In Italy there was since 2003 specific privacy regulation to adopt when an EHR is implemented and in Europe the General Data Protection Regulation was adopted in May 2016. (details here: http://ec.europa.eu/justice/data-protection/reform/index_en.htm)
HIMMS has a very useful 7-stage model to measure hospital EHR implementations in the USA and also in Europe. Hospitals at stages 6 and 7 have implemented fully integrated EHRs. This is a vendor neutral model, so it does not matter which combination of software products are used, and in most hospitals there are a wide variety in use.