Index of Slides

• Index of Slides
• Services are Software Components
• The Business Vision
• Long Overdue
• Integration Semantics Are Hard
• BPEL is S-o-t-A
• Why Compose Web Services?
• Principles of Service-based Computation
• Using Subroutines
• Subroutines are not Web Services
• Service Composition is Not Using Subroutines
• Composing Seems Simple At First
• Sourcing a Motorcycle Brake Disc
• An Execution Problem
• Plan Repair
• The Whole Plan with PO
• Composition with Constraints
• Facts of the Case
• Web Service Definition
• Re-imbursing C Petrie for $4000
• Re-imbursing C Petrie for $5000
• What If Jackie Declines Approval?
• The Travel Request Workflow
• You Just Have to Careful About State Changes
• A Simple Plan
• A Better Plan
• An Overly Strong Condition
• The Meaning of this
• Too Strong Safety
• The Composition Problem
• Retrieving Services
• Academic Semantics
• A Service Composition is a Process
• End Users
• Reusuable Workflows as Guides
• What the User Wants
• Simple Web Page Scripting
• Workflows Vs Process Instances
• "Traditional" Service Descriptions Assume Workflows
• A Typical Workflow
• Automating BPEL is a Major Goal
• How to Compose Web Services