Designing with Data by Rochelle King & Elizabeth F. Churchill
Author:Rochelle King & Elizabeth F. Churchill
Language: eng
Format: epub, mobi
Publisher: O’Reilly Media, Inc.
Published: 2015-12-15T16:00:00+00:00
Figure Y: Percentage of actions over time
This visualization shows the relative amounts of time that people spent rewinding, playing, pausing and chatting per session. Clearly this shows that people main action was chatting. However, the more interesting story arose when we looked at the data over time. This is shown in Figure Z. When we first looked at this plot, we looked at actions as pulled from the data server according to what was then a “standard” session. Here the time of a session for the data pull was set to be a certain number of minutes (describe a session). We were curious to see the sharp drop of activity, a sign of low engagement for most end-user applications where action equates to engagement. However, in tandem with activity data and summary action data analysis we were conducting observational studies of users trying Zync. And we made an observation that seems obvious in hindsight, but was not obvious until we did the observational studies: for actions like watching a video, inaction or doing nothing, is a sign of engagement. To put it simply, if you were sitting on a couch watching a video and the person next to you keep chatting, nnin that content and doing nothing. With this insight in hand, we returned to our data and widened the time window for the log analysis, we created a human-activity driven session window rather than a system session window, and we saw something very interesting: the tall spike in activity that you see at the far right of Figure Z. When the video stopped playing, people started chatting, they resumed their engagement with each other. We thus defined a whole new set of methods for determining user engagement with the product, and created a set of design guidelines for data analysis for engagement as inaction. This example illustrates several things: First, we designed several content recommendation features for Zync based on what we learned, (2) we derived a set of instrumentation for experience mining recommendations, including consideration of what constitutes a session (3) data awareness here was the understanding of how to triangulate the different data types and reconsider the first analysis as potentially misleading based on an insights from another data set.
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