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SOAP White Papers & Technical Information
Web Services - The next revolution in software A blue paper published by Deloitte & Touche.
The Laws of Evolution: A Pragmatic Analysis of the Emerging Web Services Market Web services and service-oriented architectures represent a fundamental shift in the design of enterprise software. As with previous shifts, successful new companies will emerge and some incumbents will fade away. Our analysis is grounded in the five laws of web services evolution. We make a business case for web services innovation and provide a practical overview of the emerging web services market. Bottom line, we believe some of the most important solutions are coming from smaller software companies that are tackling real problems today.
The Emerging Web Services Market


We make a business case for web services in the enterprise and argue that service-oriented architectures promise to change fundamentally not only the way companies build and deploy software, but also how they communicate with their partners and customers.

Web Service Provisioning

Provisioning Web services is a keystone to operating pay-per-use Web services between businesses. It is a complex mixture of service authentication, enrollment, metering, billing, and managing operations that control the behavior of a Web service during use, whether within your own company or between business partners. This paper examines the Web Services Hosting Technology (WHST) package released through alphaWorks that handles this major task.  

Web Service Intermediaries

The author takes a look at the general architecture of an Intermediary and practical issues that Web Services publishers and subscribers will have to grapple with when dealing with an Intermediary.
Object Interconnections: CORBA and XML
Part 3: SOAP and Web Services
In this column the authors delve into two hot topics related to XML and CORBA: SOAP (Simple Object Access Protocol) and web services. They  take a pragmatic look at these technologies to see what they're really made of, to see where their real value resides, and how they compare and contrast with CORBA.

Simply SOAP

Roger Wolter answered many frequently asked questions about SOAP, WSDL, security and web services in this MSDN article.

Performance testing SOAP-based applications

Frank Cohen offers tips on overcoming scalability problems, and introduces
a free open-source utility to proof performance in SOAP-based Web services.

Myths and misunderstandings surrounding SOAP

In this article, Frank Cohen details and debunks many of the myths and misunderstandings surrounding SOAP.

Working with Web Services in WebSphere

This whitepaper explains, step-by-step, how you can  use the Web services support and a sample StockQuoteService Java class is described in this paper along with download  trial versions of the WebSphere Studio and Application Server

The Slippery SOAP

This month's Endpoints column describes SOAP 1.1, its header extensibility mechanism, and possible changes in SOAP 1.2.
Object Interconnections: CORBA and XML Part 3: SOAP and Web Services The authors take a pragmatic look at XML and SOAP and  to see what they're really made of, to see where their real value resides, and how they compare and contrast with CORBA.
Understanding WSDL in a UDDI registry, Part 1, Part 2 The Web Services Description Language has a lot of versatility in its methods of use. In particular, WSDL can work with UDDI registries in several different ways depending upon the application needs.   
SOAP security extensions: digital signature SOAP Security Extensions: Digital Signature (SOAP-DSIG) defines the syntax and processing rules for digitally signing SOAP messages and validating signatures. This article discusses how SOAP-DSIG is related to SSL, and describes how the two technologies complement each other.  
SMS: Case study of a Web services deployment Web services are moving into production. This case study of a Short Message Service application examines issues specific to Web services development in telecommunications services.
Internal or External Web Services? What are the respective effects of implementing internal and external Web Services? And which type of Web Services will dominate in the future? Johann Dumser gave  in-depth analysis in this paper.
Versioning of Web Services How do we maintain different versions of Web Services for different customers? In this article, Romin Irani defines the common problem of versioning, and attempt to find some solutions with respect to Web Services.
The Web services insider, Part 3:  Apache and Microsoft -- playing nice together (IBM) James Snell shows that Apache and Microsoft can play nicely together, by demonstrating how easy it is to consume Apache SOAP-based Web services using the Microsoft SOAP Toolkit Beta 2.
The role of private UDDI nodes in Web services, Part 1: Six species of UDDI Steve Graham introduces the concepts behind Web services discovery and gives a brief overview of UDDI (Universal Description Discovery and Integration). He examines six variants of UDDI registries, highlighting the role each of these plays in a service-oriented architecture.  
WSDL for Defining Web Services With the W3C's XML Protocol Working Group and industry heavyweights behind it, will WSDL reach Recommendation status?
Web Services and the Simple Object Access Protocol (Microsoft) The Simple Object Access Protocol (SOAP) improves Internet interoperability with an XML-based, platform-agnostic approach to programming the Web.
Deconstructing Babel: XML and application integration (Application Development Trend) XML may not yet be a true 'silver bullet,' but it can be used to great effect in integration projects if IT managers create a detailed plan that can overpower its weaknesses
Inside SOAP (xml.com) A technical discussion of SOAP. 
SOAP FAQ (develomentor) An frequently asked questions and answers list compiled by developmentor.
About SOAP (Microsoft) The Simple Object Access Protocol (SOAP) is a way to use the existing Internet infrastructure to enable applications to communicate directly with each other without being unintentionally blocked by firewalls. . .
Exposing Application Services With SOAP (xml.com) Developing web services using MS SOAP Toolkit.
Using MS SOAP Toolkit

(West Wind)

Web Services and XML Messaging are gaining ever more attention and at the core of this movement is the Simple Object Access Protocol (SOAP), which promises to bring a standard interface to calling server side code. In this article Rick discusses what SOAP is how it works and how to use Microsoft's SOAP Development Kit to call COM components and script code over the Web.

SOAP Articles A list of articles at IBM Web Services site.
Using WSDL in SOAP Applications This article provides a brief background and technical introduction to WSDL. Knowledge of XML and XML Namespaces is required and some familiarity with XML Schemas and SOAP is useful.
The True Nature of Web Services According to Mark Colan (IBM), Web Services are "Internet-based modular applications that perform a specific business task and conform to a specific technical format." So, if certain processes from your applications can be invoked over the Internet, within a method and with a standard format, then you are already a server of Web Services.
SOAP for Platform-Neutral Interoperability The momentum is building behind the Simple Object Access Protocol (SOAP), a new Internet protocol that promises a new age of interoperability between the various distributed computing factions. SOAP addresses interoperability at the data serialization level, allowing disparate distributed programming systems to interact without disrupting the aspects of each platform that make them desirable to their adherents.
The Tao of e-business services (IBM)
The concept of Web services is the beginning of a new service-oriented architecture in building better software applications. The change from an object-oriented system to a service-oriented one is an evolutionary idea that sublimated from the global Internet and Web system.
What is UDDI
Universal Discovery, Description and Integration (UDDI) is fast emerging as the standard for registering, describing and searching for web services.
UDDI: An Executive Summary
The UDDI specifications define a way to publish and discover information about Web services. UDDI aims to automate the process of publishing your preferred way of doing business, finding trading partners and have them find you, and interoperate with these trading partners over the Internet.

The Universal Description, Discovery, and Integration (UDDI) Service is now up and running at Microsoft, IBM, and Ariba. This is an online Web Service that you can use from your applications to dynamically discover other online services, all neatly packaged in a simple XML interface.
Web Service Security
This paper provides a high-level overview of mechanisms you can use to secure access to your XML Web services.
SOAP:Simple Object Access Protocol
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).
Some Interesting Readings
A Brief History of SOAP Don Box's view of SOAP development.
A Busy Developer's Guide to SOAP 1.1 UserLand's Dave Winer proposed a subset of SOAP.
SOAP InterOpera A roundtable discussion of issues of SOAP interoperability.

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