Mike Loeffler, Systems Engineering IT specialist at General Moters, describes results of ongoing work to evaluate interoperability between Teamcenter and various tools from the Application Lifecycle Management (ALM) domain, using the emerging Open Services for Lifecycle Collaboration (OSLC) Standard. The standard is already in use to enable collaboration between Change Management, Requirements Management, Source Code Control and other ALM domain tools. To support a complex Mechatronic product (i.e. an Automobile), the standard must also support collaboration with PLM domain tools. Development of this connector has exposed the need for OSLC extensions to cover concepts such as Product Definition and Structure, Effectivity and Variants.