XML Web Services are the fundamental building blocks in the move to distributed computing on the Internet. Open standards and the focus on communication and collaboration among people and applications have created an environment where XML Web services are becoming the platform for application integration. Applications are constructed using multiple XML Web services from various sources that work together regardless of where they reside or how they were implemented. XML Web Services expose useful functionality to Web users through a standard Web protocol. In most cases, the protocol used is SOAP. XML Web services provide a way to describe their interfaces in enough detail to allow a user to build a client application to talk to them. This description is usually provided in an XML document called a Web Services Description Language (WSDL) document. XML Web services are registered so that potential users can find them easily. This is done with Universal Discovery Description and Integration (UDDI).
JScript.NET is Microsoft's implementation for JavaScript. Jscript.NET adds many new features to Jscript, including direct support for Object Oriented Programming techniques.
VISUAL J#.NET was introduced by Microsoft Corporation at Microsoft TechEd 2002 Europe. This is targeted as a development tool for Java language developers building applications and services on the Microsoft .NET Framework. Visual J#.NET aims to provide an easy transition for Java-language developers into the world of XML Web Services and dramatically improves the interoperability of Java language programs with existing software written in a variety of other programming languages. The ease of integration, interoperability and migration of existing skills and investments that Visual J#.NET enables can give a big draw to customers who want to develop applications and XML Web Services with the Java language on the .NET Framework.
SOAP is a lightweight specification protocol used to invoke methods on servers, components and objects so as to exchange information in a decentralized, distributed environment. SOAP was originally developed by Microsoft, DevelopMentor, and Userland Software and was then submitted to the Internet Engineering Task Force (IETF), who eventually made it an official recommendation. SOAP provides a solution for connecting Web sites and applications in order to create "Web services" (as coined by Microsoft in its new platform .net). The specification's authors decided to keep SOAP as a low-layer system. They clearly stated that they did not want to define an entire distributed object system specification (that is, no "distributed garbage collection," for example).
UDDI (Universal Discovery Description and Integration) is a public registry designed to house information about businesses and their services in a structured way. Through UDDI, one can publish and discover information about a business and its Web Services. This data can be classified using standard taxonomies so that information can be found based on categorization. Most importantly, UDDI contains information about the technical interfaces of a business's services. Through a set of SOAP-based XML API calls, one can interact with UDDI at both design time and run time to discover technical data, such that those services can be invoked and used. In this way, UDDI serves as infrastructure for a software landscape based on Web Services. In simple words we can say that UDDI is the yellow pages of Web services. As with traditional yellow pages, you can search for a company that offers the services you need, read about the service offered and contact someone for more information. You can, of course, offer a Web service without registering it in UDDI, just as you can open a business in your basement and rely on word-of-mouth advertising but if you want to reach a significant market, you need UDDI so your customers can find you.
VISUAL C#.NET offers beginners and intermediate developers, with some experience in C++ or Java, a modern language and robust development environment for creating XML Web Services and Microsoft .NET based applications for Microsoft Windows platform as well as create powerful next-generation Internet Applications fast and effectively.
