SCORM explained to teachers
Inside SCORM - Key concepts
CAM - Metadata
Metadata describes what the content is, who owns it, what costs (if any) are associated with it, technical requirements, educational purpose, etc.
Metadata tags provide information about content to help search for and discover content over the Internet or within content repositories.
In fact, the CAM also defines how to code the tags in machine (and human) readable formats (e.g. via XML).