This document discusses next generation firewalls (NGFWs) and unified threat management (UTM) solutions. It defines NGFWs as deep packet inspection firewalls that perform application-level inspection, intrusion prevention, and use intelligence from outside the firewall. UTMs are defined as security appliances that integrate firewall, antivirus, intrusion detection, and other features. The document notes that while some see NGFWs as having more features than UTMs, in reality both provide similar security capabilities. It emphasizes choosing a solution based on deployability, usability, visibility, performance, and efficacy over specific product classifications.