Link: What is IEEE Learning Object Metadata (pdf).

A CETIS briefing paper on the IEEE 1484.12.1 – 2002 Standard for Learning Object Metadata, a standard for the description of “learning objects”. IEEE 1484.12.1 is the first part of a multipart standard, and describes the LOM data model. The LOM data model specifies which aspects of a learning object should be described and what vocabularies may be used for these descriptions; it also defines how this data model can be amended by additions or constraints.

[pdf http://publications.cetis.org.uk/wp-content/uploads/2011/02/WhatIsIEEELOM.pdf]