DOTs were a type of worker robot utilized by Starfleet for repairs, refits, and maintenance. They were able to operate in both exterior and interior of starships and space stations, typically seen using anti-grav technology and maneuvering thrusters to make their way through environments. (DIS: "Such Sweet Sorrow, Part 2", "Scavengers"; ST: "Ask Not")

History

In 2258, the USS Enterprise featured multiple DOT-7s in its inventory; they were used both internally and externally. The USS Discovery also utilized DOT-7s when they first arrived in the 32nd century before being replaced by contemporary versions after the ships' refits.

By the 25th century, Starfleet was utilizing heavy duty models onboard its starships. These DOTs could be seen repairing the USS Titan-A when the ship had taken heavy damage to her warp core and other essential systems. (PIC: "Imposters")

By the 32nd century, they were designed with a wider detached head and smaller arms; the DOT-23s were capable of working alongside older models without issue. The newer models also featured internal data storage of a sufficient capacity to house the Sphere data that was normally stored within the USS Discovery's main computer. These DOTs also featured colored trims around their eyes and upper arms that corresponded to the various division uniform colors of this era. (DIS: "Scavengers", "There Is A Tide...", "That Hope Is You, Part 2")

The USS Athena featured a variety of DOT-23s with different markings, these DOTs also had the ability to speak. Aside from Janitorial duties, they are also used to assist in lessons by providing guidance to cadets. (SA: "Kids These Days", "Vitus Reflux")

List of DOTs

• DOT-7
  • Dot
• DOT-23
• Heavy duty DOT

Appendices

Appearances

Background information

According to Star Trek: Picard CG Supervisor Rommel S. Calderon, the DOTs seen briefly in season three were modified versions of DOT-7s that were "enbiggen[ed]" by 2.5 times to be readable on screen from a distance. [1]

Apocrypha

Star Trek Online features combat and non-combat versions of DOT-7s and a variety of DOT-23s as player-owned "pets"; in-game the DOT-7s are described as aging utility drones.