HSB color model : a visual guide for adjusting colors

HSB (HSV) makes color adjustment easy. You can use HSB color model in most graphic design software. HSB components are hue (H), saturation (S) and brightness (B). When you understand what they do, yo... Read more

Product management, human-centered design and agile at Reaktor Innovations

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My teacher from Helsinki University, Department of Computer Science, has worked on combining human-centered design and agile software engineering at Reaktor since 2005, the beginning of that work. Als... Read more

Lean version of ISO 13407, the human-centered design standard

1. Understand supported activities situations and goals. Produces requirements. 2. Sketch outlines of functional solutions. Produces feedback.

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I outlined a user-centered design process model in my earlier article, but did not put it in context. Despite novel, peer reviewed user- and human-centered design methods exist, the meanings of the te... Read more

Five tips for improving privacy without sacrificing usability

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The business models of Apple, Google and Facebook build on good user experience, and on collecting information on users on the other hand. With billions of service users, personal data of whole nation... Read more

What is Interaction Design – in Finnish?

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Tanworth comb, an iron-age bronze comb (≈ 25–75 AD) What is Interaction Design – in Finnish? In a wider sense, user goals are taken as starting point, and interaction processes how these goals c... Read more

Screen and pixel sizes on phone and tablet devices

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The size of a pixel has been about standard, 38 pixels per centimeter (96dpi). When you talked of “14 pixel Arial” size, you used to be understood correctly, just like when you would speak of "the... Read more

Pen and touch screen wireframing

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Drawing wireframes on touch screen has several benefits compared to paper. An interactive prototype is more convincing than a mere picture, and needs less documentation. Digital text is easy and fast ... Read more

A User-Centered Design process: first draft

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A good service and user experience designer does two things: understands the needs that are related to a product or service, and creates solutions that fulfil these needs. The stages of creating and u... Read more

Usability Test and Contextual Interview

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Usability testing and contextual interview are very similar methods. Many specialists just have a tendency to focus on narrow, strictly-beforehand-defined questions in usability tests. This approach d... Read more

Good biking posture

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A good standing posture. Your bike handlebar influences your posture. Hybrid bikes have a straight handlebar. It pulls shoulders forward, pretty much like working on a computer, which is not healthy f... Read more

Usability test session structure

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I notice that I order usability test tasks usually in the following way: Participant's own tasks. "What did you do last when you used this? [...] Let's try this now." Structured tasks. "Your girlfrien... Read more

Simplicity and Elegance

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Not unlike the design ideal, Sacromonte and Alhambra in Granada, Spain are places of Simplicity and Elegance. Sacromonte is famous for its apartment caves and roots flamenco, a simple way of life. On ... Read more

Perceived quality is no guarantee of high quality UX evaluation

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In interactions between a usability expert and a customer, improving specialist expertise does not always enhance the customer's service experience. This is caused by the following forces: Problem bas... Read more

Untitled

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My boss and me publishing a report.... Read more

About me

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I can really relate with these Alan Cooper's words.... Read more