One of the barriers to exchanging data is often that parties do not know each other sufficiently, and therefore are not able to share data. Often this can only be done after some form of contract has been established. 

Within the iSHARE network, it is the explicit aim to make it possible to exchange data for parties that are unknown to each other based on delegations. A delegation within iSHARE functions as evidence that a party is directly or indirectly operating in name of a known party. Based on the delegation a certain (unknown) party has given, a party can decide if this party may receive certain data or not. 

Example:

This example is detailed under use cases.