> For the complete documentation index, see [llms.txt](https://help.boomerang3.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.boomerang3.com/boomerang-2-system-administrator-manual/boomerang_system.md).

# Boomerang System

The ICU Scandinavia Boomerang is a flexible, distributed client-server monitoring system. Its simplified structure is shown below.

![](/files/HQ5WMpnjqLBIH8SqQucp)

Figure 1 Boomerang 2 system diagram

The Boomerang system collects the measurements from its sensors, saves the readings into its database, checks if the values read are within the user defined limits and generates alarms if they are outside the boundaries. Alarms are also generated in case of system malfunction like lack of readings or system infrastructure problems.

The system status can be presented in different ways including web page view and the alarms are distributed using user defined methods like email or SMS.

The active access to the system requires user rights which can have different levels defined by the system administrator. Two user access methods are provided, using Boomerang client application or via a web interface.

The system creates database backups automatically to protect the data collected. System reports and data exports can be generated on request or automatically.


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