Question

Apply waterfall model for development of a telephone directory
system. Indicate in detail each of
the steps.​

Answer 1

sorry I am unhelpful sorry

Answer 2

Waterfall Model for Development

Explanation:

• The waterfall model is a traditional system development life cycle model that uses a linear and sequential method to construct a system.

• The model is called a waterfall because it progresses methodically from one phase to the next in a downward direction.

• The output of one phase is utilized as the input of the following phase in this model, which is separated into many phases.
• Every phase must be finished before the next one begins, and the phases must not overlap.

• The waterfall model is a sequential design process in which progress is perceived fall) through flowing smoothly downhill  phases of conception, implementation, analysis, design, construction, testing, and maintenance.