A Design has a name and contains Rules.
For example, in a later Unit, you'll create a TableTop design that has a Mixin (see next topic), Block. The Block Mixin Design contains built-in rules for the following, among others:
•Length
•Width
•Height
•Position
•Volume
You can (and will soon) create Rules of your own.
Rules exist in certain Contexts. A given Context determines which rules can be edited and where they apply. The most common Contexts are those of Design Rules and Child Rules. Model Rules have a special purpose and you will learn about this much later.
One of the minor objectives of this Guide is to call out which Context a given Rule creation or edit to use, whenever possible. Editing in the wrong Context can create problems in a Project.
Training on Rules. (next Unit)