There are various drawbacks of the top-down approach. Here in the design strategy importance
is given to functions rather than data. For example, in turbo C, we cannot give data after clrscr ().
If data is declared after clrscr (), error will be shown by the compiler.
2) Bottom-up design method: Here the design of a problem starts from the bottom and it goes up
to the top. Some designers prefer this approach. They attempt to find the last blocks of design and
implement them first. By building various blocks from the bottom they ascend towards the top,
assemble all parts designed as planned, an
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.