Choose and Book Compliance Document (PDF, 850Kb)

Appendix F - Notes on Interaction DiagramsDiagram NotationThe following UML sequence diagram-like notation is used to describe the interactions betweenthe user, Choose and Book, and the Service Provider and Referrer systems.{unsucessfully booked}Text within a rectangular box denotes a condition that mustbe satisfied before this path is executed.Reserve slotfor UBRNText with an oval shape denotes an activity that occurs at thatpoint.Application Acknowledgement MCCI - success()An arrow denotes a message between applications.Application acknowledgement messages show whetherthey carry a success or failure indication. If failure, seeAppendix A for types of failures that Choose and Book maygenerate.A single diagram is used to document each set of interactions that can occur. Each diagramcovers all the success and failure paths that can occur. Like sequence diagrams, time isrepresented down the side of the diagram and the messages between applications are shownacross the page.It should be noted that Choose and Book will eventually time-out waiting for a response to amessage. When this occurs Choose and Book will inform the user (assuming a user is waiting fora response) but it takes no other action. If Choose and Book subsequently receives a response tothe message it timed-out on, then it generates an negative Application Acknowledgement.Choose and BookAtos Origin - Commercial In ConfidenceChoose and Book ComplianceVersion: 8 (final)Reference EBS-AN\BA\BA011 9 May 2007Page 114