?? Network transformation may require the evolution of multiple network layers in the same timeframe ?? Network usage is application driven, and there is a great deal of uncertainty in applications demand and user behavior ?? Operators face critical choices in network architecture and technology that can have great impact on their business goals ?? A unified multi-service, multi-layer and multi-vendor approach is needed ?? Common application traffic modeling ?? Flow through of results ?? Sophisticated optimization algorithms ?? Automation for what-if studies ?? Models that link technical and financial analysis ?? The problems are too complex for traditional planning methods
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