Paradigm

The Daleks were organised into paradigms. (AUDIO: The Monster of Montmartre, PROSE: Engines of War, TV: Victory of the Daleks)

The Dalek Time Controller attempted to create a new paradigm of Daleks. (AUDIO: The Monster of Montmartre)

The Eternity Circle planned to create a new paradigm of Temporal Weapon Daleks and spread them throughout the universe through the use of the Daleks' progenitors. The Daleks harnessed energy from the Tantalus Eye to create a Temporal Cannon comprised of three moons to wipe Gallifrey from history, allowing them to finally win the Time War. With the Daleks in the Tantalus Spiral it was destroyed by Borusa. (PROSE: Engines of War)

Following the Last Great Time War, surviving bronze Daleks used a progenitor they had found to create a New Dalek Paradigm from pure Dalek DNA after they goaded the Eleventh Doctor into unwittingly providing a testimony which confirmed them as Daleks. Themselves impure, the old Daleks accepted that they were inferior and allowed themselves to be destroyed by their successors. (TV: Victory of the Daleks) The Paradigm's new casing model was the ninth distinct type identified by the Time Lords following the Type I, II, III, IV, V, VI, VII and the "Type VIII" bronze Daleks. (PROSE: Dalek Combat Training Manual) However, this model of casing fell out of favour following numerous defeats inflicted by the Doctor, such that the bronze Daleks returned as the drones of the Dalek Imperial Army as they were believed to provoke the most fear across the universe. (PROSE: Dalek: The Astounding Untold History of the Greatest Enemies of the Universe)

The Dalek Handbook
The Dalek Handbook identified several Dalek paradigms according to their real world appearance.
 * 1963: Skaro City Dalek
 * 1964: Dalek Earthforce, Saucer Commander, Supreme Controller
 * 1965 - 1967: Silver Dalek, Supreme Dalek, Imperial Guard Dalek
 * 1972 - 1985: Grey Dalek, Gold Dalek, Dalek Supreme
 * 1974 - 1984: Exxilon Dalek leader, Exxilon Dalek, Grey Dalek, Supreme Dalek
 * 1985 - 1988: Necros Dalek, Renegade Dalek, Supreme Dalek, Imperial Dalek
 * 2005 - 2010: Bronze Dalek, Imperial Guard Dalek, Black Dalek, Supreme Dalek
 * 2010: Ironside, New Dalek Paradigm (represented by Supreme Dalek)