The complexity of a Picture Archiving and Communication System (PACS) will induce the novice to guess system responses. Such guesses will be based on a conceptual model. Frustration will result if actual responses deviate from the expected ones. The paper suggests that human services offered in a radiology department can form the basis for suitable conceptual models both with respect to information and to attitude.
"Conceptual Models For Interactions With PACS", Proc. SPIE 0515, Medical Images and Icons, (3 August 1984); doi: 10.1117/12.964744; https://doi.org/10.1117/12.964744