Hi all, I am in the situation that I would like to have a simple Endpoint published within a ComputingService. However, besides UML inheritance might allow this, the hierarchic xsd schema does not allow that, it only allows ComputingEndpoints to be nested within ComputingServices. I don't know it this is good or bad; for you to understand how I got here, I can give you this little problem to solve: Suppose the same machine hosts two RELATED services, that is, one needs the other one for proper functionality. For example a delegation service is needed to submit a job to a job execution service. Is there a way for an information consumer to infer/understand this relationship? Can a client understand that (1) the services are related and (2) that they are running in the same machine just by looking at the GLUE2 records? One might think of associations, but it can easily be shown that they don't solve the problem. We don't really have service-to-service associations, just some kind of hierarchy between services. What do you think? -- Florido Paganelli Lund University - Particle Physics ARC Middleware EMI Project