Interface Analysis and Design

Running head: INTERFACE ANALYSIS AND DESIGN
Interface Analysis and Design
Name of the Student
Name of the University
Author’s note:

1INTERFACE ANALYSIS AND DESIGN
Table of Contents
Introduction:....................................................................................................................................2
1. Critical Exploration:....................................................................................................................2
2. User Need Analysis:....................................................................................................................3
2.1 Persona:..................................................................................................................................3
2.2 Scenario:................................................................................................................................4
2.3 Hierarchical Task Analysis:...................................................................................................5
2.4 Environmental Analysis:.......................................................................................................5
3. Preliminary Design:.....................................................................................................................0
3.1 Story Board:...........................................................................................................................0
3.2 Narrative:...............................................................................................................................0
4. Detailed Design:..........................................................................................................................1
4.1 Decision related to User Need Analysis................................................................................1
4.2 Decision Related to Usability................................................................................................2
4.3 Decision related to cognitive issues.......................................................................................2
5. Implementation:...........................................................................................................................2
6. Evaluation:...................................................................................................................................8
6.1 Cognitive Walkthrough:........................................................................................................8
6.2 Heuristic Evaluation:...........................................................................................................10
Conclusion:....................................................................................................................................11
Bibliography:.................................................................................................................................12

2INTERFACE ANALYSIS AND DESIGN
Introduction:
Various online book shop applications are available in the market like Amazon.com and
many others. In this competitive market a new book shop application must include all the
conventional interface and interaction practices along with introducing new elements. The whole
assignment is based on creating an online book shop based on the iPhone X device.
1. Critical Exploration:
The usability evaluation is to be done based on the effective usability goals of the system.
The effectiveness refers to the outcome of how properly the system can perform its tasks. The
quality of the system is determined by how effective the system is (Orfanou, Tselios and
Katsanos 2015). Effectiveness of the system can be determined by measuring how well the users
of system can learn to use the system. Another factor is effort of the user to complete a task or
access desired information. All these factors are measured using both qualitative and quantitative
analysis.
The effectiveness is very important usability goal because it ensures the quality of system
design directly (Card 2018). Effectiveness can allow checking the existing errors and loopholes
in a system. Categorization of the errors can allow determining the plan for meeting effective
usability goals.
Effective usability goals can be performed by understanding the requirements of user. It
is hard to make an application effective in one attempt that is why prototyping can be a good way
to implement it (Lazar, Feng and Hochheiser 2017).

3INTERFACE ANALYSIS AND DESIGN
2. User Need Analysis:
In order to acquire a great understanding of proposed application’s user interaction and
user interface design, it is essential to evaluate the requirements of potential users. The first step
toward evaluating the user need is developing profile of potential application user.
2.1 Persona:
Name Jordan Sexton
Occupation Winch operator at Handy Dan
Demographics 32 Years Old
Male
Lives in 18 Bass Street, KOONORIGAN NSW 2480
Facts Depend on Writer
Salary: $10,000
Keen reader
Loves fiction books
Fan of old Edger Allan Poe, Arthur Conan Doyle, Stephen King and
More
Good knowledge of American and UK history
Communication Phone: [phone]
Mail: [e-mail]
Behaviors Gets very frustrated when purchasing books from poor designed websites
Switches publishers because of poor quality contents in the books
Not being able to read few pages of a new book makes insecure about the

4INTERFACE ANALYSIS AND DESIGN
book’s quality
Not-return policies or negligence of seller makes her very angry
Goes to park or any quite place to read books
Loves to gift good books to people
If a write or publisher offers good quality books then he purchases that
particular writer’s or publisher’s books back to back
Manages work and life ratio quite good
Needs and Goals Need books that can offer good storyline and character building
Good after sale service from the book shop
Discount offers on various books
Pre-booking of books
Easy payment gateway that can support electronic wallets
To be able to add books into cart before purchasing
Notifications when a book present in wish list become available
To be able to create an account that can store all the activity history
2.2 Scenario:
Jordan purchases at least one book a week. As he is a dedicated reader, each week he
reads at least two books. He often purchase more than three books together. Jordan mainly uses
his mobile application to purchase books or just read samples of books. He could not read
summary or few sample pages of books of unknown writers. He wanted an application that can
allow him to read at least ten to fifteen pages of a book before he purchases it. He also faced

5INTERFACE ANALYSIS AND DESIGN
issues with buying the books that are in demand. As he does not open an application to see if that
book is available, he had to wait a lot until that book became properly available.
2.3 Hierarchical Task Analysis:
Figure 1: Hierarchical Task Diagram of Online Book Shop
(Source: Created by Author)
2.4 Environmental Analysis:
The design has been created considering the smart phone environment. Particularly
iPhone X has been chosen as the device based on which interface will be designed. Text fonts
and color will be eye-catchy as the mobile applications are likely to have contrast colors in
comparison with simple color of website. Each application installed in individual device can
support only one user at a time. If the system is used outdoor then under sunlight the dark colors
can be visible but it will be hard to see light colors. Even if small size of the dark color is within
light colors cannot be seen properly.