ISO 9000 centre the concept of process management (the monitoring and optimisation of a company's tasks and activities, instead of just inspection of the final product). The 2000 version also demanded involvement by upper executives in order to integrate quality into the business system and avoid delegation of quality functions to junior administrators. Another goal was to improve effectiveness via process performance metrics: numerical measurement of the effectiveness of tasks and activities. Expectations of continual process improvement and tracking customer satisfaction were made explicit. ISO 9000 Requirements include: ISO 9001:2008 in essence re-narrates ISO 9001:2000. The 2008 version only introduced clarifications to
ISO 28000 operational benefits that are realized throughout supply chains and business practices. Benefits include, but are not limited to: ISO 28000:2007 is a certifiable standard. ISO 28000 ISO 28000:2007 (Specification for security management systems for the supply chain) is an International Organization for Standardization standard specifying requirements of a security management system particularly dealing with security assurance in the supply chain. Parts of the standard are considered "publicly available", while the entire specification can be purchased from the International Standards Organization. ISO 28000:2007 was developed to codify operations of security within the broader supply chain management system. The PDCA management systems