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Exploring the informal translation of OMT object models in B (2003)
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BibTeX
@MISC{Polack03exploringthe,
author = {Fiona Polack},
title = {Exploring the informal translation of OMT object models in B},
year = {2003}
}
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Abstract
Class connotation Because SEQUENCER is an abstract class, its objects must be either SCENE s or CUE s (this is modelled in the machine HIERSEQ , below). The operations of SEQUENCER become part of the operations of these objects, and have no independent status. Thus, for example, the DeleteScene operation in the SCENE machine deletes only the scene; the parent sequencer is deleted in the calling machine, HIERSEQ , which forms the interface to the hierarchy. The subclasslevel operations are defined as partial addition and deletion operations at this level to simplify the proof obligations: the proof of the partial operations is reused by the B Tool in discharging the proofs on the whole hierarchy.
