The National Health Service (NHS) has undergone rapid changes in the last few years. Most Hospitals have adopted IT solutions as Electronic Patient Record (EPR) systems instead of paper-based patient record.
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1. Introduction The National Health Service (NHS) has undergone rapid changes in the last few years. Most Hospitals have adopted IT solutions as Electronic Patient Record (EPR) systems instead of paper-based patient record. Their diffusion is frequently pushed by a vision of considerable time and cost savings, of increased quality of health work, and of a seamless integration with the existing local systems. On the other hand, the high complexities of the technology and possibly not adequate implementation strategies have led to failures. The degree of complexity and heterogeneity of this technology resembles the one of an Information Infrastructure. According to this framework, the EPR is an enabling, shared, open, heterogeneous socio-technical network built on an installed base. An infrastructural interpretation of the EPR implies its understanding as layers on an already existing installed base of technologies, processes, people, standards and knowledge. In this view the implementation process is considered to be...

