Plan to use Web services

 

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Overview

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

Read the Web services scenario: Overview which tells the story of a fictional online garden supply retailer named Plants by WebSphere and how this retailer incorporated the Web services concept. You can also review the Samples Gallery for Web services samples.

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 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 WAS helps to meet these requirements.

  3. Review the standards used in developing WAS Web services

    Development and deployment are based on a variety of Java programming models. There are extensions to these standards that are also important to review.

  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 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 WAS.

  6. Review Web services Samples.

 

Results

You have a design plan for implementing Web services applications into your business architecture.


Service-oriented architecture
Web services approach to a service-oriented architecture
Web services business models supported
Access the Samples (Samples Gallery)

 

Related tasks

Installing
Implement Web services applications

 

Related Reference

Web services: Resources for learning