Problem
You would like to display the outcome of the Weight Shortest Job First equation in a Jira field.
Example WSJF Calculation
Weighted Shortest Job First (WSJF) is a prioritization model used to sequence work for maximum economic benefit. In SAFe, WSJF is estimated as the relative cost of delay divided by the relative job duration.
The actual calculation and prioritization are more straightforward than the explanation that brings us to this point. Compare jobs (three features, in this example) for each CoD component and job size using a simple table or spreadsheet (Figure 5). As with estimating stories, larger values reflect higher uncertainty.
Solution
This script assumes that there are custom fields for User Business Value, Time Criticality, Risk Reduction, and Job Size and that those fields also has SIL aliases created for them.
if(isNotNull(userBusinessValue) && isNotNull(timeCriticality) && isNotNull(riskReduction) && isNotNull(jobSize)) {
number costOfDelay = userBusinessValue + timeCriticality + riskReduction;
return round(costOfDelay/jobSize, 2);
}