User experience design

Software development process
Core activities
Paradigms and models
Methodologies and frameworks
Supporting disciplines
Tools
Standards and BOKs

User Experience Design (UXD or UED or XD) is the process of enhancing user satisfaction by improving the usability, accessibility, and pleasure provided in the interaction between the user and the product.[1] User experience design encompasses traditional human–computer interaction (HCI) design, and extends it by addressing all aspects of a product or service as perceived by users.[2]

History

The field of user experience design has roots in human factors and ergonomics, a field that, since the late 1940s, has focused on the interaction between human users, machines, and the contextual environments to design systems that address the user's experience.[3] With the proliferation of workplace computers in the early 1990s, user experience became an important concern for designers. It was Donald Norman, a user experience architect, who coined and brought the term user experience to wider knowledge.[4]

I invented the term because I thought human interface and usability were too narrow. I wanted to cover all aspects of the person's experience with the system including industrial design graphics, the interface, the physical interaction and the manual. Since then the term has spread widely, so much so that it is starting to lose its meaning.
— Donald Norman[5]

The term also has a more recent connection to user-centered design, human–computer interaction, and also incorporates elements from similar user-centered design fields.

Elements of User Experience Design

User experience design includes elements of interaction design, information architecture, user research, and other disciplines, and is concerned with all facets of the overall experience delivered to users. Following is a short analysis of its constituent parts.

Visual design

Visual design, also commonly known as graphic design, communication design, and visual communication, represents the aesthetics or look-and-feel of the front end of any user interface. Graphic treatment of interface elements is often perceived as the visual design. The purpose of visual design is to use visual elements like colors, images, and symbols to convey a message to its audience. Fundamentals of Gestalt psychology and visual perception give a cognitive perspective on how to create effective visual communication.[6]

Information architecture

Information architecture is the art and science of structuring and organizing the information in products and services, supporting usability and findability.

In the context of information architecture, information is separate from both knowledge and data, and lies nebulously between them. It is information about objects. The objects can range from websites, to software applications, to images et al. It is also concerned with metadata: terms used to describe and represent content objects such as documents, people, process, and organizations.

Structuring, organization, and labeling

Structuring is reducing information to its basic building units and then relating them to each other. Organization involves grouping these units in a distinctive and meaningful manner. Labeling means using appropriate wording to support easy navigation and findability.

Finding and managing

Findability is the most critical success factor for information architecture. If users are not able to find required information without browsing, searching or asking, then the findability of the information architecture fails. Navigation needs to be clearly conveyed to ease finding of the contents.

Interaction Design

Main article: interaction design

There are many key factors to understanding interaction design and how it can enable a pleasurable end user experience. It is well recognized that building great user experience requires interaction design to play a pivotal role in helping define what works best for the users. High demand for improved user experiences and strong focus on the end-users have made interaction designers critical in conceptualizing design that matches user expectations and standards of the latest UI patterns and components. While working, interaction designers take several things in consideration. A few of them are:[7]

In the last few years, the role of interaction designer has shifted from being just focused on specifying UI components and communicating them to the engineers to a situation now where designers have more freedom to design contextual interfaces which are based on helping meet the user needs.[8] Therefore, User Experience Design evolved into a multidisciplinary design branch that involves multiple technical aspects from motion graphics design and animation to programming.

Usability

Main article: usability

Usability is the extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use.[9]

Usability is attached with all tools used by humans and is extended to both digital and non-digital devices. Thus it is a subset of user experience but not wholly contained. The section of usability that intersects with user experience design is related to humans' ability to use a system or application. Good usability is essential to a positive user experience but does not alone guarantee it.[10]

Accessibility

Main article: accessibility

Accessibility of a system describes its ease of reach, use and understanding. In terms of user experience design it can also be related to the overall comprehensibility of the information and features. It contributes to shorten the learning curve attached with the system. Accessibility in many contexts can be related to the ease of use for people with disabilities and comes under usability.[11]

Human–computer interaction

Human–computer interaction is concerned with the design, evaluation and implementation of interactive computing systems for human use and with the study of major phenomena surrounding them.[12]

Human–computer interaction is the main contributor to user experience design because of its emphasis on human performance rather than mere usability. It provides key research findings which inform the improvement of systems for the people. Human-computer interaction extends its study towards more integrated interactions, such as tangible interactions, which is generally not covered in the practice of user experience. User experience cannot be manufactured or designed; it has to be incorporated in the design. Understanding the user's emotional quotient plays a key role while designing a user experience. The first step while designing the user experience is determining the reason a visitor will be visiting the website or use the application in question. Then the user experience can be designed accordingly.

