High Security Systems, Technical Manual
2 Basic Demands
TAC AB, Nov 2006
9 (20)
04-00007-01-en
2
Basic Demands
The basic demands of the system are to fulfil the following require-
ments:
•
Data security – Data security ensures that raw data collected by
the system is not corrupted or distorted during transport from the
sensor to a secure database. The raw data includes both the actual
values and the time stamps of these values.
•
Data integrity – Data integrity ensures that raw data in the secure
database cannot be compromised, manipulated or altered acciden-
tally or intentionally by any user of the system. This also covers
the transport of values from the sensors to the secure database.
•
System reliability – System reliability ensures that a single point
of failure in the system is not fatal for the continuous recording of
raw data in the secure database.
2.1
System Topology and Configuration
The system requires a Windows domain controller to administer users
and user groups.
The server has to be run under a domain account with administrative
privileges on the local computer, and be executed as a Windows service.
TAC Vista Server
Logging in the Secure
Database
Windows NT Server
Domain controller
TAC Vista Server
Supervising the Log
server
