title: Functional analysis of interfaces in U.S. military electronic health record system using UFuRT framework.
abstract: The overall aim of this study is to evaluate the usability of U.S. military electronic health record (EHR) system AHLTA using a systematic work-centered evaluation framework UFuRT --- User, Functional, Representational, and Task Analysis. This paper with the focus of Functional Analysis (FA) of AHLTA explores operationalizable methods to study functions supported by user interfaces. A system hierarchy was created to map and uniquely identify all items on the interfaces. These items were then classified independently by 2 evaluators as Operations or Objects. Operations were further classified as either Domain or Overhead function. With acceptable inter-rater agreement, of the 1996 items in the interfaces, 61% were operations, around one fourth of which were Overhead functions. Overhead functions are hypothesized to be targets to be redesigned for improvements in usability.
authors.affiliation: The University of Texas Health Science Center at Houston, Texas, USA.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Zhang
authors.forename: Muhummad F
authors.initials: MF
authors.lastname: Walji
authors.forename: Vimla L
authors.initials: VL
authors.lastname: Patel
authors.forename: Ronald W
authors.initials: RW
authors.lastname: Gimbel
authors.forename: Jiajie
authors.initials: J
authors.lastname: Zhang
mesh_terms: D057286:Electronic Health Records; D006801:Humans; D008490:Medical Informatics; D016347:Medical Records Systems, Computerized; D008887:Military Medicine; D013647:Task Performance and Analysis; D014481:United States; D014584:User-Computer Interface