Archive for March, 2013

Hassenzahl’s Model Of UX

March 26, 2013

hassenzahls-model2
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Several models of UX have been suggested, some of which are based on Hassenzahl’s model. This model assumes that each user assigns some attributes to a product or service when using it. As we will see, these attributes are different for each individual user. UX is the consequences of these attributes plus the situation in which the product is used.
The attributes can all be grouped into four main categories: manipulation, identification, stimulation and evocation. These categories can, on a higher level, be grouped into pragmatic and hedonic attributes. Whereas the pragmatic attributes relate to the practical usage and functions of the product, the hedonic attributes relate to the user’s psychological well-being. Understanding the divide can help us to understand how to design products with respect to UX, and the split also clarifies why UX itself cannot be designed.
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Helge Fredheim: Why User Experience Cannot Be Designed

Designing with context

March 22, 2013

Great article by Cennydd Bowles describing the seven flavours of context:

Device context

  • What devices will this product be used on?
  • How about in a year’s time? Three? Five?
  • What can those devices do? What can’t they do?
  • What sort of interactions do these devices suit?
  • Are there unique device capabilities we can use to our advantage?
  • How does our site work on devices that don’t have those capabilities?
  • Are there device capabilities that might make life more difficult? How can we mitigate their impacts?

Environmental context

  • Will the site be used indoors or outdoors?
  • Should weather conditions affect my design?
  • What environmental information sources are relevant to the interaction?
  • Will a user understand why, and how, my system is adapting to the environment?
  • How can I make my product feel natural within its environment?

Activity context

  • Do users have simple tasks to fulfil, or a more complex network of activities?
  • Are these activities or tasks digital, or do they support real-world activities?
  • Does the current activity have a physical component? How can we support that?
  • Are the interactions likely to be lean-forward, lean-back, or both?

Individual context

  • Can we use any stated preferences to tailor the system to an individual user?
  • Is it appropriate to let users explicitly state preferences for this interaction?
  • What sort of emotional connection will users have with our site, and the devices they access it from?
  • What mental attitudes do users bring to the interaction?

Location context

  • Do users have location-specific needs?
  • Will access to the user’s location improve the service my app can offer?
  • How can I best communicate why a user should grant location access?
  • Can I present location information in a more human-friendly format than long/lat?
  • How can I be sure my location assumptions are accurate?

Social context

  • Will the app be used in solo, private contexts, or in public?
  • Are there ways to reduce any risk of embarrassment or public discomfort for the user?
  • Who else is involved in this activity other than the end user?
  • Is there benefit in asking the user to authorise my app with their social networks?
  • Does my app protect the user’s sensitive information with sufficient care?

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Context design principles

  • Context is multi-faceted.
  • Don’t penalise people for their contexts.
  • Assume gently.
  • Allow adaptability.
  • Revisit your decisions.