Preface - Preface B orn in the ice-blue waters of the...

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Unformatted text preview: Preface B orn in the ice-blue waters of the festooned Norwegian coast; amplified (by an aberration of world currents, for which marine geographers have yet to find a suitable explanation) along the much grayer range of the Californian Pacific; viewed by some as a typhoon, by some as a tsunami, and by some as a storm in a teacup a tidal wave is hitting the shores of the computing world. Object-oriented is the latest in term, complementing and in many cases replacing structured as the high-tech version of good. As is inevitable in such a case, the term is used by different people with different meanings; just as inevitable is the well-known three-step sequence of reactions that meets the introduction of a new methodological principle: (1) its trivial; (2) it cannot work; (3) thats how I did it all along anyway. (The order may vary.) Let us have this clear right away, lest the reader think the author takes a half-hearted approach to his topic: I do not see the object-oriented method as a mere fad; I think it is not trivial (although I shall strive to make it as limpid as I can); I know it works; and I believe it is not only different from but even, to a certain extent, incompatible with the techniques that most people still use today including some of the principles taught in many software engineering textbooks. I further believe that object technology holds the potential for fundamental changes in the software industry, and that it is here to stay. Finally, I hope that as the reader progresses through these pages, he will share some of my excitement about this promising avenue to software analysis, design and implementation. Avenue to software analysis, design and implementation. To present the object- oriented method, this books resolutely takes the viewpoint of software engineering of the methods, tools and techniques for developing quality software in production environments. This is not the only possible perspective, as there has also been interest in applying object-oriented principles to such areas as exploratory programming and artificial intelligence. Although the presentation does not exclude these applications, they are not its main emphasis. Our principal goal in this discussion is to study how practicing software developers, in industrial as well as academic environments, can use object technology to improve (in some cases dramatically) the quality of the software they produce. PREFACE vi Structure, reliability, epistemology and classification Object technology is at its core the combination of four ideas: a structuring method, a reliability discipline, an epistemological principle and a classification technique....
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Preface - Preface B orn in the ice-blue waters of the...

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