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Web Services

A Web service is a set of functionalities that are packaged as a single entity and published to the Web for use by other applications. Web services are building blocks for creating open distributed systems, and allow companies and individuals to quickly and cheaply make their digital assets available worldwide. One early example is Microsoft Passport, a convenient authentication service hosted by Microsoft. Here are some other examples:

a credit checking service that returns credit information when given a person's social security number.
a stock quote service that returns the stock price associated with a specified ticker symbol.
a purchasing service that allows computer systems to buy office supplies when given an item code and a quantity.

A Web service can aggregate other Web services to provide a higher-level set of features. For example, a Web service could provide a set of high-level travel features by orchestrating lower-level Web services for car rental, air travel, and hotels. Applications of the future will be built from Web services that are dynamically selected at runtime based on their cost, quality, and availability.

Sites in Web Services

Webservices.org
Vendor-neutral Web Services industry portal with news, analysis, papers, and forums.

IBM developerWorks: Web services
The Web Services special topic area is a resource for developers building Web applications for e-business, e-commerce, and the enterprise. By IBM.

Web Services Activity
W3C's overview of news, groups, documents and specifications, events and recommended reading.

Web Services Architect
A resource site dedicated entirely to Web Services, helping to build and expand upon the Web Services community.

Microsoft Web Services
Microsoft's site for web service development. Includes specifications, test tools, and articles.

Grand Central Communications
Provides a Web Services Network that enables companies to connect, integrate and manage their business processes with those of their partners and customers.

Web Services Links & Resources
WSindex.org is a researched directory of internet resources relating to Web Services, including XML, SOAP, WSDL and UDDI.

Altova Web Services Testing Tools
Altova's XML Spy Suite 4.3 now includes Web Services integration testing tools: a WSDL validator, a universal SOAP test client, and a SOAP Debugger that supports breakpoints on functions, conditional breakpoints, and single-stepping through web services transactions.

OakLeaf Systems XML Web Services Site
The oakleaf.ws (Web Service) site provides examples of production-grade XML Web services created with Visual Studio .NET, Visual Basic .NET and ASP.NET.

IBM alphaWorks Web Services Tools
Web Services tools and technologies from IBM Software Research.

Infravio
Software and consultation for developing, deploying and managing XML web services.

I.T. Works: Web Services
News & analysis, background information, market information, books & reports.

Web Services Mall
Information and resources on web services and related technologies, including XML and SOAP.

Wingfoot Software
Enables access to Web Services and .NET applications from mobile devices.

Web Service of the Day
Daily features of new services deemed 'innovative' by the author.

Web Service List
Categorized directory of user-rated implementations. Includes news and resources.

CapeScience
Developer community hosted by Cape Clear. Tools, tips, demos, tutorials, training, whitepapers, bulletin board and more for developers of Web Services-based applications.

AmberPoint
Web services management company. Develops solutions for making XML Web applications production-ready, business-ready and easily manageable.

Flash-db: Web Services Directory
Lists Web services where the clients were designed in the SWF (Flash) file format. Includes descriptions, methods, example files, SOAP help, XML help, and other tools.

SearchWebServices.com
Industry news, white papers, Web services-specific search engine and technical advice on XML, .NET, SOAP, UDDI, and WSDL.

CypressLogic
Developer of ObjectView, a graphical programming environment for integrating Web services.

Web-IQ
Software research laboratory specializing in developing Web Services capable of running over Semantic Web Architecture.

WebserviceX.NET
Provides programmable business logic components that serve as "black boxes" to provide access to functionality via web services.

Systinet
Provides Web services software based on emerging standards such as SOAP, WSDL and UDDI.

BindingPoint
XML Web Services portal featuring reviews, ratings, and support, powered by the public UDDI Business Registry.

RemoteMethods
Find and compare XML Web Services from various providers.

Acumen Advanced Technologies
Specializes in Web Services solutions for companies doing business using Internet technologies.

The Mind Electric
Software infrastructure vendor focused on the creation, deployment and management of distributed applications, with "GLUE" product that enables Java developers to build applications using web services, servlets and JSPs.

eBizPortals
Provides Web Services enabling infrastructure software for creating business process level (Coarse grain) Web Services out of existing websites and managing them.

Web services enabling technologies for Java
List of Java and open source Web service enabling products, resource lists, and resources: SOAP, WSDL, UDDI APIs, integrators, and choreographic software.

Joe's WebServices Page
WebServices link collection: standard initiatives, press articles, analysts, academic/expert papers/sites, books, vendors.

Web Services Summit
Portal site containing information about XML, the Semantic Web, service-oriented architectures, web services and security. Includes articles, papers, audio and video programs, and lists of resources such as tools, books, and training providers.

ServiceTrack
Online software solution which adds logging, analysis, monitoring, reporting, and firewall capabilities to production XML web services.

Digital Evolution
Provide Web Services management solutions, including DE Management Server that allows securely manage and monitor complex, loosely coupled system architectures.

webMethods Glue
Software infrastructure vendor focused on the creation, deployment and management of distributed applications, with "GLUE" product that enables Java developers to build applications using web services, servlets and JSPs.

Itellix Software
Provide Wisiba, a comprehensive Web services management suite that addresses infrastructure issues related to Security, Scalability and Quality of Service.

CBDI
Industry analysts and think tank focused on SOA, Web Services and Software Components, providing continuous analysis, consulting and workshops. Free newswire and information resources, plus premium subscription to continuous analysis in CBDI Journal.

WebService Resource
Web Services releated directory. Tutorials, examples, hosting, programming, applications, articles.

eWeek: Web Services
Articles and reviews in the Web Services industry.

Epionet
Provide Epiowave, a system that facilitates the development of applications based on the Services Oriented Computing approach.

Web Services Olympus
Web Services news, articles, white papers, tutorials, free available books and other books.

AlotSoft LLC
Provides Web Service based integration framework that are based on industry standard XML Schema, FIXML, FPML, and TXLife/XMLife.

Sosnoski Software Solutions, Inc.
Resources to support the development of Web services in Java, including published results on performance and usability. Company provides Web services consulting and software development services.