Design

Main article: design

User experience design incorporates most or all of the above disciplines to positively impact the overall experience a person has with a particular interactive system and its provider. User experience design most frequently defines a sequence of interactions between a user (individual person) and a system, virtual or physical, designed to meet or support user needs and goals, primarily, while also satisfying systems requirements and organizational objectives.

Typical outputs include:

General design process

The steps involved in the process are:

The UX designer needs to find out as much as she can about people, process, and products before the design phase. The designers can do this by meeting with the clients or business stakeholders frequently to know what their requirements are. Designers also conduct interviews with users in their home or work spaces. This kind of qualitative research helps designers create products and service that better serve user needs.

After research, the designer must make sense of the data they've collected. Typically this is done through modeling of the users and their environments. User modeling or personas are composite archetypes based on behavior patterns uncovered during research. Personas provide designers a precise way of thinking and communicating about how groups of users behave, how they think, what they want to accomplish and why. [13] Once created, personas help the designer to understand the users' goals in specific contexts, which is particularly useful during ideation and for validating design concepts. Other types of models include work flow models, artifact models, and physical models.

When the designer has a firm grasp on the user's needs and goals, she begins to sketch out the interaction framework (also known as wireframes). This stage defines the high-level structure of screen layouts, as well as the product's flow, behavior, and organization. There are many kinds of materials that can be involved in during this iterative phase, from whiteboards to paper prototypes. As the interaction framework establishes an overall structure for product behavior, a parallel process focused on the visual and industrial designs. The visual design framework defines the experience attributes, visual language, and the visual style.[14]

Once a solid and stable framework is established, wireframes are translated from sketched storyboards to full-resolution screens that depict the user interface at the pixel level. At this point, it's critical for the programming team to collaborate closely with the designer. Their input is necessary to creating a finished design that can and will be built while remaining true to the concept.

Usability testing is carried out through prototypes. The target users are given various tasks to perform on the prototypes. Any issues or problems faced by the users are collected as field notes and these notes are used to make changes in the design and reiterate the testing phase.[15] Usability testing is, at its core, a means to "evaluate, not create". [16]

UX Deliverables

UX designers' main goal is to solve the end-users' problems. Communicating the design is a critical part of the design process. A designer may have the best design created, but if they cannot communicate it well to their stakeholders and developers, the design will fail. The UX specification documents depend on the client or the organization involved in designing a product. The four major deliverables are: a title page, an introduction to the feature, wireframes and a version history.[17] Depending on the type of project, the specification documents can also include flow models, cultural models, personas, user stories, scenarios and any prior user research. Documenting design decisions, in the form of annotated wireframes, gives the developer the necessary information she may need to successfully code the project.

Depending on the company, a user experience designer may need to be a jack of all trades. It’s not uncommon to see a user experience designer jump in at the beginning of the project lifecycle, where the problem set and project definition is vague. Or after the project requirements document has been finalized and wireframes and functional annotations need to be created.

What responsibilities does a user experience designer have in each phase of a project?

At the beginning, when the project is more conceptual:

While the project is underway:

After the project has launched:

Designers

As with the fields mentioned above, user experience design is a highly multi-disciplinary field, incorporating aspects of psychology, anthropology, architecture, sociology, computer science, graphic design, industrial design, cognitive science, and business. Depending on the purpose of the product, UX may also involve content design disciplines such as communication design, instructional design, and game design. The subject matter of the content may also warrant collaboration with a subject-matter expert on planning the UX from various backgrounds in business, government, or private groups. More recently, content strategy has come to represent a sub-field of UX.

Graphic designers

Graphic designers focus on the aesthetic appeal of the design. Information is communicated to the users through text and images. But a lot of importance is given to how the text and images look and attract the users. Graphic designers have to make choices like font color, font type, image locations etc. Graphic designers focus to grab the user's attention with the way the design looks.

