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Unused Languages

Motivation

We want to see which parts of a language are used in a set of models / modules or in a project. This information if important for assessing the coverage of tests / documentation or simply understanding which parts of a language are not used by the users or are not needed anymore.

Features

The following analyses can be performed:

  • identify not instantiated concepts
  • identify not used properties, children or references
    • properties
      • boolean properties for which all concept instances have TRUE or FALSE value
      • integer properties for which all concept instances have only one value
      • string properties for which all concept instances have only one value
      • enumeration properties for which all concept instances do not cover all possible values
    • children
      • with cardinality 0..1 or 0..n for which all concept instances have no child in this role
      • with cardinality 1..n or 0..n for which all concept instances have one child in this role
    • references
      • with cardinality 0..1 for which all concept instances have no reference in this role

Usage of Unused Language Detection

  1. Create a model and import the language org.mpsqa.lancov
  2. For identifying unused concepts add a new root node uninstantiated concepts analysis
    1. Fill in the needed information and run by pressing Alt-Enter
  3. For identifying unused fields add a new root node unused concepts fields analysis
    1. Fill in the needed information and run by pressing Alt-Enter