Author Archives: John Flach

A Confession: Some Triggers and Blindspots

From the very beginning and throughout my career as an experimental psychologist, I have been trained to be an objective observer. I suspect that relative to other scientific disciplines, the emphasis on objectivity during my training has been greater than … Continue reading

Cognitive Science, Design, Human Experience, UX Design

CSE and UXD Different Paths to a Common Ground

Cognitive Systems Engineering (CSE) emerged from Human Factors as researchers began to realize that in order to fully understand human-computer interaction it was necessary to understand the ‘work to be done’ on the other side of the computer. They began … Continue reading


Safety Differently and Smokey the Bear.

Over the last 20 years or so, the vision of how to help organizations improve safety has been changing from a focus on ‘stamping out errors’ to a focus on ‘managing the quality of work.’ This change reflects a similar … Continue reading


CVDi Display: Promoting evidence-based decision-making in healthcare

The CVDi display for evaluating heart health has been updated. The new version includes an option for SI units.  Also, some of the interaction dynamics have been updated. This is still a work in progress, so we welcome feedback and … Continue reading


The “Little Data Problem” in Healthcare

The Big Data Problem and Visualization The digitization of healthcare data using Electronic Healthcare Record (EHR) systems is a great boon to medical researchers. Prior to EHR systems, researchers were responsible for collecting and archiving the patient data necessary to … Continue reading


EHR: Clumsy Automation Par Excellence

New study finds that physicians spend twice as much time interacting with EHR systems as interacting directly with patients. This is a classical example of clumsy automation. That is, automation that disrupts the normal flow of work, rather … Continue reading


Muddling Through in the ED

Introduction It has long been recognized that in complex work domains such as management and healthcare, the decision-making behavior of experts often deviates from the prescriptions of analytic or normative logic.  The observed behaviors have been characterized as intuitive, muddling … Continue reading

Cognitive Science, Human Experience, Uncategorized

Models: To Limit or Inform Human Muddling

The team at Mile Two recently created an App (CVDi) to help people to make sense of clinical values associated with cardiovascular health. The App is a direct manipulation interface that allows people to enter and change clinical values and … Continue reading


Going the Second Mile

I just completed my first month of work outside the walls of the Ivory Tower of academia. After more than forty years as a student and academic, I left Wright State University and joined a small tech start-up in Dayton … Continue reading


The Reification Problem: The Difference Between Naming and Understanding

In “The Pleasure of Finding Things Out” Richard Feynman tells this story about things his father did that helped teach him to think like a scientist: He had taught me to notice things and one day when I was playing … Continue reading