System requirements

Server

	Requirement	tested
OS	Java-enabled OS	CentOS 5.6 - 7.4 Ubuntu 18.04 - 22.04 Debian 9 - 12
Java	JDK 11 - 17	11.0.21, 17.0.9
Application Server	JSP-Container	Jetty 9.4.54
Webserver	Any	Apache 2.2 - 2.4
Database	RDB with JDBC-Interface	PostgreSQL 9.4 - 16.1 recommended minimal 12 (MS SQL and Oracle on request)
Open ports	443 (HTTPS)

User computer

	Requirement	tested
OS		Windows 11, 10, 8.1, 7 macOS 10.6 - 14.3
Browser		Chrome 122 Firefox 123 Microsoft Edge Safari 17.3

Mobiles device

	Requirement	tested
OS		iOS, Android
Browser		Chrome Safari Firefox

Our reference system for the server (hosting)

CPU: Intel® Core™ E5-1650 v3 @ 3.50GHz
RAM: 128 GB DDR3 RAM
HD: 2 x 2 TB SATA-III HDD (software RAID 1)
Network: 100 MBit with open port 443 (HTTPS)
Debian 11, PostgreSQL 16.1, Apache 2.4.56, JDK 1.11.0.21, Jetty 9.4.54

Our internal reference system for a user computer

CPU: Intel® Core™ i3 2.0 Ghz
RAM: 4 GB DDR3 RAM
Input: keyboard and mouse with wheel
Network: 25 MBit
Screen resolution: 1680x1050
Chrome 122

Our reference system for mobile use

Mediatek MT6771 Helio P60, 1,8 GHz Octa-Core-CPU
RAM 3 GB
Network: HSPA+
Screen resolution: 1520x720
OS: Android 12