CCTV Requirements Gathering

• The business requirements will form the basis of future projects and will determine the eventual scope.

• If a ‘need’ is not raised as a requirement, the project will not know that the system must perform an action- therefore it will not be included within the scope of the project or included within the end solution.

• The requirements will be base-lined at the end of the Initiate Phase. Any requirements submitted after this date will not be accepted without a change request and associated funding (where applicable).

• The identified business stakeholders are responsible for ensuring that all requirements are raised during the Initiate Requirements gathering process.

The Importance of Requirement Gathering

• Review each area of CCTV functionality.

• Prepare a set of draft CCTV BUSINESS requirements for each of the functional areas.

• Agree a priority for each draft requirement.

• Agree next steps, actions and areas for further investigation.

Workshop Objectives

Defining the Problem

• What types of threats are experienced?

• What is the level of threat experienced?

• Where are the threats experienced?

• What are the current security issues?

• What other tactics are used other than CCTV to tackle the threat?

• How often do threats occur?

• What is the impact of the threats?

• What is the impact of not tackling the threat?

• How is success measured by the security teams?

Defining the Nature of the Threat- Discussion

Recognise•Figure occupies at least 50% of the screen height.•Observers should be able to say with certainty whether or not an individual shown is the same as someone they have seen before.

Identify•Figure occupies at least 100% of the screen height.•Picture quality and detail should be sufficient to enable the identity of an individual to be established beyond reasonable doubt.

Observe•Figure occupies at least 25-30% of the screen height. •The characteristic details of the individual can be seen whilst the view remains wide enough to allow some activity surrounding the incident to be monitored.

• Which of the categories best reflects the type of activity being observed?

Observation Categories

Monitor & Control•Figure occupies at least 5% of the screen height.•The observer should be able to monitor the number, direction and speed of people movement across wide area.

Detect•Figure occupies at least 10% of the available screen height.•The observer should be able to search the display screens and ascertain with a high degree of certainty whether or not a person is present.

• Which of the categories best reflects the type of activity being observed?

Observation Categories

Operational Practice

• Who will be responsible for monitoring the CCTV?

• Who needs access to view the CCTV?

• When will the footage be monitored live?

• How long should footage be accessible?

• What happens when an event occurs? When is a response required and what should the response be?

Operational Practice- Discussion

Cameras

• What locations should be monitored?

• For each location- what is the threat being monitored?

• For each location- what is the purpose of the observation?

• For each location- how fast will the subject be moving (frame rates)

Locations for Monitoring- Discussion

• What types of camera should be used?- e.g. bullet, PTZ, dome, indoor, outdoor, vandal resistant etc

• Are infra-red cameras required? If so, what locations?

• What image resolution is required? Pixels & TVL?

• What Lens/ Aperture Types should be used?

• What Shutter Types and Speeds should be used?

• What types of sensors should be used?

• What field of view is acceptable?

Types of Camera- Discussion

• Should cameras be Digital or Analogue?

• Should IP cameras be used?

• What frame rates should be achieved?

Types of Camera- Discussion Cont…

• What standards should be in place for camera locations?

• Considering:• Field of View• Variations in light• Foliage• Blockages• Maintenance- i.e. cleaning• Power• Fixings• Concealment• Security• Height

Camera Placement- Discussion

• What is the minimum light level required? Day and night?

• What is the advised scene contrast levels?

Lighting- Discussion

• How should footage be transmitted? What video signal type?

• What level of link security is required?

• Should the system be wired or wireless?

Transmission- Discussion

Event Alerting

• Should the system provide automatic alerting functionality?

• If so, What activity should trigger an alert?

• If so, What form should the alert take?- audible/ visual alert, text message, emergency relay, record event, display event, register in audit log etc

Alerting- Discussion

Recording, Exporting & Archiving

• How long should the footage be retained before being overwritten?

• Should certain pieces of footage be protected from being overwritten?

• What image quality is required for recorded image?

• What frame rate is required for recorded image?

• What additional information should be recorded with the footage (meta data)?

Recording- Discussion

• Should it be possible to export the footage?

• Who should be able to export the footage?

• How should data be exported? What security should be available? What reporting?

• Who should be able to access to export?

• How should the exported footage be replayed?

• What size clips should be exportable?

Exporting & Archiving- Discussion

• What types of compression methods should be used?

• Is interframe compression acceptable?

• What level of data compression is acceptable? What is the minimum image quality?

• What compression CODEC should be used?

Compression- Discussion

• What storage capacity is required?

Storage- Discussion

Legal/ Regulatory Requirements

• What licensing regulations apply to the CCTV system?

• What legal requirements exist?- Data Protection Act, Freedom of Information Act etc

Legal/ Regulatory- Discussion

Security Control Room

• Where should the control room be located?

• What size and shape of room is acceptable?

• What lighting and ventilation requirements exist?

• What security should be in place in the control room?

• Proximity of the control room to the locations being monitored?

Security Control Room- Discussion

• How will the images be viewed?

• How many screens are required? What is the maximum number of screens to be monitored by one operator?

• How many cameras per display screen?

• What type of screen display should be used? (CRT, LCD, Plasma etc)

• What size screens should be used?

• What heat generation is acceptable?

Display- Discussion

• How should the screens be positioned?

• How many cameras should be shown at one time?

• Should multi screen, multi view be available?

• How many screens are required?

Erognomics- Discussion

• What maintenance is required?

• What support should be provided?

• What maintenance requirements exist?

• What support requirements exist?

Maintenance- Discussion

• Should footage/ data be shared with third parties?

• What reference databases should the system be linked to?

• Should the information exchange be multi directional?

Links to Reference Databases

Video Surveillance Management Systems

• Where should operatives be able to access footage?- in the CR? Remotely? On the Go?

• What should operatives be able to do remotely?

• What reporting should be available?

• What analytics should be captured?

• What information should be stored on individuals/ suspects?

• What trends should be monitored?

VMS- Discussion

Any Questions?