Shareable Content Object Reference Model (SCORM) is a collection of standards and specifications for web-based electronic educational technology (also called e-learning). It defines communications between client side content and a host system (called “the run-time environment”), which is commonly supported by a learning management system. SCORM also defines how content may be packaged into a transferable ZIP file called “Package Interchange Format.”

SCORM is a specification of the Advanced Distributed Learning (ADL) Initiative from the Office of the United States Secretary of Defense.

SCORM 2004 introduced a complex idea called sequencing, which is a set of rules that specifies the order in which a learner may experience content objects. In simple terms, they constrain a learner to a fixed set of paths through the training material, permit the learner to “bookmark” their progress when taking breaks, and assure the acceptability of test scores achieved by the learner. The standard uses XML, and it is based on the results of work done by AICC, IMS Global, IEEE, and Ariadne.

SCORM was designed to be web-based and utilizes JavaScript to facilitate communication between the client side content and the run-time environment. Each SCORM version specifies the methods that the run-time environment should support and how those methods should behave. Content launched by the run time environment can then call those methods utilizing JavaScript.