1. Extern name server - translates addresses of e-mails messages - enables users to use e-mail aliases - … ID cards system - controls entrance to buildings, usage of public computers - … Web server - enables users to make their own web presentations Microsoft ® Active Directory - delegates user privileges across domain - … Microsoft ® Exchange - provides e-mail service for domain users - … Exports (C#) - presents data to managed systems Web-based user interface (ASP.NET) - manual user management - creates accounts, adds/removes e-mail aliases, changes logins, sets passwords, changes user details, … - shows/manages event log Database of Students (Oracle 9i) Database of Employees (Informix) Microsoft ® SQL Server - main data storage Event Log (C#) - stores important information about system run and decisions - debug purposes Kernel (C#) - synchronizes data with extern sources - main system logic, decisions making - objective approach to relational data stored in database - … Checking (C#) - checks database consistency and compatibility with Exchange and Active Directory System Uzivatele

2. Web-based user interface

3. Uzivatele database scheme