This volume constitutes the proceedings of the 8th IFIP WG 8.1 Conference on the Practice of Enterprise Modeling held in November 2015 in Valencia, Spain. The PoEM conference series started in 2008 and aims to provide a forum sharing knowledge and experiences between the academic community and practitioners from industry and the public sector. The 23 short papers accepted were carefully reviewed and selected from 72 submissions and are organized in eight sections on Evolving Enterprises, Securing Enterprises, Making Empirical Studies, Investigating Enterprise Methods, Acquiring User Information, Managing Risks and Threats, Engineering Methods, and Making Decisions in Enterprises.

These archaeological studies offer to provide an alternative tour through Vesuvian cities. One way to see Pompeii, for example, is via its hydraulic systems, from the higher parts to waterlogged landfills at the mouth of Sarno. They invite you to walk the streets amidst the traces of regulation issued in municipal law and the free initiative of those who built and maintained the sidewalks. The graffiti and paintings allow us to take a tour specially designed to understand the tastes and devotions of the inhabitants of the Vesuvian cities. Thus, disparate themes researched separately may be presented here as a coherent work that initiates the visitor into Vesuvian studies. Each author gives us a particular tour of the specifics of the cities and villages of the Vesuvian area, its story, furniture, findings and the research process that has been developed over many years.