1. A machine implemented method for generating trust policy rule inputs, comprising: accessing data from a tangible machine readable medium representative of a model of a process, the model being in a format of a Business Process Modeling Notation (BPMN) choreography process; identifying, from the model of the process, a set of participating entities, wherein each participating entity is to participate in the process; identifying a set of choreography tasks conducted between the participating entities; identifying an initiating entity for each choreography task in the set of choreography tasks, and a corresponding participating entity for that choreography task; and storing data in a tangible computer readable medium indicating a trust relationship between the corresponding entity and the initiating entity, to be materialized by trust policies implemented by respective domains of the corresponding entity and the initiating entity.