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A persona-based approach to domestic energy retrofit

Take into account your goals, as you start this iterative process of product design and development. This process should be repeated until the best design is achieved. Typically the following areas are analysed to get a better idea of what your target users want:. Webcredible provides a handy guide to which technique to use and when:.

The user-centered design process answers crucial questions about users, about their tasks, goals and beliefs. The following questions are typically asked during the UCD process: Who uses your product? What are their goals? What are users searching for? What are they interested in?

How do your users see the process of completing a task? What do they say and how they do it? How easy is it for your users to understand what they should do using your product? How much time do users spend on figuring our how to actually do what they want to do? And many others. Agile methods are becoming increasingly common in software design and development, with their collaborative customer focus and iterative, test -driven approach.

They are gaining acceptance in organisations as an efficient and effective ways to developing software products that make a difference. And user-centered design fits very well with Agile. Mind you, user-centered design also fits in with other development methodologies, including the dreaded waterfall methodology. Here you will see some advantages brought about by the incorporation of user-centered design with an Agile methodology:.

If you look at leading companies like Mango, HSBC, Edreams and others, you will see that they went through an agile transformation and now they are adopting this user-entered approach.

These two methodologies go together, and I believe that they are key to successful innovation. Good luck on your learning journey! Lead image: Depositphotos — affiliate link. Read more about us Become an Author at UsabilityGeek.

IFIP TC13 Open Symposium on HCI - March 10th, - IFIP TC13

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This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information. What is User-Centered Design? A more formal definition is the one provided by the Interaction Design Foundation: User-centered design UCD is an iterative design process in which designers and other stakeholders focus on the users and their needs in each phase of the design process. Incorporating user feedback to define requirements and design.

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Early and active involvement of the user to evaluate the design of the product. Integrating user-centred design with other development activities.


Iterative design process It is quite simple — if you change the design late in the process, then it will typically cost ten times more than if you changed it during the requirements stage. The Essential Elements of User-Centered Design Visibility : Users should be able to see from the beginning what they can do with the product, what is it about, how they can use it. Accessibility : Users should be able to find information easily and quickly.

They should be offered various ways to find information for example call to action buttons, search option, menu, etc. Legibility: Text should be easy to read. As simple as that. Language: Short sentences are preferred here. The easier the phrase and the words, the better.

Typically the following areas are analysed to get a better idea of what your target users want: Persona: To visualise it better, a persona is created at the beginning of the process to have an example of a target, who you are trying to reach. You can even come up with the name. It is a representation of a particular group of people with the same patterns; behaviour, needs, goals, skills, attitudes, etc.

Persona helps to make right decisions about product features, navigation , interactions, visual design and much more. It helps you prioritise the design work, understanding what the user needs and what functions are simply nice to add and have. It is about problems persona has. Here, small details both emotional and physical ones, matter. Use case: It is a series of steps for the persona to achieve the goal.

Webcredible provides a handy guide to which technique to use and when: Popular user-centered design methods Source: WebCredible The user-centered design process answers crucial questions about users, about their tasks, goals and beliefs. The term Leiben Lawrence design was coined by Bill Moggridge [2] and Kaye Lonzaga in the mids, but it took 10 years before the concept started to take hold.

The institute moved to Milan in October and merged with Domus Academy. In , the Swedish Foundation for Strategic Research founded The Interactive Institute —a Swedish research institute in the field of interaction design. Goal-oriented design or Goal-Directed design "is concerned with satisfying the needs and desires of the users of a product or service. Alan Cooper argues in The Inmates Are Running the Asylum that we need a new approach to solving interactive software-based problems.

Cooper introduces the concept of cognitive friction, which is when the interface of a design is complex and difficult to use, and behaves inconsistently and unexpectedly, possessing different modes.

User needs may be poorly served by this approach. Usability answers the question "can someone use this interface? Jacob Nielsen describes usability as the quality attribute [10] that describes how usable the interface is. Shneiderman proposes principles for designing more usable interfaces called "Eight Golden Rules of Interface Design" [11] —which are well-known heuristics for creating usable systems.

Personas are archetypes that describe the various goals and observed behaviour patterns among users. A persona encapsulates critical behavioural data in a way that both designers and stakeholders can understand, remember, and relate to. Personas use storytelling to engage users' social and emotional aspects, which helps designers to either visualize the best product behaviour or see why the recommended design is successful.

The cognitive dimensions framework [13] provides a vocabulary to evaluate and modify design solutions. Cognitive dimensions offer a lightweight approach to analysis of a design quality, rather than an in-depth, detailed description. They provide a common vocabulary for discussing notation, user interface or programming language design. Dimensions provide high-level descriptions of the interface and how the user interacts with it: examples include consistency , error-proneness , hard mental operations , viscosity and premature commitment.

These concepts aid the creation of new designs from existing ones through design maneuvers that alter the design within a particular dimension. Designers must be aware of elements that influence user emotional responses. For instance, products must convey positive emotions while avoiding negative ones. One method that can help convey such aspects is for example, the use of dynamic icons, animations and sound to help communicate, creating a sense of interactivity. Interface aspects such as fonts, color palettes and graphical layouts can influence acceptance.

Studies showed that affective aspects can affect perceptions of usability. Emotion and pleasure theories exist to explain interface responses. The concept of dimensions of interaction design were introduced in Moggridge's book Designing Interactions. Crampton Smith wrote that interaction design draws on four existing design languages, 1D, 2D, 3D, 4D. Visual representations are the elements of an interface that the user perceives; these may include but are not limited to "typography, diagrams, icons, and other graphics". The time during which the user interacts with the interface.

An example of this includes "content that changes over time such as sound, video or animation". Behaviour defines how users respond to the interface. Users may have different reactions in this interface. The Interaction Design Association [19] was created in to serve the community.

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