software system / oil level / software engineering form / oil leak / close catalyst request service oil level bell ringing / chemical reactor problem / close catalyst oil level / software development problems / software developer / !oil level / software development / chemical reactor / /
Organization
Open University / /
Person
Jon G. Hall Lucia Rapanotti Michael / /
Position
Chemical Reactor Controller / software developer / /
Software and Systems Modeling Volume 4 Number 2, pages, MayProblem frame semantics for software development Jon G. Hall Lucia Rapanotti Michael Jackson The Open University Milton Keynes