Visual designers

The visual designer (VisD) ensures that the visual representation of the design effectively communicates the data and hints and the expected behavior of the product. At the same time, the visual designer is responsible for conveying the brand ideals in the product and for creating a positive first impression; this responsibility is shared with the industrial designer if the product involves hardware. In essence, a visual designer must aim for maximum usability combined with maximum desirability. [19]

Interaction Designers

Interaction designers (IxD) are responsible for understanding and specifying how the product should behave. This work overlaps with the work of both visual and industrial designers in a couple of important ways. When designing physical products, interaction designers must work with industrial designers early on to specify the requirements for physical inputs and to understand the behavioral impacts of the mechanisms behind them. Interaction designers cross paths with visual designers throughout the project. Visual designers guide the discussions of the brand and emotive aspects of the experience, Interaction designers communicate the priority of information, flow, and functionality in the interface.[20]

Testing the design

Main article: Usability testing

Usability testing is the most common method used by designers to test their designs. The basic idea behind conducting a usability test is to check whether the design of a product or brand works well with the target users. While carrying out usability testing, two things are being tested for: Whether the design of the product is successful and if it is not successful, how can it be improved. While designers are testing, they are testing the design and not the user. Also, every design is evolving. The designers carry out usability testing at every stage of the design process.

Benefits

User experience design is integrated into software development and other forms of application development to inform feature requirements and interaction plans based upon the users' goals. Every new software introduced must keep pace with the rapid technological advancements. The benefits associated with integration of these design principles include:

Criticism

The discipline of user experience design, though still in its infancy and without a universally recognized definition, remains subject to criticism. Critics of user experience design argue that:

User experience compared with experience design

Experience takes into account the feelings people have while using a particular product. These feelings can range from satisfaction to frustration. User experience design caters to how products should be designed in order to increase the usability provided in the interaction between the user and the product.


See also

References

  1. ↑ Kujala, Sari; Roto, Virpi; Väänänen-Vainio-Mattila, Kaisa; Karapanos, Evangelos; Sinneläa, Arto (2011). "UX Curve: A method for evaluating long-term user experience". Interacting With Computers 23 (5): 473–483. doi:10.1016/j.intcom.2011.06.005. Retrieved 20 April 2014.
  2. ↑ "design in motion". IBM Design. Retrieved 2015-06-18.
  3. ↑ Human Factors and Ergonomics Society. HFES History.
  4. ↑ uxdesign, "UX Design Defined", 16/08/2010
  5. ↑ Merholz, Peter (2007). "Peter in Conversation with Don Norman About UX & Innovation". Adaptive Path.
  6. ↑ "Visual Design Web Style Guide 3". Web Style Guide. Retrieved 2015-06-18.
  7. ↑ Psomas, Steve (2007). "The Five Competencies of User Experience Design". UX Matters.
  8. ↑ Lowgren, Jonas. "Interaction Design - brief intro". The Interaction Design Foundation. Retrieved 2015-06-18.
  9. ↑ "International Standards". UsabilityNet. 1998. Retrieved 2015-06-18.
  10. ↑ Marcus, Aaron (2015). Design, User Experience, and Usability: Design Discourse. p. 340. ISBN 3319208861. Retrieved 26 July 2015.
  11. ↑ Butters, Kerry (16 October 2014). "The Fundamentals of Great UX". Retrieved 26 July 2015.
  12. ↑ "Curricula for Human-Computer Interaction, Chapter 2. Definition and Overview of Human-Computer Interaction". ACM SIGCHI. Retrieved 2015-06-18.
  13. ↑ Cooper, Alan; Reimann, Robert; Cronin, David; Noessel, Christopher. About Face: The Essentials of Interaction Design (4th ed.). Wiley. p. 62. ISBN 978-1-118-76657-6.
  14. ↑ Cooper, Alan; Reimann, Robert; Cronin, David; Noessel, Christopher (2014). About Face: The Essentials of Interaction Design (4th ed.). Wiley. p. 131. ISBN 978-1-118-76657-6.
  15. ↑ Treder, Marcin (2012-08-29). "Beyond Wireframing: The Real-Life UX Design Process". Smashing Magazine. Retrieved 2015-06-18.
  16. ↑ Cooper, Alan; Reimann, Robert; Cronin, David; Noessel, Christopher (2014). About Face: The Essentials of Interaction Design. Wiley. p. 140. ISBN 978-1-118-76657-6.
  17. ↑ Kiess, Chris (2014-05-07). "A Practical Guide to UX Specifications". C L Kiess. Retrieved 2015-06-18.
  18. ↑ "What’s the Difference Between a User Experience (UX) Designer and a User Interface (UI) Designer? - Zanthro". Retrieved 2015-09-24.
  19. ↑ Goodwin, Kim (2009). Designing for the Digital Age. Wiley. p. 21. ISBN 978-0-470-22910-1.
  20. ↑ Cooper, Alan; Reimann, Robert; Cronin, David; Noessel, Christopher. About Face: The Essentials of Interaction Design (4th ed.). p. 153. ISBN 978-1-118-76657-6.

Further reading


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