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The second user is a female home owner. She is a typical user among the targeted user population of the application. She didn't know the details had no prior knowledge of the application before the test. She was verbally introduced the purpose of the application first, and then given about ten minutes to play around it. After that we asked her to do the following specific tasks:
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- Data shown for the Daily tab actually contains hourly data. Today's total consumption, for example, can't be found in the Daily tab. To fix this, we can make today's total data shown on the chart in as text. We should also consider to add help at the bottom of the screen, similar to status bar of windowsWindows.
- Total is mistakenly considered the sum of all selected devices. This is not intended,Adding a separate line for the sum in the chart should solve the problem, and it has value in its own behalf.
- Back button doesn't work, and no undo Undo is not supported. This is a missing function and that we will add this in the future.
- No There is no obvious indication that user can swipe the chart to scroll. We plan to added clickable buttons at the left and right ends of the chart, which user can click to scroll the chart. Swiping is an efficiency feature for users more familiar to the applicationThis is another missing function that we will add in the future.
- Besides the issues above, the problems found in the first user test also found in this test.
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