Why web services

Web Services Interview. Next Topic Web service components. Reinforcement Learning. R Programming. React Native. Python Design Patterns. Python Pillow. Python Turtle. Verbal Ability. Interview Questions. Company Questions. Artificial Intelligence. Cloud Computing. Data Science. Angular 7. Machine Learning. Data Structures. Operating System. Computer Network. Some applications may be developed in Java, others in. Net, while some other in Angular JS, Node.

Most often than not, these heterogeneous applications need some sort of communication to happen between them. Since they are built using different development languages, it becomes really difficult to ensure accurate communication between applications. Here is where web services come in. Web services provide a common platform that allows multiple applications built on various programming languages to have the ability to communicate with each other.

In order for a web service to be fully functional, there are certain components that need to be in place. These components need to be present irrespective of whatever development language is used for programming the web service. SOAP is known as a transport-independent messaging protocol.

Each message has something which is known as an XML document. Only the structure of the XML document follows a specific pattern, but not the content. The diagram below shows a simple example of the communication via SOAP. We will discuss SOAP in detail in this tutorial. A web service cannot be used if it cannot be found. The client invoking the web service should know where the web service actually resides.

Software applications written in various programming languages and running on various platforms can use web services to exchange data over computer networks like the Internet in a manner similar to inter-process communication on a single computer. This interoperability e. You can build a Java-based web service on Solaris that is accessible from your Visual Basic program that runs on Windows.

Consider a simple account-management and order processing system. The accounting personnel use a client application built with Visual Basic or JSP to create new accounts and enter new customer orders. The processing logic for this system is written in Java and resides on a Solaris machine, which also interacts with a database to store information. Some bank staff use a browser to access Einstein.

Others require a richer desktop interface. As shown in Figure , Einstein was developed as a multitier Web service application. The client environments are implemented using Microsoft. The browser client is implemented using Microsoft. NET WinForms. Einstein's architecture also allows Wachovia to implement other types of client interfaces to support IVR systems, wireless handsets, twoway pagers, and other devices. Figure Einstein supports browser and rich desktop clients, allowing Wachovia to support other devices if needed.

Written using. Web services can help you accomplish many types of business goals. You can use Web services to solve immediate tactical problems.

You can use them to help you manage your software assets, leverage legacy applications, and reduce development costs. Web services can also help you optimize your business process and improve customer relationships. The first and most basic way to use Web services is for simple point-to-point integration. Cape Clear is a Web services software startup. It uses Salesforce. Users typically interface with the CRM solution through a browser, recording customer contact information and correspondence.

Like most software startups, Cape Clear provides e-mail-based customer support. As a result, quite a bit of customer correspondence takes place via e-mail. But Salesforce.

Users had to copy and paste the e-mail from Outlook into the Salesforce. Cape Clear found that lots of correspondence wasn't getting recorded. The Adapter service then passes the message to Salesforce. This Outlook macro adds a button to the standard Outlook tool bar labeled "Save to Salesforce.