IMS Learning Tools Interoperability (LTI) v1.0 provides a single framework or standard way of integrating rich learning applications -- in LTI called Tools -- with platforms like learning management systems, portals, or other systems from which applications can be launched—called Tool Consumers.
The basic use case behind the development of the LTI specification is to allow the seamless connection of web-based, externally hosted applications and content, or Tools (from simple communication applications like chat, to domain-specific learning environments for complex subjects like math or science) to platforms that present them to users. In other words, if you have an interactive assessment application or virtual chemistry lab, it can be securely connected to learning/course management systems, portals, etc. in standard ways without having to develop and maintain custom integrations.
The Benefits of LTI
Basic LTI
Basic LTI is a subset or profile of the full LTI v1.0 specification and is now in Final Release, ready for adoption here. Basic LTI conformance testing for LMSs and applications is available through the CC & LTI Alliance. A list of conformant systems and applications is available here.
What are the differences between Basic LTI and LTI v1.0?
LTI and Common Cartridge
LTI complements the Common Cartridge standard with access to rich, web-based applications or Tools embedded into cartridges with active, authenticated links back to the centrally hosted content. High stakes or premium content can be integrated into specific learning contexts and support the retrieval of results, making the value of eBooks and online content a reality.
Participants

The Charter
The IMS Technical Board approved the Learning Tools Interoperability Charter in March 2007. IMS GLC Community Members may download a copy of the charter.
Join in the discussion about Basic LTI on the IMS Public Community forum.
Further Information
For information on Learning Tools Interoperability, please contact us.