The tutorial teaches you about making the FTTX schematic in your QGIS project. You can prepare the Straight Line Diagram (SLD) straight away from your telecom design once produced in QGIS. This is the perfect alternative for other applications (like Microsoft Visio) used for this purpose and prevents you from potential human error possible to occur at the stage of data input. This particular step has been removed completely because the stuff is fetched directly from the data attribute table.
Moreover, this way of preparing the fibre FTTX schematic is really flexible with respect to the styling and displacement of particular items across your output page.
Learn more here:

https://www.astrogeogis.com/making...