Page History

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This design involves two pages: managing/viewing all timers and working with individual timers.

Storyboard

Wiki MarkupJohn arrives at the timer creation page after clicking the link from the main page. He can enter the date by typing into an input field or by clicking a calendar icon which displays a calendar from which the date can be selected. The time can also be set via another input field. A title and description can be entered, and there is a formatting toolbar for the description. Sharing can also be specified here and is discussed in the next section. After creating a timer, its specific details are shown in a timer view window. \
[figure 1: create\]

Wiki MarkupTo share, John can directly share from the timer creation page or at a later time. Let's suppose he shares it upon creation. A new window is displayed, and he can either add names from an autocomplete form, or by selecting from his entire list of contacts. \
[figure 2: sharing\]unmigrated-wiki-markup

To view timers, John goes to the main page, which has a list of timers that he has created or that have been shared with him by other users. Timers created by others are italicized, and the timer's creator is shown underneath. They are ordered chronologically with the nearest events at the top and later events below. A countdown is displayed next to the time for a particular timer. Pending timers that another user has shared with John appear in red text in his timeline. They are also displayed in a list of pending timers which can be found in the upper right corner. From either location, John can add the timer or ignore the sharing action. Clicking on a timer title goes to a new page showing details for that specific timer. \
[figure 3: viewing\]

Analysis

In terms of learnability, this design is fairly good. The links for the main tasks are immediately visible, and the links for other tasks are visible on a specific timer's page or accessible from an arrow next to a timer's title on the main page. However, the sharing system is not probably great for learnability. Because there are two possible methods to select users to share a timer with, there is some inconsistency in how the same information is displayed across these two methods. Futhermore, it might not be obvious that a red timer in the viewing page is a pending timer share from another user. The pending timers button on the upper right helps the user eventually learn the notation unless he reads the instructions.

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