実験計画（DOE）には、最適計画を探すためにどのくらいの時間を割り当てるかを制御するNumber of StartsやDesign Search Timeなどのオプションが用意されています。
// Number of Startsの例
DOE(
Custom Design,
Add Factor( Continuous, -1, 1, "X1", 0 ),
Add Factor( Continuous, -1, 1, "X2", 0 ),
Add Factor( Continuous, -1, 1, "X3", 0 ),
Number of Starts( 1000 ),
Make Design
);
// Design Search Timeの例
d = DOE( Screening Design );
dt2 = Open( "$SAMPLE_DATA/Design Experiment/Weld Factors.jmp" );
d << Load Factors;
Close( dt2 );
d << {Set Random Seed( 12345 ), Screening Type( 1 ),
Suppress Cotter Designs, Design Search Time( 8 ),
Number of Column Starts( 50 ), Set Sample Size( 12 ), Make Design};