The e-Visibility Maturity Model - Assessing Stages of Visibility Evolution for e-Business Topics: B2C/B2B Considerations; Industrial In Proceedings of the 4th International Conference on Data Communication Networking, 10th International Conference on e-Business and 4th International Conference on Optical Communication Systems - Volume 1: ICE-B, 163-170, 2013 , Reykjavík, Iceland