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<b:Sources SelectedStyle="" xmlns:b="http://schemas.openxmlformats.org/officeDocument/2006/bibliography"  xmlns="http://schemas.openxmlformats.org/officeDocument/2006/bibliography" >
<b:Source>
<b:Tag>brucker:interactive:2007</b:Tag>
<b:SourceType>Report</b:SourceType>
<b:Institution>ETH Zurich</b:Institution>
<b:Year>2007</b:Year>
<b:Month>mar</b:Month>
<b:Author>
<b:Author><b:NameList>
<b:Person><b:Last>Brucker</b:Last><b:First>Achim</b:First><b:Middle>D</b:Middle></b:Person>
</b:NameList></b:Author>
</b:Author>
<b:Title>An Interactive Proof Environment for Object-oriented Specifications</b:Title>
<b:Comments>We present a semantic framework for object-oriented specification languages. We develop this framework as a conservative shallow embedding in Isabelle/HOL. Using only conservative extensions guarantees by construction the consistency of our formalization. Moreover, we show how our framework can be used to build an interactive proof environment, called HOL-OCL, for object-oriented specifications in general and for UML/OCL in particular. Our main contributions are an extensible encoding of object-oriented data structures in HOL, a datatype package for object-oriented specifications, and the development of several equational and tableaux calculi for object-oriented specifications. Further, we show that our formal framework can be the basis of a formal machine-checked semantics for OCL that is compliant to the OCL 2.0 standard. </b:Comments>
</b:Source>
</b:Sources>