4.4.1. Model Manipulation Rule

4.4.1. Model Manipulation Rule
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	Description
	In VIATRA, standard ASM rules are extended with rules for manipulating the model space.

	Syntax
ModelManipulationRuleAST ::= CreateRuleAST \| DeleteRuleAST \| CopyRuleAST \| MoveRuleAST \| ElementUpdateRuleAST The rules introduced in this section are special extensions to the ASM language. They provide an interface to the model space to allow creation (create rule, copy rule), change (move rule, element update rule), or deletion of model elements (delete rule).

Syntax

ModelManipulationRuleAST ::= CreateRuleAST | DeleteRuleAST | CopyRuleAST 
                           | MoveRuleAST | ElementUpdateRuleAST

The rules introduced in this section are special extensions to the ASM language. They provide an interface to the model space to allow

Remarks. Most model manipulation operations can also be carried out by graph transformation rules.