Final answer:
Top-down design
Step-by-step explanation:
Viewing an operation at a high level of abstraction and fleshing out the details of its implementation at a later time is known as top-down design.
Top-down design is a design approach where the overall structure and functionality of a system or operation is first conceived at a high level, and then the details and implementation are filled in later. It allows for a more efficient and systematic design process, as it allows designers to focus on the big picture before diving into the specifics.
For example, in software development, top-down design involves starting with the main function or objective of a program and breaking it down into smaller components or subroutines. The implementation of these components can then be filled in at a later stage.