Introduction

when a particular signature appears,
how it might change in intensity as the user base grows or conditions for the crash change,
and how it might disappear or morf to a new signature as the result of fixes or code changes.

Details

then to answer the question "when did this signature appear" and isolate regression windows on branches we need another kind of x,y graph. the graphs should also allow us to do things like view "changes in crash intensity" branch to branch, and release to release,

where signature = XXXX where branch = 1.9.1

for period between STARTDATE and ENDDATE show counts of crashes received

            
            |
            |
            |                ,
 counts                    .
            |           .
            |         .
            |        .
            |    ....
   dates     1 2 3 4 5 6 7 8 9

it would also be good to be able to apply multiple branch and signature pairs to show up as several lines on the graph. this helps in things like "signature morfing" between releases, and isolate timing of when patches might have landed on different branches and started crash activity.