Z User Group
| Abbreviation | ZUG | 
|---|---|
| Named after | Z notation | 
| Formation | 14 December 1992 | 
| Founder | John Nicholls | 
| Founded at | London, England | 
| Type | User group | 
| Purpose | Support for Z notation activities, especially meetings | 
| Location | |
| Region served  | International | 
| Services | Conference organization | 
| Methods | Z notation | 
| Fields | Computer science, software engineering, formal methods | 
| Official language  | English | 
| Chair | Steve Reeves | 
| Secretary | Randolph Johnson | 
| Key people | John Nicholls; Jonathan Bowen; Mike Hinchey; Steve King | 
| Main organ | Conference proceedings | 
| Affiliations | Formal Methods Europe | 
| Website | zuser.org | 
The Z User Group (ZUG) was established in 1992 to promote use and development of the Z notation, a formal specification language for the description of and reasoning about computer-based systems. It was formally constituted on 14 December 1992 during the ZUM'92 Z User Meeting in London, England.