The size and level of complexity of a resource.
The level of granularity of a resource is generally refered to as a marker of how many items that resource comprises.
A resource of the lowest level of granularity would be a single piece of text or an individual image. A resource made up of several images, pieces of text, interactive questions and an animation would have a fairly high level of granularity.
This term is applied fairly loosely, and there is no exact way to describe the level of granularity of a resource.
The level of granularity of a resource can affect the way in which it might be described, and how it might be re-used.
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