Noël Crespi

A business view for NGN service usage

Next generation networks are expected to deliver services tailored to all users, hence next generation services are moving toward user centric services, relying on multiple cooperating service platforms. To accomplish successfully the usage continuity between these user centric services, we need to model the link between the service as perceived by their end-users and the service platforms involved in the service implementation. Including the studies on services from ETSI and ITU-T with the concepts of the TMF, we propose a service business modeling approach to optimize NGN services architectures.

ITIL perspective on enterprise social media

Taxonomy of current ESM literature based on ITIL framework for IT service lifecycle management.ESM literature is mainly focusing on two lifecycle stages: strategy and transition.Highlights of the main remaining issues at each stage are provided.A complete vision of the overall lifecycle stages should be maintained while initiating an implementation of an ESM service. It starts from the enterprises strategic objectives to end with the usage evaluation. Enterprise Social Media (ESM) services have been largely considered in the literature as a new innovation; and thus a number of academic and industrial interests have been overlooked. This paper provides a new perspective of ESM literature, one that supports the claim that this research field should be considered as sustainable and no longer emergent. Based on ITIL framework for service lifecycle management, a total of 45 articles, spanning from 2010 to 2016, were analyzed to evaluate the current state of ESM literature. While summarizing and tabulating the literature findings for easy reference, the proposed taxonomy highlights that the main focus of researchers is on the stages of strategy and transition. It also highlights the remaining issues at each lifecycle stage and suggests future research directions.