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Types of Errors in Design
There are 2 types of errors:
slips(a person intends to do an action and ends up doing something else). Can be:action-based(correct action applied to the wrong object),memory-lapse(forgetting)mistakes(wrong goal or wrong plan formed). Can be:rule-based(correct diagnose, wrong action),knowledge-based(incorrect diagnose),memory-lapse(failing due to distraction)
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The 3 Levels of Processing that inform the 3 Stages of Action
There are 3 levels of processing that inform the action a user does:
- visceral (lowest level, correlated with calm and anxiety). Actions: perform and perceive.
- behavioural (middle level, correlated with expectations and emotions). Actions: specify and interpret.
- reflective (highest level, correlated with satisfaction). Actions: plan and compare.
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The fundamental concepts of Interaction
Affordances - the relationship between the properties of an object and the capabilities of an agent
Signifiers - an indicator that communicates appropriate behaviour to a person
Constraints - impediments of using a system
Mappings - the relationship between the elements of two sets of things
Feedback - communication of the results of an action
Conceptual model - explanation of how something works
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2 Innovation Forms
- Incremental - Continuous Testing and Refinement. Starts from an existing product. Called also Hill Climbing (move your foot in one direction - if it is uphill, take one step. If not, change direction. Do that until the top of the peak). Con: cannot find a higher hill.
- Radical - Starts fresh, many times from scratch. Offers potential very high opportunities. Con: the hill might be even lower than the one previously tried.
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IDEAS CURATED BY
User Researcher, passionate about behaviours and building the right products. I 'stash' about research, self-development and education.
Curious about different takes? Check out our The Design of Everyday Things Summary book page to explore multiple unique summaries written by Deepstash users.
Magda Mihalache's ideas are part of this journey:
Learn more about product with this collection
How to make rational decisions
The role of biases in decision-making
The impact of social norms on decision-making
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Different Perspectives Curated by Others from The Design of Everyday Things
Curious about different takes? Check out our book page to explore multiple unique summaries written by Deepstash curators:
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