SOA – Bird’s Eye View Arun Majumdar, CTO, VivoMind Intelligence Inc, Rockville, MD

Bird’s Eye View of SOA Key Elements of Concern to SOA (one possible view): 1.Infrastructure Resources needed to fulfill the unit of work (data bases, forms, related data) - some connections carry DATA, others, CONTROL information, yet others, TIMING and EVENTS. 2.Execution of business tasks and activities to produce a unit of work (ex. business rules to make business decisions) : execution is determined by Workflows and workflows are determined by Events 3.Artifacts consumed or produced by unit of work (evidence of real-time process instance) – ex: an XML message, a printout for an order/invoice … 4.Human resources - they are semantic elements of the system - required to fulfill the unit of work (name, roles, organization chart and involvement) BIRD’S EYE PROBLEM : NEW INFRASTRUCTURE NEEDS Moving from the VERTICAL integrated monolithic Service Applications to a HORIZONTAL Service Delivery System to provide multitude value to end users requires a new network infrastructure.

Bird’s Eye View of Semantics Legacy Applications Native DBMS interfaces New Applications Personalized Requests DBMS (Access, DB2, SQL Server, Oracle,... ) Semantic API Layer OLD SYSTEMS NEW SYSTEMS HARD WORK IS HERE SERVICEBBRROOKKEERRSERVICEBBRROOKKEERRBROKER Old Protocol Layers New Protocol Layers TCP/IPROUTER API LANGUAGE

Bird’s Eye View - Infrastructure Business TRANSFORM QOI = Quality of Information ; QOS = Quality of Service DECISIONS EVENTS OBJECTS BUSINESS WORKFLOW