Design and Prototyping (week 9)

Interaction studies

Design and prototyping

What is prototype?
-start in small scale, full of bugs, not properly functioning

Example ;
• Paper based-outline
• Electronic outline
• 3d paper/cardboard mock-up
• Stack of hyperlinked screen shots

Meant for stakeholder to ;
-interact with envisioned product
- Gain experience in realistic setting
- Explore imagined uses

A prototype is a limited presentation that allows users to interacts and explore its usability.
It is an helpful aid when discussing with stakeholders.
It also can be use as a communication device among team members.
It is an effective way to test an idea

Ex : clarify vague requirements, to do user testing and evaluation, check the design compability

2 types of prototyping
- Low-fidelity and high fidelity

LOW FIDELITY

= one dies not look very much like the final product

Ex ; uses material that are very different from the intended final version such as paper,cardboard
(Storyboard to be exact)
# tend to be simple,cheap and quick to produce (support exploration of alternative designs and ideas)
# important during conceptual design but are not meant to be included in final project

High-fidelity

= uses material that you would expect in to be in the final product.
Issues?

- Take too long to build
- Reviewers and testers tend to comment on superficial aspects rather than content
- Developers are reluctant to change something they have crafted for hours.
- A software prototype can set expectations to high
- Just one bug in a high-fidelity prototype can bring the testing to halt

= Useful for selling ideas and for testing out technical issues.

Compromises in prototyping

= intention to produce something to give the users an input.

#must be designed and built with the key issues in mind.

2 common compromises ( Horizontal and vertical prototyping)

Concept model is an outline of what people can do with the produc and what concepts are needed to understand how to interact with it.
Some elements in a conceptual model will derive from the requirements for the product.

In simple words : TRY AND ERROR !

Azura Binti Abd.Mokmin
1102700146