Algebraic Specification Techniques in Object Oriented Programming Environments

The main aim of this monograph is to provide a framework for
the integrated design of object-oriented programs with
algebraic specification techniques. The design method
pursued relies fundamentally on the structuring of systems
based on the notion of data types. Depending on the level of
abstraction, data types are described in an object-oriented
way by algebraic specifications or by machine-executable
object-oriented programs. The treatment involves two main
aspects. First, object-oriented programs have to be related
by a notion of correctness that models the transition from
specifications to program implementations. The author
presents a notion of correctness which relies on the idea of
abstraction functions. Second, in order to obtain an
integrated design environment, a uniform structuring concept
for object oriented programs and algebraic specifications
has to be provided. Inheritance, subtyping and clientship
are three central notions of object-oriented structuring.
Theauthor uses them to develop the kernel of a typed
object- oriented programming language. The monograph
provides the formal foundation for a unified framework of
algebraic specifications and object-oriented programs. A
major guideline is the development of a design method
supporting the structured design and reuse of software in
this environment.