In Context: Event Logging for Usability

Using event logs for usability analyses has a rich history in the HCI Field. For a complete review, see Hilbert & Redmiles (1999) (PDF). They propose a categorization of methods for supporting event log analysis. Here's a mapping of those categories to Uzilla features:

Event Log Analysis Categories	Expression in Uzilla
Synchronization and Searching	Integration of survey data with task and page progress
Transformation	Abstraction of mousemovement into vectors
Counts and Summary Statistics	Time on page, time on task, mouse miles per task
Sequence Detection	Back button sequences
Sequence Comparison	Observed vs optimal path
Sequence Characterization	More fine grained measures of optimality and error on the way.
Visualization	Intra page and page flow viz
Integrated Support	Usability testing protocol support is a key aspect of Uzilla.

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