• other engineering disciplines concentrate on using knowledge of the real world (e.g., electrical circuits, materials, robotics),
• systems engineering focuses on methods to solve problems, not the solution of the problems.
Physical vБайду номын сангаас. Abstract Systems Open vs. Closed system
3.Feedback Control in System
Input
System Performance
Output
Character of open-loop system:
• Not aware of its own performance • Past action has no influence on future action • Possesses no means to provide for its own control or
3. Inventory Planning and Control
Inventory planning determines the material requirements: components, parts, raw materials, and so on
inventory control determines the proper inventory levels, reorder points, safety stocks, and the like.