The principal disadvantages(s) with the waterfall development methodology is (are) _____.
a. a long time elapses between completion of the system proposal and the delivery of the system
b. if the team misses important requirements, expensive post-implementation programming may be needed
c. the design must be completely specified on paper before programming begins
d. all of the above
e. none of the above

The Waterfall Development Methodology is a process for creating software that involves a series of steps that are followed in a specific order. It is called the "waterfall" method because each step flows into the next, like water flowing down a waterfall.

The first step in the Waterfall Development Methodology is to gather requirements, which means figuring out what the software should do. Next, a design is created, which outlines how the software will look and work. Then, the software is actually developed, which means writing the code and creating the software. After that, the software is tested to make sure it works correctly and any problems are fixed. Finally, the software is deployed, which means it is made available for people to use.

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