An Abstract Digital Forensic Model

This article introduces the concept of digital forensics and digital forensic model,compares the difference between the usage of digitalforensic in criminal investigating and in enterprise environment.Then,considering the usage of digital forensic in non-digital criminal fields,itprovides an abstract digital forensic model that is based on the former work of other experts.The new abstract model,which describes the process ofdigital forensic as a forensic cycle,focuses on the actor of forensic instead of the evidence itself.It is general enough to describe the character ofdigital forensic in both digital criminal and non-digital criminal fields,and abstract enough to fit not only law enforcement users,but also forenterprise users.