
16
managIng the Pstn transformatIon
the financial impact should be calculated when these risks can be fore-
seen and all risks should be reported and followed in order to mitigate
them appropriately. e risk quality analysis and assessment is based
on the migration plan for the remaining execution phase. Due to the
long-term duration of the PSTN migration project, there could be
many risk sources during the whole project duration.
During PSTN migration, risks can be inflicted by the project itself,
Deutsche Telekom AG or operator level (micro environment), and
ecosystem (macro environment). erefore, it is important to iden-
tify and structure poten ...