Final answer:
In engineering, breaking a product into smaller components makes it easier to estimate. Smaller components are easier to manage and their size and complexity are more manageable compared to the overall product.
Step-by-step explanation:
In the field of engineering, breaking a product into smaller components is often done to simplify the design and make it easier to manage. Smaller components are usually easier to estimate because their size and complexity are more manageable compared to the overall product. By breaking a product into smaller components, engineers can focus on each component individually and make more accurate estimates for their design and manufacturing.