Table 1.

Characteristics of Beta and the dataset

EHR application	Hospital characteristics	Time of data collection & dataset
RiO version 5.0;	Large;	May 2009-November 2010;
Software developer:	Multisite;	48 face to face interviews:
CSE Healthcare Systems	Teaching;	6 Senior manager and members of the Board
(http://www.cse-healthcare.com)	Foundation (i.e. more autonomous); covering over 500,000 people; with an annual turnover in excess of of £130m	14 Implementation team and IT managers,
		20 Healthcare practitioners: 2 inpatient nurse,
		7 community nurse, 5 psychiatric consultants & 1 junior doctor, 1 pharmacists, 3 social worker,
		1 occupational therapist, 2 Administration staff,
		4 NPfIT, 1 BT, 1 External IM & T consultant.
		65 categories of hospital documents from various types; and
		26 hours on-site observation