Family is very important in life and is very important in a bill of materials. The family as we’ve suggested in a bill of materials is best defined as a parent-child relationship. There are two primary members of this relationship. The parent and the child. In a bill of materials the parent is best defined as an upper-level item or assembly that contains child items that are used to build the item or assembly. Child items in our parent child relationship are the lower-level components that you will need to build the parent item. With this in mind a parent item is above its children and parent items can have as many children as needed to make the parent. A child is one of the components or raw materials that are used to make the parent item or the item above. In the case of a bill of material children have only one parent. On the flipside a child can be a parent to its own children too. And, they can have as many as they need to. This results in what is known as a multilevel bill of material.
Example A bicycle is our parent item. This is the independent demand item that a customer buys and is scheduled in the Master Production Schedule. A bike however, has components to it. We need a frame, two wheels, a chain, pedals, a seat and a few other things for the bicycle to be complete. These components are the children or dependent demand that is scheduled in material requirements planning.
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June 2024
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