Towards a uniform Service Catalog definition
Major product and service companies in the ITSM space have announced a collaborative effort to define standards for service portfolios and catalogs.
ITIL v3 introduced service portfolio, catalog, and request processes, which are the bedrock of the ITIL framework. However, there are no standard definitions of what constitutes a service, how to define and measure a service catalog etc.
The SPACL (The Service Portfolio and Catalog Language) Standards Consortium (www.spacl.info) is a consortium formed by BMC Software Inc, Frontrange, IBM, NewScale, and Planview to formally develop a standard that is implementation-independent, open and interoperable.
The SPACL publications are still in early draft stage and open for feedback. You can download them here