Jean E. Sammet
Page 370
A step-by-step approach to model the dynamic behavior and evaluate the performance of computing systems is proposed. It is based on a technique of variable aggregation and the concept of nearly decomposable systems, both borrowed …
P. J. Courtois
Pages 371-377
The paper describes the internal structure of a large operating system as a set of cooperating sequential processes. The processes synchronize by means of semaphores and extended semaphores (queue semaphores). The number of parallel …
Søren Lauesen
Pages 377-389
Over the past few years, a number of systems for the computer analysis of natural language sentences have been based on augmented context-free grammars: a context-free grammar which defines a set of parse trees for a sentence …
Naomi Sager, Ralph Grishman
Pages 390-400
This paper deals with the design of hierarchically structured programming systems. It develops a method for evaluating the cost of requiring programmers to work with an abstraction of a real machine. A number of examples from …
D. L. Parnas, D. P. Siewiorek
Pages 401-408
This paper describes a method for finding the rectangle of minimum area in which a given arbitrary plane curve can be contained. The method is of interest in certain packing and optimum layout problems. It consists of first determining …
H. Freeman, R. Shapira
Pages 409-413
In current machine designs, a machine address gives the user direct access to a single piece of information, namely the contents of that machine word. This note is based on the observation that it is often useful to associate …
Daniel G. Bobrow
Pages 413-415
It has been more than ten years since the passage of the Equal Pay Act and Title VII of the 1964 Civil Rights Act, which were intended to end employment and wage discrimination against women. Thus it seems an appropriate time …
Richard E. Weber, Bruce Gilchrist
Pages 416-418
Robert L. Ashenhurst
Pages 421-423
