APA Format(Must), Intext citations(Must), No plagiarism


12.1: Paper Prototyping as a Core Tool in the Design of Cell Phone User Interfaces


Paper prototyping is increasingly being used by cell phone companies as a core part of their design process. This approach is replacing the old adage of ‘throwing the technology at users to see if it sticks.’ There is much competition in the cell phone industry demanding ever more new concepts. Mobile devices are feature rich. They now include mega-pixel cameras, music players, media galleries, and downloaded applications and more. This requires designing complex interactions, but ones which are clear to learn and use. Paper prototyping offers a rapid way to work through every detail of the interaction design across multiple applications.
Cell phone projects involve a range of disciplines-all with their own viewpoint on what the product should be. A typical project may include programmers, project managers, marketing experts, commercial managers, handset manufacturers, user experience specialists, visual designers, content managers, and network specialists. Paper prototyping provides a vehicle for everyone involved to be part of the design process-considering the design from multiple angles in a collaborative way.
This case study describes the benefits of using paper prototyping from a designers’ viewpoint while considering the bigger picture of its impact across the entire project lifecycle. It starts by explaining the problem space and how paper prototyping is used as an integrated part of UI design projects for European and US-based mobile operator companies. It uses project examples to illustrate the approach and explains step-by-step how the method can be used to include a range of stakeholders in the design process-regardless of their skill set or background. The case study offers exercises so you can experiment with the approach yourself.

Usability Business Case Study


The assignment requires a 4–6page review, not including cover page, abstract, and a reference page, of the business use case you have been assigned.

Answer the following questions:

· Summarize the case study
· Identify the study method used and why it was appropriate
· Explore some of the qualitative or quantitative methods gathered.
· Answer these two additional questions:
· How would you conduct the study any differently?
· Given the nature in the advance of technology, how do you foresee technology
changing the way studies such as these are conducted in the future?

Paper Prototyping as a
core tool in the design
of mobile phone user

There is much competition in the mobile telecoms industry. Mobile devices are increasingly feature-
rich — they include mega-pixel cameras, music players, media galleries and downloaded applications.
This requires the mobile user experience (UE) designer to explore and structure complex interaction
design solutions. Designers need to achieve this while retaining clarity and usability for the customer.
Paper prototyping offers a rapid design method that addresses these issues, enabling the designer to
work through every detail of the user experience early on.

Typically, mobile phone UE design projects involve multiple disciplines. Team members may
be software engineers, marketing managers, network specialists or business managers. All of these
‘stakeholders’ have their own viewpoint on what a product should be and how it should function.
Each stakeholder has needs and requirements that should to be considered in a design solution.
The stakeholder may include clients, internal people and/or a mixture of both. Paper prototyping
provides a tool for everyone involved to be part of the design process. It enables collaboration and
consideration of a design solution from multiple perspectives.

Structure of document:
• Part 1: Problem Space

Outlines the design constraints faced by designers and how paper prototyping helps.
• Part 2: Project walkthrough

Illustrates the design approach by walking through the design process for a ‘Manchester United’
custom mobile user interface.

• Part 3: Design exercise
Suggests design exercises and a process that enable experimentation with the paper prototyping

Interaction Design: Beyond human-computer interaction Sharp, Rogers and Preece
 2007 John Wiley & Sons, Ltd ISBN-13: 978-0-470-01866-8

2 Paper Prototyping

About the author
Matt Davies has specialised in user interface design for over 11 years. He combines an interaction
design and visual design approach. He currently works in a global User Experience Group at
Qualcomm in the UK. He has focussed on mobile UI design for over 4 years, working with
clients worldwide providing user-centred design across project lifecycles. As well as designing,
Matt has spent around 700 hours running usability lab studies with users. This experience has
provided a deep understanding of user behaviour, which he feeds into his design approach. Matt
has also spent time in academic research with cognitive and educational psychologists at Sussex
University UK.

Part 1: Problem Space
This section outlines the design issues that mobile UE designers typically face and how paper
prototyping helps solve them.

The design challenges for mobile UI projects typically are the issues of time, device constraints
and the diverse teams involved in projects.

As designers, how can we design the best user experience in the fastest time possible? How can
we achieve this while working within c

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