{UTF-8}
"Adding person-months"=
	Workforce
	~	months*person/Month
	~		|

Fraction of WF in testing= WITH LOOKUP (
	Fraction perceived complete,
		([(0,0)-(1,1)],(0,0.1),(0.2,0.2),(0.4,0.263158),(0.6,0.385965),(0.8,0.535088),(1,0.741228\
		) ))
	~	
	~		|

Effect of flaws on testing productivity= WITH LOOKUP (
	Fraction flawed,
		([(0,0)-(1,1)],(0,0),(0.2,0.54386),(0.4,0.789474),(0.6,0.960526),(0.8,1),(1,1) ))
	~	
	~		|

Fraction flawed=
	Undiscovered rework/Cumulative perceived progress
	~	dmnl
	~		|

Workforce on tasks=
	(1-Fraction of WF in testing)*Workforce
	~	people
	~		|

Max testing productivity=
	1
	~	tasks/(person*Month)
	~		|

Testing productivity=
	Max testing productivity*Effect of flaws on testing productivity
	~	tasks/(person*Month)
	~		|

Detecting undiscovered rework=
	Testing productivity*Workforce in testing
	~	tasks/Month
	~		|

Progress rate=
	Gross productivity*Workforce on tasks
	~	tasks/Month
	~		|

Workforce in testing=
	Fraction of WF in testing*Workforce
	~	people
	~		|

Gross productivity= WITH LOOKUP (
	Tasks remaining,
		([(0,0)-(1200,1)],(0,0),(50,0.85),(100,1),(200,1),(1200,1) ))
	~	tasks/person/Month
	~		|

Time remaining=
	MAX(1,Scheduled completion date - Time)
	~	months
	~		|

Effort perceived remaining=
	Tasks remaining/Perceived productivity
	~	person*months
	~		|

Indicated completion date=
	Time + Time perceived required
	~	months
	~		|

Tasks remaining= INTEG (
	Detecting undiscovered rework-Generating undiscovered rework-Making real progress,
		Initial project definition)
	~	tasks
	~		|

Undiscovered rework= INTEG (
	Generating undiscovered rework - Detecting undiscovered rework,
		0.0005)
	~	tasks
	~		|

Cumulative effort= INTEG (
	"Adding person-months",
		0.001)
	~	person*months
	~		|

Cumulative real progress= INTEG (
	Making real progress,
		0.0005)
	~	tasks
	~		|

Generating undiscovered rework=
	Progress rate*(1 - Fraction satisfactory)
	~	tasks/Month
	~		|

Making real progress=
	Progress rate* Fraction satisfactory
	~	tasks/Month
	~		|

Time to adjust workforce=
	3
	~	months
	~		|

Time to adjust schedule=
	3
	~	months
	~		|

Net hiring=
	 (Workforce sought - Workforce)/Time to adjust workforce
	~	people/Month
	~		|

Adjusting the schedule=
	 (Indicated completion date - Scheduled completion date)/Time to adjust schedule
	~	months/Month
	~		|

Cumulative perceived progress=
	Cumulative real progress + MAX(0,Undiscovered rework)
	~	tasks
	~		|

FINAL TIME=
	IF THEN ELSE(Fraction perceived complete<0.99,100,Time)
	~	Month
	~	The final time for the simulation.
	|

Fraction perceived complete = Cumulative perceived progress/Initial project definition
	~	fraction
	~		|

Fraction satisfactory=
	0.5
	~	fraction
	~		|

Indicated worforce =Effort perceived remaining/Time remaining
	~	people
	~		|

Initial project definition = 1200
	~	tasks
	~		|

INITIAL TIME  = 0
	~	Month
	~	The initial time for the simulation.
	|

Perceived productivity = Cumulative perceived progress/Cumulative effort
	~	tasks/person/Month
	~		|

SAVEPER  = 
        TIME STEP
	~	Month
	~	The frequency with which output is stored.
	|

Scheduled completion date = INTEG(Adjusting the schedule,40)
	~	months
	~		|

Time perceived required = Effort perceived remaining/Workforce sought
	~	months
	~		|

