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. 2017 Feb 10;2016:421–430.

Table 3.

Calculations to Estimate Resources for EHR Refinement Based on Calibration Metrics

Change Process Applicable Calibration Metric Categorization Time Estimate
EHR Configuration Build Not Complex: High undergeneration rate indicating need to add missing clinical data elements (CDEs) 5 min/ CDE
Average Complexity: High substitution or overgeneration indicating need to swap out CDEs or delete superfluous CDEs 25 min/ CDE
Highly Complex: High rate of at least two of three (undergeneration, substitution, overgeneration) indicating need to redesign artifacts 200 min/ CDE
Subject Matter Expert Review (as needed) Not Complex: no communication or review required 0 hours
Average Complexity: communication that change occurred 1 - 2.5 hours/DF
Highly Complex: review of changes to ensure clinical appropriateness 2.5 - 5 hours/DF
EHR Unit Testing Not Complex: High undergeneration rate indicating need to add missing CDEs 10 min/CDE
Average Complexity: High substitution or overgeneration indicating need to swap out CDEs or delete superfluous CDEs 50 min/CDE
Highly Complex: High rate of at least two of three (undergeneration, substitution, overgeneration) indicating need to redesign artifacts 400 min/CDE