Full Data Model

SCORM 2004 includes a very extensive set of run-time variables that can be set and read by the content. The full data model includes reading and writing of comments, saved values, objectives, comments and other information.

This implementation supports the full Data Model. All writable elements are available, with default values as specified. All readable elements are available as well. Errors are properly provided for attempts to access uninitialized elements, to set read-only values and to read write-only values.

There are certain limitations in this implementation that does not affect properly behaving SCORM 2004 content from running correctly. If the SCO can pass the ADL validation suite for content, then it runs on the SCORM 2004 RTE on Skillport. There are certain limitations that affect poorly behaved SCOs (see below).

Manifest Attributes

There are a large number of SCORM-specified attributes and values for nodes in the XML representation specified as part of the organization for a SCO. Given that this implementation only provides single-SCO specifications, many of these attributes are meaningless or useless for Skillport.

In general, if the tag in the SCORM specification starts with the adlcp prefix, it is supported.
In general, if the tag in the SCORM specification starts with the imsss prefix, it is not supported.

cmi.time_limit_action Data Element

The cmi.time_limit_action data element contains the value specified by the manifest-defined value <adlcp:timeLimitAction>.
The Skillport SCORM 2004 RTE solution correctly initializes this data element from the manifest.
It is stored in the SPCSF file as _timeLimitAction. Skillport does not do anything with this value other than make it available to the SCO.

cmi.completion_threshold Data Element

The cmi.completion_threshold data element contains the value specified by the manifest-defined value <adlcp:completionThreshold>.
The Skillport SCORM 2004 RTE solution correctly initializes this data element from the manifest.
It is stored in the SPCSF file as _completionThreshold.

cmi.launch_data Data Element

The cmi.launch_data data element contains the value specified by the manifest-defined value <adlcp:dataFromLMS>.
The Skillport SCORM 2004 RTE solution correctly initializes this data element from the manifest.
It is stored in the SPCSF file as _dataFromLMS.