Chapter 32. More SSDs and Contracts
Virtue is insufficient temptation. | ||
| --George Bernard Shaw | ||
Introduction
The chapter quickly summarizes updates to SSDs and system operation contracts for this iteration of the NextGen case study. No changes are necessary for the Monopoly problem.
NextGen POS
New System Sequence Diagrams
In the current iteration, the new payment handling requirements involve new collaborations with external systems. To review, SSDs use sequence diagram notation to illustrate inter-system collaborations, treating each system as a blackbox. It is useful to illustrate ...
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