TIME STEP  = 0.25
	~	Month
	~	The time step for the simulation.
	|

Willingness to change workforce= WITH LOOKUP (
	Fraction perceived complete,
		([(0,0)-(1,1)],(0,1),(0.1,1),(0.2,1),(0.3,1),(0.4,0.95)
		,(0.5,0.85),(0.6,0.72),(0.7,0.45),(0.8,0.1),(0.9,0),(1,0)))
	~	dimensionless
	~		|

Workforce = INTEG(Net hiring,2)
	~	people
	~		|

Workforce sought=
	MAX(0,Indicated worforce*Willingness to change workforce + Workforce*(1-Willingness to change workforce
	))
	~	people
	~		|

\\\---/// Sketch information - do not modify anything except names
V300  Do not put anything below this section - it will be ignored
*View 1
$192-192-192,0,Comic Sans MS|12||0-0-0|0-0-0|0-0-255|-1--1--1|-1--1--1|72,72,5,0
10,1,Workforce,335,159,55,29,3,131,0,4,0,0,0,0,-1--1--1,255-192-128,|0||0-0-0
10,2,Progress rate,736,150,36,22,8,131,0,0,-1,0,0,0
10,3,Cumulative real progress,796,463,55,29,3,131,0,4,0,0,0,0,-1--1--1,255-192-128,|0||0-0-0
10,4,Effort perceived remaining,367,437,66,23,8,131,0,0,0,0,0,0
10,5,Indicated worforce,197,390,38,23,72,131,0,0,-1,0,0,0
10,6,Gross productivity,703,226,48,23,8,3,0,0,-1,0,0,0
10,7,Initial project definition,704,406,39,29,8,131,0,0,0,0,0,0
10,8,Time remaining,254,510,42,19,8,131,0,0,-1,0,0,0
10,9,Time perceived required,141,544,59,23,8,3,0,0,-1,0,0,0
10,10,Indicated completion date,303,663,60,23,8,3,0,0,-1,0,0,0
10,11,Scheduled completion date,362,587,55,29,3,131,0,4,0,0,0,0,-1--1--1,255-192-128,|0||0-0-0
10,12,Undiscovered rework,1113,291,55,29,3,131,0,4,0,0,0,0,-1--1--1,255-192-128,|0||0-0-0
10,13,Cumulative perceived progress,790,575,73,23,8,3,0,0,0,0,0,0
10,14,Fraction satisfactory,963,435,48,23,8,131,0,0,-1,0,0,0
10,15,Cumulative effort,584,228,55,29,3,131,0,4,0,0,0,0,-1--1--1,255-192-128,|0||0-0-0
10,16,Perceived productivity,551,347,48,23,8,3,0,0,0,0,0,0
10,17,Time,210,582,21,9,0,2,0,3,-1,0,0,0,0-0-0,0-0-0,|9||0-0-0
10,18,Workforce sought,153,287,44,23,8,131,0,0,-1,0,0,0
10,19,Willingness to change workforce,346,335,51,29,8,131,0,1,0,0,0,0,64-0-0,0-0-0,|9||0-0-0
10,20,Fraction perceived complete,571,514,73,23,8,3,0,0,-1,0,0,0
10,21,Time to adjust workforce,150,101,56,23,8,3,0,0,0,0,0,0
10,22,Time to adjust schedule,636,634,56,23,8,3,0,0,0,0,0,0
1,23,2,72,2,0,0,0,0,0,0,-1--1--1,,1|(866,287)|
1,24,4,5,2,0,0,0,0,0,0,-1--1--1,,1|(278,422)|
1,25,8,5,1,0,0,0,0,0,0,-1--1--1,,1|(222,446)|
1,26,1,59,2,0,0,0,0,0,0,-1--1--1,,1|(260,125)|
1,27,4,9,1,0,0,0,0,0,0,-1--1--1,,1|(203,475)|
1,28,9,10,1,0,0,0,0,0,0,-1--1--1,,1|(162,603)|
