You want to be looking at this from a number of angles. A non-exhaustive list might contain:
-1, 0, 1 Point Cost
End date before start date
Alphanumeric Point Cost
Title prevents > 30 characters
Entering different date formats (mm/dd/yyyy, dd/mm/yyyy, yyyy,mm,dd)
Observing system behaviour when one of more ...
QA engineers in qa testing companies face this problem with development team if processes are not properly followed between teams.
The best way to reduce these type of problems is to use agile environment where there will be a process of meetings for every defined sprint.
All the QA and Dev actions are done within the sprint cycle. Moreover, all the ...