Executable concepts

We call executable such concepts that can be specified by some expressions and calculated. In modeling tools developed by No Magic, executable are:

• Validation rules - that are predefined or custom constraints having a purpose to validate a model or particular model elements.
• Derived properties - properties that are automatically calculated from the other properties.
• Smart packages - that are special collections of model elements.
• Executable opaque behaviors - reusable expression fragments callable form other executable concepts.
• Metric definitions - calculate aggregate parameters of models.
• Macros - a script that is created using a particular script language. With the help of macros, you can control items that are allowed in Developer Guide.
• Opaque behaviors - a behavior with implementation-specific semantics. 

In a modeling tool, executable concepts are defined in one of the languages that our modeling tool can evaluate:

• StructuredExpression - a graphical way to construct expressions out of predefined blocks. 
• Object Constraint Language.
• Binary - an expression that is written in Java, compiled and added to our modeling tool with a plugin.
• One of the following scripting languages:

• • Groovy
  • JRuby
  • JavaScript
  • JavaScript Rhino
  • Jython

You can test and evaluate your expressions with the help of the Expression Evaluation tool.