The amount of "vital heat" produced by a specific body was viewed as a direct index of its place in the "great chain of being", a hierarchical order of rank according to degrees of perfection.
A fast Mobile IP handoff scheme, combined hierarchical foreign agent management with forwarding pointer chain, is proposed to improve traffic QOS while MH handoffs frequently.
The design USES hierarchical design method, with the use of chain and tree data structure to achieve the FAT file system. It has well maintainability and portability.