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This study developed a highly adaptive digital forensic model, applicable to various situations, which clearly describes the digital forensic process and their purposes as well as ensuring the exactness and effectiveness of digital forensic results. It examined the viewpoint of the digital evidence process flow throughout an entire forensic process, and it hoped to provide a complete explanation of the digital forensic procedure and the details of execution. In addition, it proposed three new forensic concepts: primary, supported and comprehensive forensic procedures. The structural hierarchy constructed in the model can be expanded, then divided into its simplest forms, allowing independent task assignments. It further proposed several innovative digital forensic concepts, such as a new feedback mechanism. Finally, this model could provide a detailed list of the resources necessary for an entire forensic activity, applicable to management planning. This model provided a practical description approach and established a comprehensive and uniform digital expression form. The aim is to accumulate and to share experience and knowledge, hoping to create more mature and practical digital forensic science and to provide a reference for the practitioners of digital forensics.