HTTP advantages …

• IIOP and DCOM (but also OPC, RMI, …)

  • Sophisticated protocols (important programming skills)
  • Both require runtime support to work properly
  • Cross platform porting very hard
  • Not usable over firewalls ! No global application possible.

• DCOM

  • Very connection oriented, network overhead to create and maintain session state and information
  • Not available on all platforms

• IIOP

  • Requires a ORB on both Client and Servers
  • The ORB must often be licensed ($$$). Unpractical for global applications

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