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managIng the Pstn transformatIon
have to be changed or new systems that have to be developed. Based
on that assessment, the implementation of changes is initiated and
executed, yielding an all-IP-ready IT infrastructure.
e following subactivities have to be performed:
1. Analysis of the functionality of the existing systems and pos-
sibility of adjustment
2. Decision for the adaptation of an existing or the implemen-
tation of a new system
3. Development of IT applications
4.3.1.2.1 List of the Applications/Systems to Be Adjusted or Developed
with Potential Issues and Solutions Based on identified changes with
the high-level design, cha