Software services are functional attributes of a system designed to perform specific tasks. It can retrieve information, execute a program, or can carry out a complete business function with respect to the organizational goals. It is made up of codes and information necessary to carry out the intended functions. It can also be remotely accessed and configured or can be updated to stay relevant to changing demands. The basic difference between normal software services and SOA is that the former is an end result of the software development process while the latter is an application based on an individual or a composite of software services.
Service Oriented Architecture (SOA) is a software design that makes the application components reusable by providing services using a common communication protocol over a network. It basically integrates all the software components that are separately deployed and maintained by communicating with each other to function across different systems.
SOA helps users to assimilate different facilities from already existing services to develop applications. It includes several principles that help structure a decentralized system by integrating several components to form a well-structured application. It is basically a computing architecture that forms an interoperable service package that can function in separate systems and business domains.
What Is SOA Architecture? Implementation of SOA requires certain protocols, infrastructure, and tools to enable system interoperability and establish communication between the various business functions. For instance SOAP, JSON, Active MQ, and Apache Thrift are some of the standard protocols to access data or send requests for services. SOA developers can use Enterprise Service Buses (ESBs) which integrates the centralized core component with the backend systems to deploy service interfaces. Users can invoke services by sending messages to the ESB, which then transforms and reroutes the coded messages for the specific service implementation.
The components are loosely coupled i.e. interconnecting components in a system network to share communication or to coordinate a process by operating independently. A simple Services Oriented Architecture Example is SOAP (Simple Object Access Protocol). SOAP helps in the implementation of web services by exchanging structured information in the form of a messaging protocol specified for a particular application. As the components are loosely coupled, each of the components can be switched out or updated with minimal effect or changes on each other. This makes it possible to establish individual services as well as a composite service that enhances enterprise flexibility.
There are eight main SOA components in each of the SOA blocks. They are:
Some of the key SOA principles are given below:
Below are some of the benefits of service-oriented architecture:
Some of the challenges of service-oriented architecture are listed below:
With the advancement of technologies and the increase in the deployment of web services, companies will continue to harness the power of SOA. Its standard communication channel will continue in ensuring interoperability with multiple software applications. SOA will ensure that software services are made available to users and promote scalability. SOA ensures easy maintenance and it will help in reducing the costs while ensuring a sound business service solution to clients.
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