• QueryDescription

Each query can have a description to be shown on the java part.

   query_description(+queryName,+queryType, +Description).
   e.g.  query_description(nopSmell,smell,'empty statement').

• Smell

  smell(+smellName,-ListOfStatementIDs)

• Metric

   metric(+metricName, -ID,-ComputedMetric). 
   metric_attributes(+metricName, +Range, +Threshold)

• Dependency (This fits neither as a smell nor metric)

  dependency_package(DependentId,DependeeId, SccNumber,DependencyDegree).
  dependency_class(DependentId,DependeeId,DependencyDegree).
  dependency_term(DependentId,DependeeId, DependentTerms).

• TermMetric

  termmetric(+metricName,?Scope,-ID, - [ [Term,ComputedMetric,IsIntroduced] ]).

• TermQuery

  Each differ in syntax, all start with termquery(+queryName,..).

• ArchitectureQueries

• Inheritance/Implementation

  inheritance(ClassId,SuperClassId).
  implements(ClassId,SuperClassId).