In this master thesis, we are focusing on the efficiency and usability of geographical information systems, its advantages and disadvantages, and its usability in the area of optical communication networks. The main purpose of a geographic information system is containing all elements of processing, analysis and displaying techniques developed in several years. It puts all this tools in one place and simultaneously it builds a bridge between different spatial sciences. It allows a simple overview and using of different layers on a specific geographical area and with it, we avoid the difficult inspection of physical geographical maps, plans, charts and documentations. We detected a lack of such systems with documentation of optical communication networks. In this master thesis, we developed an application prototype that combines technical documentation, picture material and other corresponding data on a geographical map on the web. It enables a simple overview of situation plans, insight into plans and diagrams and it offers a set of tools for gathering information from optical networks.