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User-Centered Design (7.1 user-centered design (5 stages (research:…
User-Centered Design
7.1 user-centered design
designer must not take in what she/she wants personally but what is best for the user they can do this with ...
deep understanding of user evaluation
user centered evaluation
5 stages
research: studies, interviews, questionnaires, and goals
concept: models, prototypes, testing, expert evaluation
design: diagram, prototypes, testing, evaluation, specifications
implementation: testing, evaluations
launch: competitor comparisons, testing, evaluation
7.3 Strategies for user research
Use research strategies based on user experiences of product, services, or system by...
user population
classification of users: age, gender, physical condition
use of personae, secondary personae , and anti-personae in user research (different perspectives)
use case: diagram of interactions or steps between user and product
scenarios provide physical and social context for different personae
7.4 Strategies for user-centered design
understanding of how a product service, or system is used will help reduce cots and efforts, while fulfilling requirements
field research
method of extremes
observation, interviews, and focus groups
questionnaires
affinity diagramming: collects large group of opinions in one diagram
particapatory design, prototype, and usability testing sessions
natural environment and usability labs: natural environments to test products in controlled environment.
testing houses v. usability labs
7.5 beyond usability- designing for pleasure and emotion
provide satisfaction through aesthetics appeal and pleasure can influence success. attitudes, expectations and motivations plays role in predicting product interaction. need to be sympathetic to user emotion.
design for emotion
ACT model 1)Attract 2)converse 3)transact
4 pleasure framework:
pyscho-pleasure (demands of product and emotional reactions during experience using it)
physio-pleasure (feel of product)
ideo-pleasure (aesthetically pleasing because VALUES)
socio-pleasure (social interaction)
7.2 usability
Design team must be user driven and come in contact with the user often. must test and evaluate as well as obtain psychological responses. must consider prior knowledge and experience of users.
enhanced objectives: product acceptance, user experience, productivity, reduce user error, training and support.
usability objects: usefulness, effectiveness, learn-ability, and attitude.
characteristics of good user-product interfaces: simplicity, ease of use, intuitive logic, low memory burden, visibility, feedback, affordance, mapping, constraints
population stereotypes: based on cultural expectations contribute to human error and designers must consider this when designing good user-product interfaces.