top-down reasoning

noun
UK /ˌtɒp ˈdaʊn ˈriːzənɪŋ/
US /ˌtɑːp ˈdaʊn ˈriːzənɪŋ/

A way of thinking that starts with the big idea and then breaks it into smaller parts.

Using top-down reasoning, she first picked the main topic and then filled in the details.


OTHER MEANINGS

2. In computing, a method of designing software by starting with the overall system and dividing it into smaller pieces.

The team used top-down reasoning to plan the app's structure before writing any code.

3. In reading, understanding a text by using prior knowledge and expectations rather than only the words on the page.

Good readers use top-down reasoning to guess meaning from context.

4. A management style where decisions come from leaders and flow down to workers.

The company's top-down reasoning meant the boss made all the choices.