Principles of Object-Oriented Software Development Software Development Projects

gambling machine interactive video game (Coplien, 1992) simple hypermedia system (Meyrowitz, 1986) direct manipulation score editor (Pope, 1991) an object-oriented expert system (Hu, 1989) 3D animation editor (Ammeraal, 1992) a simple case tool (Coad and Yourdon, 1991b) route planner

Idioms and Patterns Introduction Polymorphism Idioms in hush A catalogue of design patterns Event-driven computation Summary Q/A Literature

Summary

Questions 1.How would you characterize OOP and what, in your opinion, is the motivation underlying the introduction of OOP? 2.Characterize the most important features of OOP. 3.Explain the meaning of the phrase "object orientation reduces the complexity of programming." 4.How would you characterize contracts? Why are contracts important? 5.How is OOP related to programming languages? 6.What classes of languages support OOP features? Explain. 7.What influence is an object-oriented approach said to have on the software life-cycle? What is your own opinion? Discuss the problem of maintenance. 8.How would you characterize software quality? 9.Mention a number of object-oriented programming languages, and give a brief characterization. 10.What do you see as the major challenges for research in object- orientation?

Further reading Nowadays there are many books that may serve as a starting point for reading about OO. Dependent on your interest, you may look at [Surviving], which treats issues of OO project management, [Meyer97], which gives an extensive introduction to design by contract and programming in Eiffel, or [Fowler97], which gives a succinct introduction to UML. Alternatively, you may take one of the introductory programming books for Java, from which you will almost certainly learn something about OO as well.