wiki:SimpleSequencing

The SCORM 2004 Sequencing and Navigation model is the newest and most complex part of SCORM. It relies on the IMS Simple Sequencing specification and enables the precise declaration of a flow logic, controlling the learner's path from one SCO to the next. This capability to supports common instructional design strategies such as testing a learner's understanding of a topic and appropriately directing the learner towards more complex or remedial material.

The model has a declarative component consisting of special sequencing meta-data added to learning activity nodes in the CAM activity tree. This meta-data may indicate default navigation constraints such as only allowing the learner to navigate in a forward (next) direction or allowing the leaner to freely select any activity from a set of activities. The meta-data may also indicate sequencing rules in which a trigger such as an activity having been previously attempted or having its objective mastered can result in an action such as the activity being skipped or retried.

The model has a run-time component in which navigation requests and learner performance information communicated by a SCO are processed by a sequencing engine that evaluates the information in light of previously communicated performance information and the declared sequencing meta-data to determine the next SCO that will be delivered to the leaner.

SCORM 2004 introduces a small data model to allow a SCO to communicate navigation requests such as continue, previous, exit to a run-time service. This is as close as SCORM comes to addressing the problem of a standard set of user interface controls.

adapted from "SCORM as Technical Framework for Web-based Learning" (http://www.w3.org/2004/04/webapps-cdf-ws/papers/SCORM.htm)

Last modified 10 years ago Last modified on 2009-05-22T06:12:12+09:00