Now, let's move to the intoduction of Web services.
Nowadays, many people can't deny to use web since the benefits of web are comfortable and easy to use for both adult and children. Some service providers think that if they have web server, they can use it to sell products around the world. Another part is users, they also can use it to contact, buy products and find something that they want around the world. Web have 3 main roles which are GET, POST and PUT in Web Service is the web is not only about data or information, it is also about service.
Web Service is a new web application that can install, find and start working on Web Service. It can do since easy work such as find information or complex business process. When you start working with Web Service like E-mail, it will get data and you can work anywhere you want because it will send data to server. In addtion web services allow users to share Information via network.
The Web Service use language of XML and HTTP for exchanging information. We know HTTP such as on the website that has internet. Another one is XML, is a language that can create by ourselves between client and service. It also use to exchange the different data between each machine.
Here is the example of Web services
From the fiqure above, you can see the connection between three main roles which are service provider, service registry, and service requestor. All these roles connected using bind, find, and publish operations. First of all, service provider is the one that allows access to the webservice and also pubishes service description to the service registry. Then it is time for service requestor to find the service description in service registry and uses the description information to create the service by binding with service provider.
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