Software Engineering

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10.3 
Conceiving the functional architecture
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Inventory stock.
 The amount of a resource that is available to the support data 
processing needs of the software product.
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Amount consumed.
 Functions may consume a resource drawing down the inventory 
stock, thereby reducing the amount of the resource available to other functions. 
Functions may replenish a resource representing the restocking of the inventory.
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Amount capture.
 A function may acquire a reuseable resource to support its 
execution and release the resource when the function has finished executing.
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Resupply amount.
 The amount of a consumable resource that is replenished by 
a function.