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--- school:classes:cs352:start [20 years ago - 2006/03/02 23:55] – aogail
+++ school:classes:cs352:start [19 years ago - 2007/05/28 06:45] (current) – external edit 127.0.0.1
@@ Line 947: / Line 947: @@
     * Not all you need.
-==== Heuristic Evaluation ====
+==== HE Overview ====
   * Developed by Jacob Nielsen.
@@ Line 1019: / Line 1019: @@
     * Find different problems.
     * Don't waste participants.
+==== HE Results ====
+  * Single evaluator achieves poor results.
+    * Only finds 35% of usability problems.
+  * 5 evaluators find ~75% of problems.
+    * If they work as team, it's back down to 35%.
+  * Why not more evaluators?
+    * Adding evaluators costs more.
+    * Many more evaluators won't find many more problems.
+===== Evaluation (2) & Wrap-Up =====
+==== Evaluation Pt. 2 ====
+=== Usability Testing: The Usability Lab ===
+  * A specially designed room for conducting controlled experiments observing a task.
+  * Cameras, logging systems, people track what users do.
+  * Good lab costs $$$.
+== Observation Room ==
+  * Three cameras capture subject, subject's monitor, and composite picture.
+  * One-way mirror plus angled glass captures light and isolates sound between rooms.
+  * Room for several observers.
+  * Digital mixer for mixing of input images and recording to media.
+== Other Capture - Software ==
+  * Modify software to log user actions.
+  * Can give time-stamped keypress/mouse events -- sync with video
+  * Commercial software available ($$$)
+  * Two problems:
+    * Too low level, want higher level events
+    * Massive amount of data; need analysis tools
+== Complimentary Methods ==
+  * Talkaloud protocols
+  * Pre/post surveys
+  * Participant screening/normalization
+  * Compare results to existing benchmarks