(Chapter 1 Project Overview?? 51.1 Project Objectives?? 51.1.1 Overall Objectives?? 51.1.2 Stage Objectives?? 51.2 Design Principles?? Framework?? 82.1.2 Business System Usage Classification?? 92.1.3 Information Management System Usage Classification?? 102.2 Data Core and Branch Positioning?? 112.2.1 Phase One?? 112.2.2 Phase Two?? 112.2.3 Phase Three? ?12Chapter 3 Device Configuration??133.1 Basic Principles??133.1.1 Naming Convention??133.1.2 Port Allocation??14 Too many directories to list them all, a good solution~~)