Mobile communication is the basis for one of the fastest growing business areas at the beginning of the 21 st century. With IMT-2000 (International Mobile Telecommunications 2000), high-speed communication is possible anywhere, at any time, to any communication partner, with almost any device. As IMT-2000 comprises a set of different networking technologies, it provides a communication framework in which a subscriber may freely roam without having to be concerned about which network to use [1]. Hand-over procedures seamlessly integrate in-house networks, campus-based networks, metropolitan and wide area networks.
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We present a regression test selection technique for C# programs. C# is fairly new and is often used within the Microsoft .Net framework to give programmers a solid base to develop a variety of applications. Regression testing is done after modifying a program. Regression test selection refers to selecting a suitable subset of test cases from the original test suite in order to be rerun. It aims to provide confidence that the modifications are correct and did not affect other unmodified parts of the program. The regression test selection technique presented in this paper accounts for C#.Net specific features. Our technique is based on three phases; the first phase builds an Affected Class Diagram consisting of classes that are affected by the change in the source code. The second phase builds a C# Interclass Graph (CIG) from the affected class diagram based on C# specific features. In this phase, we reduce the number of selected test cases. The third phase involves further reduction and a new metric for assigning weights to test cases for prioritizing the selected test cases. We have empirically validated the proposed technique by using case studies. The empirical results show the usefulness of the proposed regression testing technique for C#.Net programs.
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Considering the rapid pace of changes in the software field and the limited courses that a student can take in languages, the question is which languages are crucial for students to learn in an undergraduate IS curriculum. This paper investigates the necessity of teaching C# and .NET in the undergraduate IS curriculum. It explores the pros and cons of .Net versus J2EE for applications development and differences between C#, C++ and Java, and which one may be the best language for teaching first programming course in IS curriculum.
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This introduction serves as a high-level overview of the different test approaches and tools, including Java Explorer, Java Framework, .NET Explorer, and .NET Framework that are offered by SilkPerformer SOA (Service Oriented Architecture) Edition

SilkPerformer .NET Explorer, which was developed using .NET, allows you to test Web Services, .NET Remoting objects, and other GUI-less .NET objects. .NET Explorer allows you to define and execute complete test scenarios with different test cases without requiring manual programming—everything is done visually via point and click operations. Test scripts are visual and easy to understand—even for staff members who aren’t familiar with .NET programming languages.
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The Flexible Image Transport System (FITS) is a powerful and widely adopted means of exchanging Astronomical Data. There are also a great number of tools and libraries available on many platforms to facilitate working with FITS. We present the FitsLib 1, A library written to facilitate development of astronomical data analysis tools on the Microsoft.Net Platform. This has been developed as a wrapper over one of the very popular and time tested FITS libraries, CFITSIO. Fits.Net library merges the advantages of speed and ruggedness of CFITSIO with the language independence of the Microsoft.Net technology and a simple Document Object Model (DOM). We believe this library will be intuitive for .NET programmers. We present the design and usage patterns of the library in C-Sharp. We also discuss performance issues of the library. Finally we present a number of applications and web services, which are currently running on this library.
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This tutorial will introduce you to event?based programming (EBP) using a Windows desktop application written in C#. The application, called SystemBrowser, works a little like Windows Explorer: it displays folders and files, as shown in the next figure.
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Although C# is derived from the C programming language, it has features such as garbage
collection that allow beginners to become proficient in C# more quickly than in C or C++. Similar to Java, it is object-oriented, comes with an extensive class library, and supports exception handling,multiple types of polymorphism, and separation of interfaces from implementations.Those features, combined with its powerful development tools, multi-platform support, and generics, make C# a good choice for many types of software development projects: rapid application development projects, projects implemented by individuals or large or small teams, Internet applications, and projects with strict reliability requirements. Testing frameworks such as NUnit make C# am enable to test-driven development and thus a good language for use with Extreme Programming (XP). Its strong typing helps to prevent many programming errors that are common in weakly typed languages.
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This document presents my work as part of course COSC 4080 during fall 2002, under the supervision of Professor Jonathan Ostroff. The initial purpose of the project was to write a reusable component to store Eiffel objects in XML format, and also to investigate a new product from Eiffel Software, namely Eiffel Envision.

Eiffel Envision is a plug-in for Visual Studio.NET that facilitate the writing, debugging and testing of Eiffel code in Visual Studio.NET. Needless to say, the integration between Eiffel and the .NET Framework (hereinafter referred to as Eiffel.NET) is not just at the GUI level. Eiffel is now one of the few languages that are .NET compatible. This means that programmers can compile Eiffel code to run on the .NET Common Language Runtime (more on this issue in the next section).
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