UML Communication & Sequence Diagrams

[terryw]

Good evening everyone,

I need to create a UML communication and sequence diagram for a eAuction site. Each diagram must model the process of two buyers bidding for an item and one winning.

I have literally no clue on how to do this.

Any help much appreciated.

[Dai]

There's a very simple intro on Wikipedia that might be a good place to start.

http://en.wikipedia.org/wiki/Sequence_diagram

[terryw]

Hi DaiNasty,

I've read the Wiki page as well as several example of other such diagrams. I can't grasp how to implement what I need to do onto the two different diagram types.

Cheers