The Professional Adventure Writing System (PAWS) aka the Professional Adventure Writer (PAW) was Gilsoft's follow-up to its incredibly popular The Quill authoring system.
The system was created by Tim Gilberts and (original Quill author) Graeme Yeandle and was published in 1987 for Sinclair ZX Spectrum and also CP/M-based machines such as the Amstrad CPC & PCW. A version of the PAWS interpreter was created for the Commodore 64, but was only made available to commercial clients.
Elements of CP/M PAWS formed the basis of further systems created by Tim Gilberts, including SWAN and DAAD. Graeme Yeandle later created a version of PAWS for MS-DOS.
The system was a firm favourite of the independent adventure scene (both in the UK and in Spain), due to its ease of use, and many later systems were inspired by it including WinPAW, ngPAWS, NMP, SINTAC, Paguaglus, and Superglús.