Excerpt from Simulating Distributed Database Operating Systems and Evaluating Concurrency Control Protocol Performance As described in detail later, the distributed simulator has as its building block a site simulator. This single-site simulator is in effect a centralized database simulator with communication support. We have implemented a site simulator and used it as a centralized database simulator to obtain the results described in this paper. Our reasons for not simulating distributed concurrency control protocols at this point follow. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.