1,29,10,55,1,0,0,0,0,0,0,-1--1--1,,1|(388,658)|
1,30,11,8,2,0,0,0,0,0,0,-1--1--1,,1|(275,545)|
1,31,11,55,2,0,0,0,0,0,0,-1--1--1,,1|(421,635)|
1,32,6,2,1,0,0,0,0,0,0,-1--1--1,,1|(724,187)|
1,33,2,69,2,0,0,0,0,0,0,-1--1--1,,1|(914,240)|
1,34,3,13,1,0,0,0,0,0,0,-1--1--1,,1|(801,519)|
1,35,12,13,1,0,0,0,0,0,0,-1--1--1,,1|(1016,495)|
1,36,14,72,0,0,0,0,0,0,0,-1--1--1,,1|(908,407)|
1,37,14,70,0,0,0,0,0,0,0,-1--1--1,,1|(960,392)|
1,38,1,76,2,0,0,0,0,0,0,-1--1--1,,1|(405,159)|
1,39,13,16,1,0,0,0,0,0,0,-1--1--1,,1|(681,461)|
1,40,15,16,1,0,0,0,0,0,0,-1--1--1,,1|(584,292)|
1,41,16,4,2,0,0,0,0,0,0,-1--1--1,,1|(478,406)|
1,42,5,18,2,0,0,0,0,0,0,-1--1--1,,1|(166,342)|
1,43,18,60,2,0,0,0,0,0,0,-1--1--1,,1|(159,225)|
1,44,19,18,2,0,0,0,0,0,0,-1--1--1,,1|(264,326)|
1,45,20,19,1,0,0,0,0,0,0,-1--1--1,,1|(490,417)|
1,46,13,20,1,0,0,0,0,0,0,-1--1--1,,1|(669,557)|
1,47,7,20,1,0,0,0,0,0,0,-1--1--1,,1|(657,454)|
1,48,1,18,2,0,0,0,0,0,0,-1--1--1,,1|(295,243)|
1,49,21,59,1,0,0,0,0,0,0,-1--1--1,,1|(155,132)|
1,50,22,55,0,0,0,0,0,0,0,-1--1--1,,1|(568,622)|
12,51,48,547,581,10,8,0,3,0,0,-1,0,0,0
1,52,54,11,4,0,0,22,0,0,0,-1--1--1,,1|(452,583)|
1,53,54,51,100,0,0,22,0,0,0,-1--1--1,,1|(518,583)|
11,54,48,494,583,6,8,34,3,0,0,1,0,0,0
10,55,Adjusting the schedule,494,611,48,20,40,131,0,0,0,0,0,0
12,56,48,122,164,10,8,0,3,0,0,-1,0,0,0
1,57,59,1,4,0,0,22,0,0,0,-1--1--1,,1|(240,169)|
1,58,59,56,100,0,0,22,0,0,0,-1--1--1,,1|(160,169)|
11,59,48,195,169,6,8,34,3,0,0,1,0,0,0
10,60,Net hiring,195,190,31,9,32,3,0,0,2,0,0,0
1,61,71,3,4,0,0,22,0,0,0,-1--1--1,,1|(797,408)|
1,62,71,78,100,0,0,22,0,0,0,-1--1--1,,1|(797,351)|
1,63,69,12,4,0,0,22,0,0,0,-1--1--1,,1|(1009,296)|
1,64,69,78,100,0,0,22,0,0,0,-1--1--1,,1|(898,296)|
1,65,67,78,4,0,0,22,0,0,0,-1--1--1,,1|(793,181)|
1,66,67,12,100,0,0,22,0,0,0,-1--1--1,,1|(1113,181)|
11,67,732,951,181,6,8,34,3,0,0,1,0,0,0
10,68,Detecting undiscovered rework,951,215,57,26,40,131,0,0,0,0,0,0
11,69,412,955,296,6,8,34,3,0,0,1,0,0,0
10,70,Generating undiscovered rework,955,332,54,28,40,131,0,0,-1,0,0,0
11,71,604,797,377,8,6,33,3,0,0,4,0,0,0
10,72,Making real progress,846,377,41,25,40,131,0,0,-1,0,0,0
12,73,48,420,233,10,8,0,3,0,0,-1,0,0,0
1,74,76,15,4,0,0,22,0,0,0,-1--1--1,,1|(500,233)|
1,75,76,73,100,0,0,22,0,0,0,-1--1--1,,1|(445,233)|
11,76,48,466,233,6,8,34,3,0,0,1,0,0,0
10,77,"Adding person-months",466,269,30,28,40,131,0,0,-1,0,0,0
10,78,Tasks remaining,793,302,55,29,3,131,0,4,0,0,0,0,-1--1--1,255-192-128,|0||0-0-0
