Safe BC is a small company that produces security devices and safes. There are many designs for the

safes that the company produces. The demand for their safes has been increased recently and the

production facility has been enlarged to accommodate the change. The production manager of the

company, Betty Westwood has obtained the following table from the sales and marketing department on

the projected weekly demand for each model of their safes:

Model Weekly Demand

S$1120$

S$2102$

S$748$

S$890$

S$925$

Using the demand data, Betty wants to prepare a production plan for each day of a week. The production

department works five days a week. The engineering department has helped Betty to determine the best

sequence foreach cycle to be S$7-$S$8-$S$9-$S$1-$S$2.$ Note that partially completed safes are not permitted and

they must produce finished units in each cycle. Determine the level$-$mix model sequence for this each

day. Study level production in Chapter $14$ of the book before analyzing this case.

Source: This case is taken from the required textbook for the OPMT $620$ course. Complete textbook

informa$$on is available in the course outline.