Physical Security Information Management (PSIM) software integrates disparate security systems like video surveillance, access control, and building management into a single interface. It collects and aggregates data from these systems to help security operators better manage situations. PSIM uses workflow technology to provide guidance to operators and enforce security policies. True PSIM solutions are flexible and can adapt to an organization's changing security needs unlike some products falsely marketed as PSIM. PSIM helps improve security response times and situational awareness through a common operating picture.