n Software Development and NET in Visual Basic .NET

Making QR Code JIS X 0510 in Visual Basic .NET n Software Development and NET
1 n Software Development and NET
Draw QR Code JIS X 0510 In VB.NET
Using Barcode encoder for Visual Studio .NET Control to generate, create Denso QR Bar Code image in VS .NET applications.
There are almost as many variations of the SD life-cycle as there are software developers This is less a feature of the richness of the available knowledge about software development as it is an indication of how immature the eld is As yet, no one has been able to demonstrate unequivocally that one approach to organizing the software development process is any better than the many alternatives The only real consensus is that software development follows a life-cycle That is, a software project is born, goes through a number of distinct stages, and nally comes to an end (or dies) Contrary to what you might expect, the act of programming is only a small portion of the SD life-cycle Most formal software projects go through a number of phases before programming begins, and then continue through several other phases after programming has been completed Even in an unstructured environment where undisciplined developers go directly to the programming phase, much of the time will be spent doing things other than programming The remainder of the life-cycle involves activities that are at least as important as, and often more important than, programming Most practitioners agree that a life-cycle will involve some or all of the following phases:
Bar Code Encoder In VB.NET
Using Barcode maker for Visual Studio .NET Control to generate, create bar code image in VS .NET applications.
n n n n n n n n n n
Making QR In C#.NET
Using Barcode creator for .NET Control to generate, create Quick Response Code image in .NET applications.
feasibility study/concept analysis requirements gathering and analysis requirements speci cation software speci cation structural design/architectural design detailed design implementation/coding and debugging testing installation maintenance
Create Denso QR Bar Code In Visual Studio .NET
Using Barcode maker for ASP.NET Control to generate, create Quick Response Code image in ASP.NET applications.
Some of these phases will contain sub-phases (eg testing will often be implemented as a number of phases: speci cation testing, unit testing, integration testing, pre-acceptance testing, acceptance testing) Functionally, the list of phases can be broken down into ve broad steps:
QR Code ISO/IEC18004 Encoder In .NET Framework
Using Barcode encoder for Visual Studio .NET Control to generate, create QR Code JIS X 0510 image in .NET framework applications.
n n n n n
Barcode Generator In Visual Basic .NET
Using Barcode creation for .NET framework Control to generate, create bar code image in .NET framework applications.
nding out what the software is to do (requirements analysis); designing a system to do it (system design); building the system ( programming, or implementation); verifying that what has been built does what is required (testing); and nally installing, maintaining and supporting the system during its operational life (maintenance)
Bar Code Printer In VB.NET
Using Barcode maker for Visual Studio .NET Control to generate, create barcode image in Visual Studio .NET applications.
Whatever type of software system we develop, and whatever development style we choose to use, we will have to consider all of these stages in some form or other It is the aim of this book to describe object-oriented programming in some detail, and
Code-39 Creator In Visual Basic .NET
Using Barcode generation for Visual Studio .NET Control to generate, create Code 3/9 image in VS .NET applications.
12 The Life-Cycle Approach
Code 128 Code Set C Generator In VB.NET
Using Barcode creation for .NET framework Control to generate, create Code 128C image in .NET applications.
to describe enough of an object-oriented design method to allow you to take a speci cation and develop software to ful l it We should start by putting these activities into a context
Drawing ECC200 In Visual Basic .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create Data Matrix 2d barcode image in Visual Studio .NET applications.
121 Software Life-Cycle Models
Bar Code Generation In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create barcode image in ASP.NET applications.
Once we have agreed that software development is a process that involves a number of activities, we need some way of deciding what each activity will contain and of organizing the separate activities to make the move from one to the next as effortless as possible A software life-cycle model is an idealized description of how the activities relate to each other We could, for example, decide that the correct way to develop software is to complete each activity in turn, moving to the next once the current activity has been completed A diagram of this might appear as shown in Figure 11 While this approach would certainly work, it is perhaps not the optimal one In a large software project, the people who do the requirements analysis are not usually the same people who do design, the designers do not implement software, those who implement the system do not test it and the testers do not perform any maintenance It does not make sense to have all but one group of software developers standing by idle while one group works feverishly In a large development team, we would wish to overlap these activities as much as possible, which can usually be done since any individual stage in the life-cycle can be broken up into sections as shown in Figure 12
Barcode Creation In Java
Using Barcode encoder for Java Control to generate, create barcode image in Java applications.
Printing Code 128 Code Set B In .NET Framework
Using Barcode drawer for ASP.NET Control to generate, create Code 128 Code Set C image in ASP.NET applications.
Reading GTIN - 12 In .NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
Data Matrix 2d Barcode Creator In .NET
Using Barcode encoder for VS .NET Control to generate, create Data Matrix 2d barcode image in .NET applications.
Printing ANSI/AIM Code 39 In Visual Studio .NET
Using Barcode maker for Visual Studio .NET Control to generate, create USS Code 39 image in VS .NET applications.