Identifying Stories and Preparing to Build in VS .NET

Creator QR Code in VS .NET Identifying Stories and Preparing to Build
5 Identifying Stories and Preparing to Build
QR Code Reader In .NET
Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in Visual Studio .NET applications.
Figure 5.5 Login story card.
QR Code 2d Barcode Generation In VS .NET
Using Barcode printer for VS .NET Control to generate, create QR Code image in .NET framework applications.
database or list of users and passwords is constructed to check out the story if the main database is not yet ready. In such circumstances, it will be important that the login function is carefully tested again when the proper database is integrated into the system later. Finally, we describe the stories that depend on the current story and the stories that the current story depends on. This will help with planning out priorities among the stories and their integration into working systems. The XP method now tells us to write some tests for a story and then to code the story up. Writing tests, as we will see, is a sophisticated business, and one of the weaknesses of much of the literature is that little advice is offered about how
Recognize Denso QR Bar Code In .NET
Using Barcode recognizer for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Figure 5.6 The reverse of the login story card.
Barcode Drawer In Visual Studio .NET
Using Barcode generator for Visual Studio .NET Control to generate, create barcode image in VS .NET applications.
5.1 Looking at the User Stories
Barcode Reader In .NET
Using Barcode reader for VS .NET Control to read, scan read, scan image in VS .NET applications.
the tests are found; there is a lot of information about how to run tests and automate this process, but where the tests come from is something that seems to be left to experience and this is something that you may not have! Take one of your stories and write down some test cases. Don t forget what you are trying to do to con rm that the code does what it is supposed to do and doesn t do anything else. Can you think of any more examples of tests Good testers think awkward, trying out unlikely scenarios and data in an attempt to break the code. If you are to succeed in XP, you must adopt this attitude. In traditional software engineering, programmers tend to be too gentle with their own code; it s a psychological tendency that is hard to overcome. The in uence of pair programming in XP is an attempt to prevent this. It s better for the programmers to nd the bugs rather than for the users to nd them! We will discuss a more systematic way to derive tests shortly. Now we are supposed to write the code and apply all the tests, correcting the code until they all pass. Naturally, we do this in pairs. This is the basic XP process. How long did it take Make a note of the time you spent on writing the tests. This will give us an indication of what time it might take to write a similar story and conduct its tests. Hopefully, you will get quicker and better as you gain experience. The story we have just discussed would need to communicate with other parts of the system and it is not worth showing this to the client yet. There will be a user interface and a database, in all likelihood, and this class needs to be able to link in with them. While some pairs in the team are writing these basic units, the others can be looking at the design of the interface and the database that will power the system. When we are clearer about these, we will be able to write some system tests, link them together, and see the results of our work; then we can show the client something that he or she would understand. Although writing tests for simple classes such as this one is not particularly dif cult, things change when objects start communicating with each other and when a more complete architecture is being put together. This is where things can go seriously wrong. In the previous chapter, we looked at the requirements document and noted that it is not a static artifact but a dynamic entity that will change over the course of the project as both developers and customers understand the problems better, as the business needs change, and as resources, especially time, are used. However, maintaining an accurate list of stories both those that have been implemented and those that are believed to be required is vital in order to keep a grip on the project. Some proponents of XP might criticize the more formal ways that we do things. For example, just building stories without bothering with requirements document is a popular approach. This may work in some circumstances perhaps you have a long-term relationship with your customer and their requirements arise in a gradual and regular manner and the overall system architecture is stable. This is not the position that we have ever experienced. Usually we have a fairly xed deadline for completion and we need to stick to that as far as possible meeting stage deadlines and agreed installments of software otherwise the income needed to survive may not come through. Many customers are reluctant to pay unless they think that they are getting something of value.
Painting Denso QR Bar Code In Visual C#.NET
Using Barcode creator for Visual Studio .NET Control to generate, create QR Code image in .NET framework applications.
QR Code Generator In .NET Framework
Using Barcode creation for ASP.NET Control to generate, create QR-Code image in ASP.NET applications.
Data Matrix ECC200 Encoder In .NET Framework
Using Barcode creation for .NET framework Control to generate, create Data Matrix image in .NET applications.
EAN-13 Supplement 5 Maker In .NET
Using Barcode encoder for .NET Control to generate, create EAN-13 Supplement 5 image in .NET applications.
UCC - 12 Reader In .NET Framework
Using Barcode scanner for VS .NET Control to read, scan read, scan image in VS .NET applications.
Encoding Code128 In VB.NET
Using Barcode encoder for .NET Control to generate, create ANSI/AIM Code 128 image in .NET framework applications.
Data Matrix Maker In .NET Framework
Using Barcode maker for ASP.NET Control to generate, create Data Matrix 2d barcode image in ASP.NET applications.
Painting Data Matrix In Visual C#.NET
Using Barcode creation for .NET Control to generate, create Data Matrix 2d barcode image in VS .NET applications.