Plan to use Web services

This topic discusses how to plan your use of Web services that are developed and implemented based on a variety of Java programming models.

Overview

Web services reflect the service-oriented architecture approach to programming. This approach is based on the idea of building applications by discovering and implementing network-available services, or by invoking the available applications to accomplish a task. Web services deliver interoperability, for example, Web services applications provide a way for components created in different programming languages to work together as if they were created using the same language. Web services rely on existing transport technologies, such as HTTP, and standard data encoding techniques, such as Extensible Markup Language (XML), for invoking the implementation.

Procedure

1. Identify your goals and design Web services to fit your e-business solution. Consider what you want to accomplish by using Web services. Decide how Web services fit into your current topology, applications and programming model. Determine how the Web services process requests on the server and how the clients manage and use the Web service.

2. Design your Web services for reliability, availability, manageability and security. For example, you want your Web services to process a transaction in a reasonable time at all hours of the day and provide users with good security characteristics, such as authentication for buyers. Planning to use Web services to work with WebSphere Application Server helps to meet these requirements.

3. Review the standards used in developing and deploying Web services into WebSphere Application Server. Development and deployment are based on a variety of Java programming models. There are extensions to these standards that are also important to review. See Extensions to the JAX-RPC and Web Services for J2EE programming models for more information.

4. Decide what development and implementation tools to use. You can use a variety of manual development and implementation tasks. Whether you have an existing Web service to implement or you want to develop your own from a JavaBeans implementation or from an Enterprise JavaBeans (EJB) module, you can choose different tasks respective to your resources. You can also use assembly tools to complete development and implementation tasks.

5. Install WebSphere Application Server.

   See Install WebSphere Application Server.

6. Review Web services Samples.

Results

Related tasks

Related Reference