changed:
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Lexicon:

 * Object Class (Type of object)

 * Object Instance (A particular Object on a canvas)

 * A unit is a part of a module.

 * A module will contain 2 or 4 units. 

 * Each unit in a module covers a different theme.

 * Each module is covered by a single WorkThroughProjectIdeas

 * A workThrough is a project that covers at least two themes.

 * A theme is either SINP (Sound, Image, Networks, Physical Media)

 * There are multiple levels of units, level 1 for intro and so on.

Example:

 Sunset is the workThrough

  * It has a single module

  * It has four units, S.I.N.P.

  * It is introductory.

  * It would then contain the following units: S1 I1 N1 P1