Journal article
Abstract types defined as classes of variables
Abstract
The concept of “type” has been used without a precise definition in discussions about programming languages for 20 years. Before the concept of user defined data types was introduced, a definition was not necessary for discussions of specific programming languages. The meaning of the term was implicit in the small list of possible types supported by the language. There was even enough similarity between different languages so that this form of …
Authors
Parnas DL; Shore JE; Weiss D
Journal
ACM SIGMOD Record, Vol. 8, No. 2, pp. 149–154
Publisher
Association for Computing Machinery (ACM)
Publication Date
March 1976
DOI
10.1145/984344.807133
ISSN
0163-5808