Web services: setting and resetting expectations
by Hugo Haas, W3C

Table of contents

• Web Services: Setting and Resetting Expectations
• Overview
• Traditional Web interaction
• Web services interaction
• What were we promised?
• The actors
• The bottom line
• Web services is not the first attempt at distributed computing
• What do we need to make this happen?
• A history of Web services: from XML-based protocols...
• A history of Web services: ... to a full-fledged infrastructure
• Designing an infrastructure
• The road to get there: standardization
• Overview of the W3C work
• A stack of Web services standardization efforts at W3C
• Standardization status: XML-based messaging framework
• Standardization status: service description language
• Standardization status: choreography description language
• The need for a common framework
• Lessons that we can learn from this early standardization life
• Reality check
• Fulfilling Web services' promise: a two-step process
• Semantics
• Expressing semantics in a machine-readable form
• Semantics: setting expectations
• How far are we from the end?
• References