The best replacement for soa is cas.

The best alternatives to soa are rated as following:
★★★★★  cas
★★★  saas
★★  web services
★★  sua
★★  rest
★★  esb
★  eai
★  api
★  cloud computing
★  devils ride
  oop
  sca
  oo
  erp
  aos
  roa
  cas actuary
  web service
  cfa
  eda
  service oriented architecture
  bpm
  mvc
  jboss soa
  woa
  web 2.0
  client‐server
  ea
  itil
  point to point

Your alternative for soa is not listed? Suggest!
Speaking about soa, one probably shouldn't forget about esb.

Other search terms related to soa and their ratings are:
★★★★★ esb
★★★ web services
★ j2ee
★ governance
You have in mind a companion for soa and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of soa in all years. Click on graph for more.
soa
cas
saas