Software Development Methodologies

Hello,

I am a computer science student. I have been asked to write a short research document about software development methodolgies for a class entitled software development fundamentals. My previous education included a degree in music tech, so I have decided to try to write something on music tech software development, in the open source domain. I am looking for any information or feedback related to the development methodologies which are used in the coding and development of open source audio editing software. This project is very much in its infancy so I cant really tell you anything other than this right now, but any information at all will be appreciatively recieved.

Any help will be apprecited.

I didn’t find the right solution from the Internet.

References:
http://forum.audacityteam.org/viewtopic.php?f=21&t=63556
Medical Animated Explainer

Thank you.