Lifecycle Manager allows for bi-directional synchronization of Documents (commonly Requirements) between itself and Modeler through functionality in Modeler. The integration must be selected during installation of Modeler and there is some setup on the ILM side to create fields to store the integration metadata on the ILM side. All of this is documented in Modeler. The use case is commonly to pull Requirements managed in ILM into Modeler for further functional and structural decomposition via SysML and UML paradigms. Conversely, Model elements can be "surrogated" inside of ILM for traceability, and the traces can be sync'ed as appropriate.
Requirements connector does not have any out of box integrations with other Integrity products; however, all the tools have API's or web service interfaces so an integration is possible. Requirements connector by design is a standalone tool that connects to ILM and Doors to bidirectionally push data between those two systems or conversely can be used between two doors systems or two ILM systems or any system that supports the REQIF format.
Each tool is a standalone installation.