1.Introduction to visio
Office Visio is the software responsible for drawing flowcharts and schematic diagrams in the office software series. It is a software that facilitates the visualization, analysis and communication of complex information, systems and processes by IT and business personnel. Using professional-looking Office Visio diagrams can promote understanding of systems and processes, in-depth understanding of complex information and use this knowledge to make better business decisions.
Microsoft Office Visio helps you create professional-looking diagrams to understand, record, and analyze information, data, systems, and processes. Most graphics software programs rely on structural skills. However, when you use Visio, communicating important information visually is as easy as opening a template, dragging and dropping shapes into the drawing, and applying themes to the work that is about to be done. 
2. Visio main functions
Create a visualization chart
Start drawing charts quickly through templates, modern UI and simple operation interface.
Create diagrams such as block diagrams, flowcharts, schedules, specifications and description language (SDL) diagrams.
Professional and convenient
Use ready-made templates and 250,000 shapes in the Visio content ecosystem that meet industry standards (such as BPMN 2.0, UML 2.5, and IEEE) to create professional diagrams.
Simple and easy to use, customize the chart and complete the chart more quickly, use a brush, finger or ink to draw or annotate.
cooperation
Share your diagrams via secure web-based links, attachments, images or PDFs, and reply to comments online.
Use the included 2GB free OneDrive storage space to safely store and share your work, which is web-based and always up to date.
Collaborate with others using co-authoring, comments, annotations, and Skype for Business integration.
Simplify teamwork in advanced design by enhancing support for AutoCAD drawings.
Make the chart more vivid
Use data overlap, colors and graphics to make the charts more vivid, and incorporate one-step Excel data visualization functions to make the data easy to understand.
Integrate data link charts into Power BI dashboards to gain more business insights.
Simplify IT management
Provide a unified version, anytime, anywhere through the browser or iPad application to access the chart.
The desktop application is always up to date.
3. Visio drawing steps and shortcut keys
① I don't know what to draw, first find a few favorite visio templates to copy/have something you want to draw, and draw according to your own thoughts.
② Draw sketches on paper and don't let tools limit your thinking. The visio graph can be expanded indefinitely. Don't be limited to the size of the paper, you can draw nodes on the paper.
③ Draw according to the sketch, and see which of the visio tools can and cannot be realized. After completion, you can beautify it again, using color blocks to set off the key parts, or other conspicuous colors; refer to the color scheme of excellent works, simply use pure colors; basic design structure: balance, contrast, highlight the main body, and weaken the secondary .
④ learn the most commonly used shortcuts + preset tool 
commonly used shortcut keys
- Select tool ctrl+1
- Text tool ctrl+2
- Connection line ctrl+3
- Shape tool ctrl+8
- Text (bold/italic/strikethrough) ctrl+b/i/u
- The font becomes larger/smaller ctrl+shift+, /.
- Combine/ungroup ctrl+g / ctrl+shift+u
- Place the selected element on the top/bottom ctrl+shift+F/B
- Open the fill/line dialog
- F12 save
- Format brush ctrl+shift+p
Operation shortcut
- Copy press ctrl+drag
- Horizontal/vertical copy press ctrl+shift+drag (horizontal/vertical)
- Zoom in ctrl+wheel
- Scroll the canvas horizontally shift+wheel
NetTerrain comparable to Visio
Using Excel, PPT, and Visio to manage our network, we all end up at a crossroads. In computer room management, drawing pictures is not enough. In industry applications and actual operations, managers need more professional software to improve operation and maintenance efficiency.
Because the network is always changing and developing, the lack of network documents due to changes in management personnel, and our network management personnel also need holidays...
Traditional network monitoring and management tools do a good job in monitoring alarms and network performance analysis, but they do poorly in network document management. For example: Is this server under warranty? Is it under maintenance? Who can I contact? Where is the network device located? Which computer room and cabinet are the equipment located in? ...
netTerrain is neither a monitoring tool nor a bandwidth or traffic management tool. However, if you are looking for an application to view the infrastructure of my network today, netTerrain is exactly what you need. Using netTerrain can update the network topology diagram in real time and provide a way to view the network diagram from the physical layer. Compared with visio, it is flexible and easy to manage, and you can view the deployment of each layer layer by layer. It has the following characteristics: 
Hierarchical view
Graphicalization is the core of the entire DCIM tool, does not rely on Visio or third applications
Efficient usability
We believe that DCIM tools should maximize work efficiency, not make things more complicated
Simple and easy-to-use modeling method
Other vendors need weeks or months to deliver them, we will train you in a few minutes on how to do this, or send the equipment model to you within 24 hours
Flexibility
Quickly add or delete object attribute fields, change visual prompts, create business rules, and apply them to thousands of objects in seconds
The advanced platform
netTerrain uses HTML5-based technology to realize web-based client access without plug-ins
Third-party system integration
We create integration adapters for any commercial tools you already own to increase automation for free
Multi-protocol support Supports
multiple device monitoring protocols such as SNMP\IPMI\ WMI\SSH\OLE
Security
8 different access roles configurable based on each chart. 
Now, without downloading software, you can manage the entire campus/data center after logging in! The computer room/park management and IT operation and maintenance are handed over to professional software to manage. The use is similar to visio, and the drag-and-drop method can be seen at a glance from the cabinet to the computer room, and then to the park. IT personnel are easy to use, and it will be more effective.