Trust Framework and its participant network. To be admitted, one must first be admitted to the data space/network by a Satellite and must then sign an accession agreement with the Satellite. The fact that every legal entity fulfilling a role in the iSHARE Trust Framework agrees to the rules - as proven by its agreement with the Satellite - creates trust between parties in the data space/iSHARE network.
In order to know whether a party is an iSHARE participant before sharing data with it, the Satellite can be asked about this party's adherence/certification (as detailed in secondary use case 5a). This is not reflected in the primary use cases because every relation or interaction within iSHARE is build upon the Framework. The Framework used to depict use cases was already are presented as follows:
It was stated that all of iSHARE's use cases can be depicted in the above framework. 
Their complexity is dependent on:
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