In order of difficulty:

• KIOSK Knowledge Management (Infomaster)
• Business Service Registry (BSR):
  or UDR: UDDI Done Right
• Extra info in T-models + distr. search/updating
• and/or WSDL ++
• and/or WSML
• GUIs for manual web service composition
• Conversion of manual semantics files to WSML
• Virtual BPEL