Table 2. Values and ranges of item–item and item–scale correlation coefficients
MarkCategory/subcategoryItemsCronbach αInternal correlationExternal correlation
ABUSINESS FUNCTIONALITY280.957
A1The management of legally prescribed content180.9510.683–0.7830.471–0.752
A2The management of additional and advanced administrative functionality100.8920.482–0.7280.297–0.713
BPRIVACY AND DATA SECURITY190.908
B1Protection against unauthorised access70.8930.552–0.7490.229–0.561
B2Managing user roles80.8590.465–0.7310.264–0.480
B3Data loss protection40.8170.523–0.7210.297–0.455
CDOMAIN (HEALTH) FUNCTIONALITY370.959
C1The organisation and control of data entry into the EHR200.9480.575–0.7780.198–0.624
C2Advanced systems for control and work support50.9530.758–0.9440.168–0.728
C3Accessibility and visibility of data in EHR120.9140.548–0.7770.105–0.605
DORGANISATIONAL AND COMMUNICATIONAL FUNCTIONALITY140.883
D1Data exchange with patients600.8720.614–0.7890.377–0.569
D2Data exchange with other health institutions50.671*0.223*–0.5690.180–0.584
D3Data exchange between FMPs30.637*0.265*–0.5870.220–0.492
EERGONOMIC FUNCTIONALITY190.944
E1Reliability, satisfaction and ease of use100.9330.651–0.8810.288–0.655
E2The ability to customise the user interface60.8810.525–0.8440.256–0.592
E3The quality of user manual30.9730.930–0.9540.438–0.645
FADDITIONAL SERVICES100.910
F1Quality of life improving modules and patient informing50.8560.626–0.7270.480–0.766
F2Advanced processing and data exchange50.8670.559–0.7970.486–0.714
  • * Slightly lower than the limit, but still satisfactory considering the field of application.