A01 chaf6542 06 se fm indd

 talk-  through

 – a 

 walk-  through

 of the cards is performed.

3  Relate  actors  to   use-  cases

Figure 11.12 also shows how actors relate to  use-  cases. It can be used to identify respon-

sibilities and check for missing activities. For example, ‘Check order status’ is a  use-  case 

that is missing and the company would have to discuss whether it was acceptable for a cus-

tomer service rep to place an order for a customer who was complaining about a particular 

product.

 Talk-  through

A user verbally describes 

their required actions.

 Walk-  through

A user executes their 

actions through using a 

system or mock-up.

M11_CHAF6542_06_SE_C11.indd   548

7/23/14   1:26 PM

---

549

Chapter 11  Analysis and design