A (Scott) information system is a way of presenting a domain.
Information systems were introduced by Dana Scott in a paper at ICALP 1982.
Scott, Dana S. 1982. ‘Domains for Denotational Semantics’. In Automata, Languages and Programming, edited by Mogens Nielsen and Erik Meineche Schmidt, 140:577–610. Lecture Notes in Computer Science. Berlin, Heidelberg: Springer Berlin Heidelberg. https://doi.org/10.1007/BFb0012801.
@inproceedings{scott_1982,
address = {Berlin, Heidelberg},
series = {Lecture {Notes} in {Computer} {Science}},
title = {Domains for denotational semantics},
volume = {140},
doi = {10.1007/BFb0012801},
booktitle = {Automata, {Languages} and {Programming}},
publisher = {Springer Berlin Heidelberg},
author = {Scott, Dana S.},
editor = {Nielsen, Mogens and Schmidt, Erik Meineche},
year = {1982},
pages = {577--610}
}