| An Object-Oriented Abstract Class. |
| •owl:Thing |
| •sec:OOSoftwareComponent |
| •sec:OOClass |
| •sec:OOAbstractClass |
Class(sec:OOAbstractClass partial sec:OOClass
restriction(sec:hasMethodSignature allValuesFrom(sec:OOMethodSignature)))
DisjointClasses(sec:OOAbstractClass sec:OOMethodSignature)