quartz/content/notes/observation.md

title	draft	sr-due	sr-interval	sr-ease
Observation	true	2022-05-03	30	246

#review

0.1.1 Review quesitons

1. How is observatio used in needfinding

2. how is observation used in evaluating desings

3. Name 3 disadvantages of observation

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Observation

1 Techniques

• think-aloud
• co-operative evaulation
• paper and pencil protocol
• audio recording
• video recording
• computer logging
• user notebooks
• post-talk walkthroughs

2 Disadvantages

• observation bias exists
• coding schemes
• laborioua and difficult
• experts needed, training needed
• often a mix of multiple techniques
• automatic protocol analysis tools available (esp. in usability labs)

3 Use Cases

Needfinding Evaluating designs