What is the similarities of direct development and metamorphosis?

Direct Metamorphosis OR incomplete Metamorphosis OR simple Metamorphosis:-

It is a process in which an organism changes from NYMPH to an ADULT in three stages, where there is some resembles with the previous stage.

Indirect Metamorphosis OR Complete Metamorphosis OR Complex Metamorphosis:-

It is a process in which an organism changes from a LARVA to an ADULT in four stages, through drastic changes.