    Soniterice: 1: Laying out a ‘production’ line required: exact  ‘clculation of the number of workers required for a given step'ta  keep single garments, moving through the . operation  continiGusly'iuch as'a car inoves down an assembly ine.    Sentence 2: Creating a production line did not: involve any  ccalcillations of the amount of workers, and flow of products.