The document discusses three main records management models: 1) The European Administrative model which does not distinguish between records and documents and is managed by administrative staff with no clear retention schedules. 2) The Lifecycle model conceived in the 1930s which defines the lifecycle of a record from creation to disposal and is based on a linear timeline. It separates records management and archival functions. 3) The Records Continuum model which defines records management as a continuum with four dimensions of time and space. It abolishes differences between archivists and records managers.