'''Learning Tools Interoperability''' ('''LTI''') is an education technology standard developed by the IMS Global Learning Consortium which specifies a method for a learning system to invoke and to communicate with external systems. <ref name="IMS">{{cite web|url=http://www.imsglobal.org/toolsinteroperability2.cfm |title=Learning Tools Interoperability |publisher=IMS Global |date= |accessdate=2015-09-07}}</ref>. For example, a [[Learning Management System]] (LMS) may use LTI to host course content and tools provided by external, third-party systems, without requiring a learner to log in separately on the external systems, while still allowing information about the learner and the learning context to be transmitted by the LMS to the external systems.