OpenModel: Related Work <-- ^ -->

Modularity is not enough

CORBA/IDL, EJB/RMI, DCOM, etc, all export interfaces only
Email case study shows "black box reuse" not likely to meet needs of stakeholders in MSDS

UDDI standard is already starting to move in this direction

UDDI (Universal Description Discovery and Integration): "yellow pages for the web"
UDDI tMODELs allow declaration of various sorts of w.s. behavior descriptions

WSDL (Web Services Description Language): interface declarations like CORBA's IDL
WSCL (Web Services Conversation Language): defines allowable interaction sequences
... but not functional relationships, nor complete/formal transition criteria
WSFL (Web Services Flow Language): module interconnect for static compound services
OpenModel models could fit in as richer type of tMODEL

P3P: a limited try restricted to privacy related behavior

web sites describe what they will do with personal information
users declare what sorts of behaviors they will tolerate
browser negotiates on behalf of user, warns user when site declares undesirable behavior
==> only successful if web sites won't or can't game the system
fails due to unfavorable game theory (cf Limitations slide)