SOA - Driving Factors
It has been a long-standing enterprise requirement to integrate various business processes and streamline the workflow across the organization.
There are many designs supporting this requirement like Electronic Data Interchange (EDI), web auctions; etc. But these are not based on standard architecture and hence have limited integration and flexibility.
SOA generally uses web service standards and web technologies in its implementation. It is a flexible, standardized architecture that supports the connection of various applications and data sharing.
It brings together various business processes by modularizing large discrete applications into small units called "services”. What is more, is the fact that, specifically both- people inside as well as outside the organization can use these. SOA is flexible and new services can be developed my mixing various services.
For example, use of customer information holding saving bank account to cross-sell other products like credit cards, mortgages, etc. Other example is linking various bank accounts (with same or different banks) for EFT (electronic fund transfer), credit card transactions and so on.
Application of SOA
Service Oriented Architecture enables rapid and cost-effective system development. It helps to improve total system-quality. However, applying the SOA paradigm to a real-time, web based systems has many problems like response time, reliability, support of event-driven, asynchronous parallel applications; etc.
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