I've been asked to write a technical standard on Video Surveillance systems. From my domain which is IT based I focused on the architecture of the VMS, its ability to integrate into IT infrastructure systems and the enterprise management in a secure way. However from the Facility, construction and engineering side of the fence they want to focus on performance based standard to allow them to determine what they can put in and where and at the best price at the time. there are merits to both sides. I would like to here if not allready discussed the pros/cons of performance v technology based approach. As an reference point, from technology side, we would focus on 1 or 2 VMS products based on their ability to meet technical criteria. By doing so we get the cookie cutter model to allow for easy support, quick startup, checklist instructions. As opposed to performance which would define the minimum criteria that a product or device must meet, its installed quickly and someone is then left to support it.