Antipattern-Analyzer for Meta-Models

Currently supported Metrics:

• Number of Classes
• Counting Complexity (number of all attributes, references, supertyp relations and operations)
• Conversion to a Hypergraph
  • counting nodes
  • counting hyperedes
  • calculating entropy

Currently supported Anti-Pattern:

• Class Has More Than One ID see here
• Malformed Multiplicity Element
  • complete, triggers on [*,y] or [x,y] with x > y
  • restricted, triggers only on [x,y] with x > y
• Unnamed Element see here
  • complete, an ENamedElement has null or empty string as name
  • only not Packages, an ENamedElement which is not an EPackage has null or empty string as name
• Enumeration Has Attributes see here
  • an EEnumeration has an EAttribute as one of its contents
• Reference Has No Type see here
  • slightly variation only for EReference and EAttribute
  • excluding e.g. EOperations which are ETypedElements but might represent a procedure/"void"
  • element has no type
• Diamond Inheritance
  • DiamondBottom -> DiamondLeft -> DiamondTop
  • DiamondBottom -> DiamondRight -> DiamondTop
  • -> DiamondBottom triggers the antipattern
• Class Not In Package Contained
  • an EClass is not contained in any EPackage
• Multiple Possible Containers
  • an instance of an EClass can be contained in multiple different containers (not at the same time though)