● Determine the severity (Table 55-2) and probability (Table 55-3) of the potential failure mode and look up the hazard score on the Hazard Score Matrix™ (Table 55-1). Go to the HFMEA™ Decision tree (Figure 55-2). Use the decision tree to determine whether the failure mode warrants further action. Record the action to “proceed” or to “stop” on the HFMEA™ Worksheet (Figure 55-3). ● List all of the failure-mode causes for each failure mode where the decision is to “Proceed” and record them on the HFMEA™ Worksheet, Line 3. (Hint: Remember that failure-mode causes are the reasons why something could go wrong. Each failure mode may have multiple failure-mode causes. For example, possible failure-mode causes for not being able to log in and delayed login with a computer would include the computer not being available, no power, and no log-in ID for the operator.)
STEP 5 ACTIONS and OUTCOME MEASURES
● Identify a Description of Action for each failure mode that will be eliminated or controlled. ● (Hint: Place the control measure in the process at earliest feasible point. Multiple control measures can be placed in the process to control a single hazard. A control measure can be used more than once in the process. Solicit input from the process owners if they are not represented on the team. Try to simulate any recommended process change to test them before facility-wide implementation.) ● Identify outcome measures that will be used to analyze, and test the redesigned process.