Programmers use the specification to write the code necessary to fulfil all the requirements of the program. The code is a text based file which when compiled creates the program.

A good programmer will
consider:

• Future Maintenance: any code that may be modified in future and should be allowed for when writing the code.
• Code Readability: this enables programmers to identify areas of code quickly and easily.
  
• Documentation: a document showing how the program works.