Optimal
Data-Based Business Process Rules
•As
soon as possible… the row ends up in a state where it need never
again be touched by the database, except under rare circumstances.
–Corollary
#3: Summarizing or reporting old events need only happen at most
once, for any given event date range. Re-summarizing the same old
data repeatedly implies that we either “forgot” to re-use the
former result, or we suspect that history has been rewritten, both
of which tend to point to a process failure!