SOA Life Cycle

Hello everyone, this article will show how SOA Life Cycle works and what happens in each one of the stages.

Model

The first step in a service-oriented architecture project has little to do with technology and everything to do with your business. The first step is to establish what these business activities or processes actually are.

In the model phase you start by gathering business requirements and then you design and optimize their desired business process.

By simulating, or modeling, your business processes before you write a line of code, you gain a much deeper understanding of them before looking for trying to build software that helps you carry them out.
 
Assemble

After business processes are modeled and optimized, developers can implement them by building new services or by reusing existing services, and then assembling them to form composite applications. The assemble phase is about finding functionality that already exists and service-enabling it.

Deploy

When they are modeled and assembled, the assets that make up your SOA are deployed into a secure and integrated environment. The deployment needs to meet the performance and availability needs of your business.

Manage

The deployed system must be managed and monitored, both from an IT and business perspective. Information gathered during the manage step is used to gain real-time insight into business processes, enabling better business decisions and feeding information back into the life cycle for continuous process improvement. You deal with issues such as quality of service, security, and general system administration.

In this step, you monitor and optimize the system, finding and correcting inefficiencies and problems.
Because SOA is an iterative process, the completion of this step is the start of a new model phase.

Source:
http://pic.dhe.ibm.com/infocenter/esbsoa/wesbv7r5/index.jsp?topic=%2Fcom.ibm.websphere.wbpm.scenarios.esb1.doc%2Ftopics%2Fcwesb_security.html
VW003 - Introducing the Value and Governance Model of Service-Oriented Architecture, IBM Corporation, 2007.