The topic of Environmental Management Systems has to do with the implementation of the ISO-14000 series of international standards. This is a series of voluntary standards on environmental management tools and systems developed and maintained by ISO, the International Organization for Standardization. The ISO 14000 series includes standards on environmental auditing, life cycle analysis, environmental performance evaluation, and more. The purpose of these standards is to incorporate environmental aspects into the operations and product standards of industries and other organizations. Often, when people refer to ISO 14000, they are actually referring to one standard in the series: ISO 14001. Environmental Management Systems should not be confused with systems for managing environmental data.