Authorization management is necessary because all clients/systems operating within a given SLA may not be allowed to have equal access to data
User and role modelling
Authorization is managed on the SLA level. Each connecting system/client may be assigned an identity (a user) having a number of roles, corresponding to the different operations in the bit repository. Each identity/user is assigned a certificate, which may be revoked in case it is compromised. Message xml bodies are signed or encrypted using a user/identitys certificate, ensuring authenticity