Why do you think designing a program before you create it is beneficial?

Answer 1

The importance is that when you design it before you implement it, you have a better chance of eliminating design flaws from the beginning. If you start out coding and later on figure out you have a design flaw, it is extremely painful to go back and reimplement everything. Certain software engineering experts have estimated that it can cost up to 10x more (time and money) to fix a design problem in the later stages of software development than in the early stages.

Answer 2

You plan the logic of a program before writing it because, if you don't, you won't know what to write. Implementation always follows design. Even if you are designing and writing a short program in one pass, you are thinking about the design before you write each line of code. If you follow the reverse sequence, the probability of failure, and of needing to go back and rewrite, is very high, and potentially costly.

I would not hire a programmer, and I would consider firing a programmer, that wrote code without designing its requirements first.

Answer 3

Creating a good process overview prior to coding prevents duplication/reprogramming during the coding process and hence saves time and money. Other than that it can also help a project manager narrow his/her focus on exactly what the application should accomplish, removing any unneeded or superfluous functions. This usually results in a cleaner, more stable and easier to maintain program.

Answer 4

An algorithm is a language independent statement of the steps needed to solve a problem. Programmers write algorithms first, because that demonstrates understanding of the problem. Writing code first, except for very trivial cases, is a mistake.

Answer 5

Just like creating a bridge or a building or a car or an airplane, you must have a design before you start building or you will have a disaster. Admittedly the disaster with the program may simply be wasting lots of time debugging and rewriting it rather than people dieing... but depending on the application of the program, the disaster may in fact involve people dieing!

Answer 6

It is very much advisable to plan the logic of a program because it tells the program how to deliver information to a computer system.

Answer 7

Build a flow chart showing the logical sequences of each stage of the process. Identify sub routines and their returns to ensure that these are written in