The document “NCP-104B.1-NCP-104.3-System-Design-Specification-Template-Worked-Example-Jul-18-rev-Jun-2020” provides a comprehensive worked example of a System Design Specification (SDS) for a CCTV security system at a retail location. It includes detailed sections on risk assessment, site survey, user requirements, and system design, outlining the necessary equipment, operational parameters, and compliance with data protection regulations. The document serves as a template for developing specifications tailored to similar security system installations.