Hi all, With Olivier Barais, in CC, with which I am working on the OCCIware project, we would like to enhance the core specification with a way to constrain the Category of resources pointed out by occi.core.src and occi.core.target attributes of a link. For instance, in the infrastructure extension, while it is specified (and easily make sense) a NetworkInterface link must be linked to a compute and a network instance, there is no formal way to define this constraint. A proposal would be to add new type of Category, sub-type of Kind, with following attributes: - parent: instantiated as http://schemas.ogf.org/occi/core#link - occi.core.src.type: additional attribute, type category id - occi.core.target.type: additional attribute, type category id The name of this type of Category could be "TypedLinkKind". What do you think of this ? Regards, -- Jean Parpaillon -- Open Source Consultant OW2 Technology Council Chairman Director @ OW2 Consortium OCCIware Strategic Orientation Committee Chairman Research Engineer @ Inria -- Phone: +33 6 30 10 92 86 im: jean.parpaillon@gmail.com skype: jean.parpaillon linkedin: http://www.linkedin.com/in/jeanparpaillon/en