In the case of working with different people or tasks that are not performed continuously, it will make it easier to understand. Easy-to-find errors (bug), because there will be fewer repetitive code allows the program to work better, which is to give you a better picture of the code without changing the functionality of the original software.
When working with multiple or continuous work is not done. It will be easily understood Easy to find the error (bug) because there will be less repetitive code allows the program work better. This improved the quality of the code without changing the functionality of the software.
In the case of working with many people, or a job that didn't do it continuously, it will be easy to understand, easy to find errors (Bug) because the code. Repeatedly, there will be less, allowing the program to work better.