The anticipated performance of C/S in a specific application; it involves consideration of:

• The precise specification of the function of the C/S system (which part of the operator's data can be confirmed by the system)
• The selection of C/S equipment with sensitivity, tamper resistance, data (image) quality and authentication, and reliability adequate to perform the intended function
• The installation and servicing of the C/S devices in a manner which will maintain their performance at the intended level
• The frequency of review of the C/S data;
• Measures for the prevention of false alarms