ARCHITECTING ORDER MANAGEMENT SYSTEMS WITH SOA AND MICROSERVICES: AN ENTERPRISE APPROACH

Businesses have been modernizing their Order Management Systems (OMS) over time by moving from monolithic designs to Service-Oriented Architecture (SOA) and microservices-based frameworks. This is because digital systems are getting more complicated and customers want more. This study looked at how the architecture of OMS has changed over time in five big companies in the retail, logistics, and telecoms industries. Using a qualitative multiple case study method, data were gathered through system performance logs, document analysis, and semi-structured interviews. The results showed that scalability, fault tolerance, deployment agility, and system interoperability had all improved a lot. After the switch, key indicators including order processing time, downtime, and integration efficiency all exhibited improvements that could be measured. Even though they faced problems including skill gaps and and service visibility issues, they made big strategic gains, such as getting products to market faster, having fewer system failures, and making customers happier. The results show how important it is to have a hybrid SOA-microservices approach to make sure that corporate OMS is relevant and that IT infrastructure keeps up with changing business needs.