====== Item Association ======


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====== Item Association ======

//
Item Type Association refers to the structure of how the Building Blocks of your application are grouped together.// 

Item Type Assocation is often referred to in a way that is not technically correct: "Item Association".  This is because Blocks are never associated with an Item but with an Item Type.  Item Association is very different from [[start:in_context|context]].

For the most part, this structure exists to facilitate logical search and retrieval of existing Building Blocks, or extraction/merger of Building Blocks from/into your application.

The general structure of all applications is as follows;

  - Application
  - Item Types
  - All other blocks, //__associated with the above Item Types__//.

It is possible for a Building Block to be associated with more then one item type, although the need for this should be rare.

Typically, an Item Type Association is made at the time a new Building Block is created, and this is usually performed automatically based on the [[start:in_context|context]] in which the new Building Block is created.  In other words, if context dictates that a new Block is "about" a particular Item of some Type, then WorkXpress will automatically "associate" this new Block with that same Item Type.

Item Type Association can be changed, usually from within the [[start:block_editor|Block Editor]] tool.

See also: [[start:in_context|Context]]