The composition of these two processes would be as given in Figure 2 The composition is somehow the "product" of these processes, and is a complete representation of this concurrent system. Its nodes represent the possible states that the system can be in, e.g., (1, 1) represents that I already drank my coffee, while I have thought about what to say, but have not said it yet. The edges give the possible transitions between these (composite) states, and so each path from the initial state (0, 0) to the final state (1,2) represents a possible trace of this system, e.g., think→ drink coffee → talk. start (0,0) think (0, 1) talk drink coffee drink coffee drink coffee (0, 2) (1,2) talk (1, 1) think (1,0) Figure 2: The composition of the two concurrent processes of Figure 1
The composition of these two processes would be as given in Figure 2 The composition is somehow the "product" of these processes, and is a complete representation of this concurrent system. Its nodes represent the possible states that the system can be in, e.g., (1, 1) represents that I already drank my coffee, while I have thought about what to say, but have not said it yet. The edges give the possible transitions between these (composite) states, and so each path from the initial state (0, 0) to the final state (1,2) represents a possible trace of this system, e.g., think→ drink coffee → talk. start (0,0) think (0, 1) talk drink coffee drink coffee drink coffee (0, 2) (1,2) talk (1, 1) think (1,0) Figure 2: The composition of the two concurrent processes of Figure 1
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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The composition of Figure 2 has 6 states — how many many traces does it have?
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