Space-based Programming is About Spaces, Not Transports

SOAP is a virtual transport. WS-xxx extensions are sometimes about transporting, sometimes about routing, sometimes about data (documents).

The appeal of space-based programming (e.g. Linda and JavaSpaces) is that it is all about spaces. Transports get commands and data (documents) from processes to spaces and from spaces to processes. Transports are inconsequential. There can be many. They can come and go and evolve.

The essence is the same: coordination through a set of simple space-based commands that can be combined in an infinite variety of ways.