Figure 6

Screens Browser: Screen Result Summary. By expanding the "Screen Result Summary" and "Data Headers" sections of the Screens Browser, users may view the status and description of the screen result data. Since Screensaver allows result data to be imported as it becomes available, Screensaver tracks when screen result data was first created, and when it was last updated. Each screen result comprises an arbitrary set of Data Headers that describe the columns of "raw" and "derived" data, which are shown in the screen result data table (Figure 7). Derived data columns contain values calculated using values from earlier columns, and are used to record and present normalized and scored readout values, as well as the final determination of compounds identified as scoring positive in the screen (termed "Positives"). Positives data columns are treated specially, and may contain Boolean (true/false), partitioned (strong, medium, weak), or numeric values that exceed a screener-determined cutoff value. Note that for Positives data headers, users are shown the number of positives identified by the screener, both as an absolute number and as a percentage of the total number of experimental wells screened.