1,79,7,78,0,0,0,0,0,64,1,-1--1--1,,1|(743,359)|
1,80,78,4,1,0,0,0,0,64,0,-1--1--1,,1|(610,400)|
1,81,18,9,1,0,0,0,0,64,0,-1--1--1,,1|(129,369)|
1,82,17,8,0,0,0,0,0,64,0,-1--1--1,,1|(224,556)|
1,83,17,10,0,0,0,0,0,64,0,-1--1--1,,1|(242,610)|
1,84,78,6,1,0,0,0,0,64,0,-1--1--1,,1|(713,285)|
10,85,Workforce on tasks,608,139,55,23,8,3,0,0,0,0,0,0
10,86,Workforce in testing,830,113,53,23,8,3,0,0,0,0,0,0
1,87,1,86,1,0,0,0,0,64,0,-1--1--1,,1|(590,89)|
1,88,86,67,1,0,0,0,0,64,0,-1--1--1,,1|(900,133)|
10,89,Testing productivity,1077,113,48,23,8,3,0,0,0,0,0,0
1,90,89,67,1,0,0,0,0,64,0,-1--1--1,,1|(990,125)|
1,91,85,2,1,0,0,0,0,64,0,-1--1--1,,1|(668,142)|
10,92,Fraction of WF in testing,516,48,70,23,8,3,0,0,0,0,0,0
1,93,92,85,1,0,0,0,0,64,0,-1--1--1,,1|(561,86)|
1,94,92,86,1,0,0,0,0,64,0,-1--1--1,,1|(708,77)|
10,95,Max testing productivity,1002,62,48,23,8,3,0,0,0,0,0,0
1,96,95,89,1,0,0,0,0,64,0,-1--1--1,,1|(1064,76)|
10,97,Effect of flaws on testing productivity,1235,214,77,23,8,3,0,0,0,0,0,0
1,98,97,89,1,0,0,0,0,64,0,-1--1--1,,1|(1186,136)|
10,99,FINAL TIME,843,664,61,11,8,2,0,3,-1,0,0,0,128-128-128,0-0-0,|12||128-128-128
1,100,1,85,0,0,0,0,0,64,0,-1--1--1,,1|(464,149)|
1,101,20,92,1,0,0,0,0,64,0,-1--1--1,,1|(497,235)|
10,102,Fraction flawed,1185,471,61,11,8,3,0,0,0,0,0,0
1,103,12,102,1,0,0,0,0,64,0,-1--1--1,,1|(1122,369)|
1,104,13,102,1,0,0,0,0,64,0,-1--1--1,,1|(1034,571)|
1,105,102,97,1,0,0,0,0,64,0,-1--1--1,,1|(1257,372)|
///---\\\
:GRAPH Summary
:TITLE Summary
:SCALE
:VAR Workforce
:LINE-WIDTH 2
:SCALE
:VAR Cumulative preceived progress
:LINE-WIDTH 2
:SCALE
:VAR Fraction perceived complete
:LINE-WIDTH 2
:VAR Fraction flawed
:LINE-WIDTH 2
:SCALE
:VAR Scheduled completion date
:LINE-WIDTH 2
:SCALE
:VAR Perceived productivity

:GRAPH Tasks
:TITLE Tasks
:SCALE
:VAR Cumulative preceived progress
:LINE-WIDTH 2
:VAR Cumulative real progress
:LINE-WIDTH 2
:VAR Undiscovered rework
:LINE-WIDTH 2
:VAR Tasks remaining
:LINE-WIDTH 2
:SCALE
:VAR Fraction flawed

:GRAPH Workforce
:TITLE Workforce
:SCALE
:VAR Workforce
:LINE-WIDTH 2
:VAR Workforce on tasks
:LINE-WIDTH 2
:VAR Workforce in testing
:LINE-WIDTH 2
:VAR Workforce sought
:LINE-WIDTH 2

:GRAPH Schedule
:TITLE Schedule
:SCALE
:VAR Effort perceived remaining
:LINE-WIDTH 2
:SCALE
:VAR Time perceived required
:LINE-WIDTH 2
:VAR Time remaining
:LINE-WIDTH 2
:VAR Scheduled completion date
:LINE-WIDTH 2
:L<%^E!@
1:proj1 v4.vdf
9:proj1 v4
23:0
15:0,0,0,0,0,0
19:5,0
27:0,
34:0,
4:Time
5:Undiscovered rework
24:0
25:72
26:72