This IBM® Redbooks publication describes how to implement Web services in IBM WebSphere® Application Server V7. It starts by describing the concepts of the major building blocks on which Web services rely and leading practices for Web services applications. It then illustrates how to use Rational® Application Developer and the WebSphere tools to build and deploy a Web services application. In addition to the fundamentals of Web services development, this book provides information about advanced topics, including WS-Policy, WS-MetadataExchange, Web services transactions, WS-Notification, and WS-SecureConversation.

The IBM® System z® platform is the strategic core of business world wide. By using a realistic customer scenario, two IBM teams ventured to demonstrate how to deploy the IBM service-oriented architecture (SOA) portfolio on IBM z/OS® and on z/OS in partnership with additional platforms such as AIX® and Linux® for System z. The teams created the experience that is documented in this IBM Redbooks® publication to explain the work that is required to create, deploy, and test the SOA solution on both z/OS and z/OS with additional platforms. The teams also performed extensive testing to verify the correct behavior of the platforms, products, and applications involved. This Redbooks publication covers the product configuration that is necessary to build the SOA solution described in the project scenario. This book provides useful hints and tips that were discovered during the course of testing to ensure successful solution deployment. It also provides an extensive set of references to other documents that proved useful for building the solution. This book is designed for IT professionals who are interested in creating an SOA solution either entirely on z/OS or on z/OS in conjunction with other platforms. Prior to reading this book, you must have basic knowledge of SOA solutions, z/OS or other platforms, and the SOA products running on those platforms.

There are many options to implement a service-oriented architecture (SOA). A good SOA solution for one company might not be a good solution for another, even in the same business environment and IT landscape. Choosing a solid SOA solution involves strategy, vision, architectural thinking, and finally, technology. It also involves personal taste and organizational politics. So, why did we decide to write a book dedicated to SOA solutions on System z then? The answer is quite simple: the combination of the System z hardware, the operating systems that run on System z, and the SOA middleware provide specific functionality and influence the effectiveness of your SOA solution to a great extent. In other words, if you were to implement the same SOA solution on System z and on another platform, you would see different results. This book projects a large number of solutions in all areas of the IBM SOA Reference Architecture on IBM System z. Where appropriate we highlight the additional System z benefits of running a certain solution on System z. The primary audience for this book is IT Architects, especially solution architects, enterprise architects, infrastructure architects, and application architects.

Service Oriented Architecture (SOA) requires a new way of looking at integration between subsystems. The primary subsystems of interest on z/OS are CICS, IMS, and DB2. There are many ways to integrate WebSphere Application Server on z/OS with those subsystems. In this IBM Redbooks publication, we focus on Web Services integration scenarios and scenarios using an Enterprise Service Bus (ESB) solution. In the IBM Redbooks publication WebSphere for z/OS V6 Connectivity Handbook, SG24-7064, we elaborate on both Web Services and J2C scenarios. The scenarios in this book are described from a development perspective. In the Additional material, a workspace is included for most scenarios.

The WebSphere® 6.1 Feature pack for Web services offers a new and improved implementation of Java Web services and improved usability. Some of the changes simplify existing solutions; others enable new solutions requiring more secure and reliable services, asynchronous interaction patterns, and more complex data models. The Feature pack for Web services offers a preliminary implementation of the WS-I Reliable and Secure WS-I profile, which is expected to proceed to ratification through 2008. This IBM® Redbooks® publication includes an extensive interoperability example using Reliable and Secure Web services with the Windows Communications Foundation. There are also lots of examples showing you how to use the feature pack, use the new Web services Policy sets, and code Java Web services using the JAX-WS specification. For architects and designers, there are chapters on business scenarios that will benefit from the feature pack, and examples of patterns that are readily implemented using the feature pack.

In many WebSphere® Application Server environments, support personnel often get more questions on application performance and tuning than WebSphere Application Server tuning. While there is much documentation and guidance for installing, monitoring, and tuning the performance and scalability aspects of WebSphere Application Server, not a lot of guidance and recommendations for performance and scalability considerations are given when designing and coding applications that execute in the WebSphere Application Server environment. This IBM® Redbooks® publication provides performance and scalability considerations to keep in mind when developing and coding WebSphere Application Server applications. In this book, we take a layered approach to application development covering performance and coding considerations for each layer in a separate chapter. In addition, various application development tools and strategies are compared within each layer along with best practices to keep in mind when designing and developing applications. The target audience for this book includes the application development team, especially architects and developers. It also includes developers with experience using various application development techniques and tools for the different layers in the application architecture.

This IBM® Redbook describes how to use WebSphere® DynaCache to improve the performance of WebSphere Commerce Web sites. Today's Web sites are a demanding mixture of static images surrounded by mini-shopping carts, e-marketing spots, and other eye-catching fragments, all of which change from view to view and user to user. Sites must be richly featured and personalized to attract customers – and they must deliver this content at a high level of performance as well. But the richness and personalization customers want is often the enemy of good Web site performance. DynaCache technology gives Web site developers a robust tool for achieving excellent Web site performance. It can be applied retrospectively to existing Web sites whose performance is not meeting the owning company's requirements. It is even better applied from the beginning of a J2EE™ Web project, and will yield performance gains well beyond those achieved at a comparable cost by adding more hardware or rewriting the solution. This book leads you through an explanation of what caching is, and what is special about caching Web sites. It then describes the capabilities offered by WebSphere DynaCache and how to most effectively make use of those capabilities. The discussion is enhanced by practical examples and tutorials to help you configure DynaCache and implement a sample WebSphere Commerce store. Finally, the book describes how to approach benchmarking for an online store, and how to quantify the effectiveness of a dynamic caching policy on

This IBM® Redbooks® publication was written with the objective to provide a technical description of some of the most important security scenarios available with WebSphere® Application Server Version 6.1 for z/OS®. We chose scenarios that are not really documented elsewhere and that have had significant changes in Version 6.1. In the first two chapters we provide an overview of security with WAS on z/OS for those readers who are unfamiliar with the security landscape on z/OS. From Chapter 3, "Web container security" on page 63, onwards we go into more technical depth.

This IBM Redbooks publication is a collection of previously published Redpapers. This publication allows for easy download of all papers. Each paper addresses the problem determination process to take for specific components on specific platforms. The intent of the papers is to help customers through the process of identifying and resolving problems in WebSphere Application Server V6 .1. The reader will be taken through the process of identifying symptoms of the problem, collecting and analyzing data for diagnosing the problem, examining common root causes and solutions for a problem, and finally how to gather documentation before contacting IBM technical support. As a prerequisite to problem determination efforts on WebSphere® Application Server, you should review "Approach to Problem Determinations" at http://www.redbooks.ibm.com/abstracts/redp4073.html

Implementing a WebSphere Application Server environment on z/OS and deploying applications to it in a manner that delivers the best performance is not a trivial task. There are many parameters that can be influenced and applications can be written in many different ways. This IBM Redbooks publication will give you a structure you can use to set up an environment that is tuned to meet best performance and at the same can be monitored to catch eventual performance bottlenecks. We also pay attention to workload testing using a variety of tools and best practices in writing and deploying applications.