Can anyone give me a simple conceptual explanation of AAF file exports and what they are used for?

I am currently editing a series of films - each with its own seuence but within the same avid MC project and sharing common raw material - and the client may require aaf files - so I'm interested in knowing whether aaf data is exported for an entire project or for a single timeline sequence?

I undertstand that this is a way of transfering data between workstations/editors, but I know nothing about the concept and how it works in practice and I am unable to find any explanation that doesn't rely on understanding a lot of the terminology first.

Help anyone? Or suggestions to good sources of explanations?

thanks!

AAFs only transfer a single sequence of metadata (and optionally media)

It's used a lot to send a finished offline to a sound dub. And if round tripping to say resolve for a grade.

But between Avid Media Composer systems you send bins.

Or a whole project if needed.