This paper probes into the concept of personal digital library,introduces PC-type personal digital library,system-attaching type personal digital library and personal platform type personal digital library,and expounds the significance of constructing the personal digital library.

The equity of the compensation reflects as three respects of external equity,inside equity and individual equity mainly,this paper takes IT industry as an example,pass to researcher s review about equity view of the compensation a little at present,combine the design idea of the broadband compensation,has explained the thinking of some operation of the broadband compensation in realizing.