Week 4

In this week's contact, Greg talked about the types of prototype , their purpose and the appropriate time to use them.

Type	Typical Purpose	Characteristics	When to use
Horizontal prototype	Clarify scope and requirements	Demonstrates outer layer of human interface only, such as windows menus and screens	Function definition stage
Vertical prototype	Refine database design, test key components early	Demonstrates a working though incomplete system for key functions	Later portion of function definition stage

Exercise 1

What are the functional components?

The functional components on the driver's side would be the steering wheel, hand brake, gearstick and pedals. There would also be the whole engine that is functional.

What components are relevant to driving behaviour?

Driving behaviour would be based on the understanding of speed, distance and stopping capability. These behaviours are controlled using the steering wheel, hand brake and pedals.

What are the interactions of those components with the driver when driving?

The pedals are used for controlling the speed and stopping capability. While the steering wheel is used for manoeuvring the car and the gearstick is used for gears.

Exercise 2

Alarm clock application for your smartphone.

• Can set, edit & delete multiple alarms
• Can daisy-chain alarms - if one is allowed to ring out, another is activated automatically
• Can set different tones for different alarms
• Shake phone to snooze

Horizontal Prototype	This prototype would demonstrate the physical look of the product and since it's an application, paper prototype would be a good example to do this. This is to test the user interaction with the app and how user friendly the app is.
Vertical Prototype	This prototype's concern would be the actual major functions of the product. Therefore, implementation of the concept is needed for this.
Diagonal Prototype	This prototype would be a combination of the features of both horizontal and vertical prototypes.