A SCO is a collection of one or more Assets that represent a single launchable learning resource that utilizes the SCORM RTE to communicate with an LMS.

• SCO是由Asset组成的，SCO与Asset最大的不同在于SCO是与LMS（Learning Management System）进行通讯的，在LMS看来，SCO是一个基本的不可分割的学习资源。