chap01 - Chapter 1 Object Oriented System Development with...

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Object-Oriented Application Development Using VB .NET 1 Chapter 1 Object Oriented System Development with VB .NET
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Object-Oriented Application Development Using VB .NET 2 Objectives In this chapter, you will: Learn about OO development and VB .NET Understand object-oriented concepts Recognize the benefits of OO development Preview the approach this book uses to teach you OO development
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Object-Oriented Application Development Using VB .NET 3 Introduction Object-oriented information system development involves analysis, design, and implementation of information systems using: Object-oriented programming languages Object-oriented technologies Object-oriented techniques Object-oriented information system development is usually referred to as “OO” or as “the OO approach” Valued Gateway Client:
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Object-Oriented Application Development Using VB .NET 4 Introduction When developing business systems, OO means using an: Object-oriented approach to system analysis (OOA) Object-oriented approach to system design (OOD) Object-oriented approach to programming (OOP)
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Object-Oriented Application Development Using VB .NET 5 Understanding OO Development and VB .NET The object-oriented approach defines a system as a collection of objects that work together to accomplish tasks The objects can carry out actions when asked Each object maintains its own data
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Object-Oriented Application Development Using VB .NET 6 Understanding OO Development and VB .NET The procedural approach defines a system as a set of procedures that interact with data The data are maintained in files separate from the procedures When the procedure executes, data files are created or updated
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Object-Oriented Application Development Using VB .NET 7 Understanding OO Development and VB .NET
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Object-Oriented Application Development Using VB .NET 8 Object-Oriented Programming Object-oriented programming started in the 1960s with the development of the Simula programming language A major milestone in the history of OO was the development of the SmallTalk programming language in the early 1970s Additional object-oriented programming languages include Objective-C, Eiffel, and most notably C++
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Object-Oriented Application Development Using VB .NET 9 Object-Oriented Programming In 1995, Sun Microsystems introduced Java as a pure OO language, which has: Syntax similar to C++ Features that make it appropriate for Internet applications Microsoft immediately released a version of Java called J++
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Object-Oriented Application Development Using VB .NET 10 Object-Oriented Programming Microsoft recently released a more direct competitor to Java as part of the .NET framework, named C# With the release of VB .NET, Microsoft hopes to dominate OO and Web-based development
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Object-Oriented Application Development Using VB .NET 11 The Microsoft .NET Framework and VB .NET The .NET framework has two main components:
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chap01 - Chapter 1 Object Oriented System Development with...

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