Servicio de función técnica

"These are services that are reusable, but that do not provide business functions; rather, they provide the technical or infrastructure functions required to support service interactions in IT systems, such as auditEvent, checkUserPassword, or checkUserAuthorization. These services can then be implemented and coordinated (routed, choreographed, and aggregated) by dedicated application and infrastructure components in the SOA architecture." (IBM)

Estos servicios tienden a ser los habilitadores de la QoS (Quality of Services) y por ende incluye a aspectos relativos a: clustering, integridad transaccional, mensajería, disponibilidad, seguridad, failover, escalabilidad, entre otros. Son servicios preimplementados por middlewares (Messaging Queue, ESB, WSM, etc.)