The categories seem to be consolidating into:
a. Service enablement platforms (including any services implementation languages such as .NET, JAVA, CICS, etc, but also Application platforms such as Oracle ERP and SAP).
b. Registry Repository (System of authority for service catalog, assets, processes, roles and policies).
c. Intermediaries (mediation systems including integration hubs, ESBs, brokers, WS fabric, intermediaries, smart adaptors, portal software, XML accelerator appliances, SOAP firewalls, gateways, application routers, Web Service Management systems, WS Management agents, system management systems and others).
There are many categories, but they roughly fall into these buckets.
Dig Deeper on Topics Archive
Related Q&A from Miko Matsumura
Miko Matsumara discusses what next generation SOA is and how governance issues should be considered when skipping first generation SOA. Continue Reading
Miko Matsumara lists and explains three possible consolidations in existing Web services/SOA product categories. Continue Reading
Miko Matsumura gives a list of key concepts inside of SOA that will last even if the term SOA doesn't. Continue Reading