Question about Armature and PoseBone

Coding Python Support
1

I was doing some digging into Blender architecture for a exporter script and had a few questions.

What is the nature of data stored in the following matrices. In particular, is there any hierarchical relation between matrices :

  1. Pose.PoseBone.localMatrix

  2. Pose.PoseBone.poseMatrix

  3. Armature.Bone.matrix

I have gone through the API documentation available at the blender site that I downloaded but it was not clear enough for me.

Hoping to get some information.