Final "Take-away" Our goal is dynamic re-use of business functions.

Something more than WSDL is needed because the representation is inadequate.
You cannot find a service by looking for a genric action: i.e., booking a flight or renting a car.Much less automatically compose services.

• Some of this can be fixed with existing WSDL!
  Simply make specifying input/ouput part name types with the associated XML schema part of a new WSDL specification.
• Additional information needs to be specified in order to get real Business Services: preconditions; actions; and payment, authentication (AAA), and cancelation methods.
  + Service Level information/agreement + trust/certification information about services (may spawn cottage industry).
  There needs to be a WSDL++: BSDL.

• Today's UDDDI makes it the responsibility of each searcher to do distributed search on the WSDL. This is like requiring each business to build its own search engine.
• A replacement for UDDI has got to be really vendor-neutral.