Add a command line argument for the effort adjustment factor.

Author: fschaefer

main.go

@@ -114,6 +114,12 @@ func main() {
 		2.4,
 		"set the overhead multiplier for corporate overhead (facilities, equipment, accounting, etc.)",
 	)
+	flags.Float64Var(
+		&processor.EAF,
+		"eaf",
+		1.0,
+		"the effort adjustment factor derived from the cost drivers (1.0 if rated nominal)",
+	)
 	flags.BoolVar(
 		&processor.Cocomo,
 		"no-cocomo",

processor/cocomo.go

@@ -32,8 +32,7 @@ func EstimateCost(effortApplied float64, averageWage int64, overhead float64) fl
 }
 
 // EstimateEffort calculate the effort applied using generic COCOMO weighted values
-func EstimateEffort(sloc int64) float64 {
-	var eaf float64 = 1
+func EstimateEffort(sloc int64, eaf float64) float64 {
 	var effortApplied = projectType[CocomoProjectType][0] * math.Pow(float64(sloc)/1000, projectType[CocomoProjectType][1]) * eaf
 	return effortApplied
 }

processor/cocomo_test.go

@@ -7,7 +7,7 @@ import (
 )
 
 func TestEstimateCost(t *testing.T) {
-	eff := EstimateEffort(26)
+	eff := EstimateEffort(26, 1)
 	got := EstimateCost(eff, 56000, 2.4)
 
 	// Should be around 582
@@ -17,7 +17,7 @@ func TestEstimateCost(t *testing.T) {
 }
 
 func TestEstimateCostManyLines(t *testing.T) {
-	eff := EstimateEffort(77873)
+	eff := EstimateEffort(77873, 1)
 	got := EstimateCost(eff, 56000, 2.4)
 
 	// Should be around 2602096
@@ -27,7 +27,7 @@ func TestEstimateCostManyLines(t *testing.T) {
 }
 
 func TestEstimateScheduleMonths(t *testing.T) {
-	eff := EstimateEffort(537)
+	eff := EstimateEffort(537, 1)
 	got := EstimateScheduleMonths(eff)
 
 	// Should be around 2.7

processor/formatters.go

@@ -816,7 +816,7 @@ func fileSummarizeLong(input chan *FileJob) string {
 	str.WriteString(getTabularWideBreak())
 
 	if !Cocomo {
-		estimatedEffort := EstimateEffort(int64(sumCode))
+		estimatedEffort := EstimateEffort(int64(sumCode), EAF)
 		estimatedCost := EstimateCost(estimatedEffort, AverageWage, Overhead)
 		estimatedScheduleMonths := EstimateScheduleMonths(estimatedEffort)
 		estimatedPeopleRequired := estimatedEffort / estimatedScheduleMonths
@@ -991,7 +991,7 @@ func trimNameShort(summary LanguageSummary, trimmedName string) string {
 
 func calculateCocomo(sumCode int64, str *strings.Builder) {
 	if !Cocomo {
-		estimatedEffort := EstimateEffort(int64(sumCode))
+		estimatedEffort := EstimateEffort(int64(sumCode), EAF)
 		estimatedCost := EstimateCost(estimatedEffort, AverageWage, Overhead)
 		estimatedScheduleMonths := EstimateScheduleMonths(estimatedEffort)
 		estimatedPeopleRequired := estimatedEffort / estimatedScheduleMonths

processor/processor.go

@@ -148,6 +148,9 @@ var AverageWage int64 = 56286
 // Overhead is the overhead multiplier for corporate overhead (facilities, equipment, accounting, etc.)
 var Overhead float64 = 2.4
 
+// the effort adjustment factor derived from the cost drivers, i.e. 1.0 if rated nominal
+var EAF float64 = 1.0
+
 // GcFileCount is the number of files to process before turning the GC back on
 var GcFileCount = 10000
 var gcPercent = -1