$-=$The demand for subassembly S is $130$ units in week $7.$ Each unit of S requires $2$ units of T and $2$ units of U$.$ Each unit of T requires $1$ unitnothing of$$ V$,2$ units of$$ W$,$ and $2$ units of X$.$ Finally, each unit of U requires $2$ units of Y and $3$ units of Z$.$ One firm manufactures all items. It takes $2$ weeks to make$$ S$,1$ weeknothing to make$$ T$,2$ weeks to make$$ U$,2$ weeks to make$$ V$,3$ weeks to make$$ W$,1$ weeknothing to make$$ X$,2$ weeks to make$$ Y$,$ and $1$ weeknothing to make Z$.$

LOADING... Click the icon to view the product structure and the$$ time$-$phased product structure.

LOADING... Click the icon to view the$$ on$-$hand inventory.

Part $2$

Suppose that in addition to $130$ units of$$ S$,$ there is also a demand for $30$ units of$$ U$,$ which is a component of S$.$ The $30$ units of U are needed for maintenance purposes. These units are needed in week $6.$ Additionally, a new order has been received for $80$ units of S due in week $8.$ Modify the net material requirements plan to reflect these changes.

Part $3$

Construct a new net material requirements plan $($enter your responses as whole numbers$).$

Item

Week

Lead Time

$1$

$2$

$3$

$4$

$5$

$6$

$7$

$8$

$($weeks$)$

S

Gross req

$$

enter your response here

$$

enter your response here

$2$

On hand

$$

enter your response here

$$

enter your response here

Net req

$$

enter your response here

$$

enter your response here

Order receipt

$$

enter your response here

$$

enter your response here

Order release

$$

enter your response here

$$

enter your response hereItem

$$On$-$Hand Inventory

Item

$$On$-$Hand Inventory

S

$20$

W

$25$

T

$20$

X

$30$

U

$40$

Y

$40$

V

$30$

Z

$540$