There are many elements that make up the data model.

data model element	Function
Comments from Learner	Contains text from the learner.
Comments from LMS	Contains comments and annotations intended to be made available to the learner.
Completion Status	Indicates if the learner has completed the SCO.
Completion Threshold	Identifies a value against which the measure of progress the learner has made toward completing the SCO can be compared to determine if the SCO should be considered completed.
Credit	Indicates if the learner will be credited for performance in the SCO.
Data Model Version	Determines the data model version supported by the LMS.
Entry	Contains information to indicate if the learner has previously accessed the SCO.
Exit	Indicates how or why the learner left the SCO.
Interactions	Defines information pertaining to an interaction for the purpose of measurement or assessment.
Launch Data	Provides data specific to a SCO used for initialization.
Learner Id	Identifies the learner for whom the SCO instance was launched.
Learner Name	Represents the name of the learner.
Learner Preference	Specifies preferences associated with the learners use of the SCO.
Location	Represents a location in the SCO.
Maximum Time Allowed	Indicates the amount of accumulated time the learner is allowed to use a SCO in an instance.
Mode	Identifies the modes in which the SCO may be presented to the learner, such as browse, review and normal.
Objectives	Specifies learning or performance objectives associated with a SCO.
Progress Measure	Identifies a measure of the progress the learner has made toward completing the SCO.
Scaled Passing Score	Identifies the scaled passing score for a SCO.
Score	Identifies the learners score for the SCO.
Session Time	Identifies the amount of time that the learner has spent in the current instance of the SCO.
Success Status	Indicates if the learner has mastered the SCO.
Suspend Data	Provides information that may be created by a SCO as a result of a learner accessing or interacting with the SCO.
Time Limit Action	Indicates what the SCO should do when the maximum time allowed is exceeded.
Total Time	Identifies the sum of all the learners session times accumulated in the current learner attempt prior to the current learner session.