4a.+System+Sequence+Diagrams

Follow the links below to view the sequence diagrams for the critical use cases we specified.
[|Download Music SD (Joseph Lewis)]

[|Create Report SD (Joseph Lewis)]

[|Buy CD SD (Stephen Slaughter)]

[|Pay-by-Credit-Card SD (Stephen Slaughter)]

[|Create Account SD (Lucheng Yao)]

[|Update Inventory SD (Lucheng Yao)]