What is the difference between source, source_section, source_administration, etc. ?

Every movement in ERP5 has a source and destination. The sources and destinations are actually defined as vectors rather than simple values. The dimensions of the vector relate to:

• physical location (source and destination): this describes from which physical location to which physical location goods or services are being moved.
• juridical ownership (source_section and destination_section): this describes who owns the goods which are shipped.