Next Generation Network (NGN) is an innovative revenue stream for the service providers from
the increase of their service offerings. Therefore it is important to understand how proposed
solutions in NGN markets can enable flexible and easy service creation delivery and management
both to service providers as well as third party application developers. Consequently this
book provides guidelines for the NGN service platforms evaluation in terms of functionality
programmability flexibility openness and inter-operability. In other words the objective is
to revise some of the major benefits promised by NGN namely productivity creativity and new
revenues from new business opportunities and to overhaul how well current product offerings
can support these capabilities with available service development tools.