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User-Centred Requirements Handbook

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Phase 1. User context and Early design


1.11 Perform expert review of designs

Objective

The aim of this section is to review all the ideas proposed for the new system and to evaluate them by means of an expert review. Those taken forward will feed into the development of a system prototype (section 2.3)

Process

1. Consider the list of ideas produced on Form 1.10. Consider the feasibility of each design and write suitable comments in the relevant column (column 3).

2. Consider each idea again and either put a tick or cross against it (in column 4) to indicate whether the idea will be taken forward into the design or not. For those ideas taken forward, assign a reference number to each one.

Form 1.10 - Review of Design Ideas and Concepts

(Example showing form fully completed)

1.10 Design ideas and concepts
System: New bank machine
  Ideas and Concepts Comments

Take Forward?
/Ref.
General Ideas      
  Speech synthesis for guidance. Expensive but may be useful for those with impaired vision.


1.11.1
Goal Specific      

G1
Access required service quickly and safely
Question and Answer mode for beginners. Useful idea but may slow down the interaction process


1.11.2

G2
Replenish money
Simple reload drawer while machine still running. Not recommended as may cause electrical faults.

G3
Replenish paper
Simple reload drawer while machine still running. Not recommended as may cause electrical faults.

G4
Report fault with bank machine
Allow user to notify bank if their card gets stuck in the machine, by pressing special button. Good idea as long as button only active for when card is actually lost in the machine


1.11.3

G5
Repair fault
Allow bank staff to repair some faults to save visit from maintenance staff.

Worth considering.
Danger of overloading staff.


1.11.4

Transfer those taken forward to

Form 3.5 Functions and Features


1.12 Move to Phase 2 ?
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