one that has clearly documented proof of behavior patterns, proving that an organization follows such documented constraints to the best of their ability. While defensibility applies to all aspects of records life cycle, it is considered most important in the context of records destruction, where it is known as "defensible disposition" or "defensible destruction," and helps an organization explicitly justify and prove things like who destroys records, why they destroy them, how they destroy them, when they destroy them, and where they destroy them. Classification Records managers use classification or categorization of record types to logically organize records created and maintained by an institution. Such classifications assist in functions such as creation, organization, storage, retrieval, movement, and destruction of records. At the highest level of classification are physical versus electronic records. (This is disputable; records are defined as such regardless of media. ISO 15489 and other best practices promulgate a functions based, rather than media based classification, because the law defines records as certain kinds of information regardless of media.) Physical records are those records, such as paper, that can be touched and which take up physical space. Electronic records, also often referred to as digital records, are those records that are generated with and used by information technology devices. Classification of records is achieved through the design, maintenance, and application of taxonomies, which allow records managers to perform functions such as the categorization, tagging, segmenting, or grouping of records according to various traits. Enterprise records Enterprise records represent those records that are common to most enterprises, regardless of their function, purpose, or sector. Such records often revolve around the day-to-day operations of an enterprise and cover areas such as but not limited litigation, employee management, consultant or contractor management, customer engagements, purchases, sales, and contracts. The types of enterprises that produce and work with such records include but are not limited to for-profit companies, non-profit companies, and government agencies. Industry records Industry records represent those records that are common and apply only to a specific industry or set of industries. Examples include but are not limited to medical industry records (e.g., the Health Insurance Portability and Accountability Act), pharmaceutical industry records, and food industry records. Legal hold records Legal hold records are those records that are mandated, usually by legal counsel or compliance personnel, to be held for a period of time, either by a government or by an