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ELECTRONIC SELF-CHECKOUT SYSTEM VS CASHIER OPERATED SYSTEM: A PERFORMANCE BASED COMPARATIVE ANALYSIS by Gregory E. Opara-Nadi A Dissertation Presented in Partial Fulfillment Of the Requirements for the Degree Doctor of Philosophy Capella University May, 2005 ©Gregory Opara-Nadi, 2005 ELECTRONIC SELF-CHECKOUT SYSTEM VERSUS CASHIER OPERATED SYSTEM: A PERFORMANCE BASED COMPARATIVE ANALYSIS by Gregory E. Opara-Nadi has been approved May 2005 APPROVED: JIM MIRABELLA, D.B.A., Faculty Mentor

Walden University COLLEGE OF MANAGEMENT AND TECHNOLOGY This is to certify that the doctoral dissertation by William Yaw Adufutse has been found to be complete and satisfactory in all respects, and that any and all revisions required by the review committee have been made. Review Committee Dr. James Schiro, Committee Chairperson, Applied Management and Decision Sciences Faculty Dr. Thea Singer, Committee Member, Applied Management and Decision Sciences Faculty Dr. Lilburn Hoehn, Committee Member

FILM LANGUAGE FILM LANGUAGE A Semiotics of the Cinema Christian Metz Translated by Michael Taylor The University of Chicago Press Published by arrangement with Oxford University Press, Inc. The University of Chicago Press, Chicago 60637 © 1974 by Oxford University Press, Inc. All rights reserved. English translation. Originally published 1974 Note on Translation © 1991 by the University of Chicago University of Chicago Press edition 1991 Printed in the United States of America 09 08 07 6

From the Library of Girro From the Library of Girro@qq.com Introduction to Materials Management SIXTH EDITION From the Library of Girro J. R. Tony Arnold, P.E., CFPIM, CIRM Fleming College, Emeritus Stephen N. Chapman, Ph.D., CFPIM North Carolina State University Lloyd M. Clive, P.E., CFPIM Fleming College Upper Saddle River, New Jersey Columbus, Ohio From the Library of Girro@qq.com From the Library of Girro Editor in Chief: Vernon R. Anthony Acquisitions Editor:

Suppose you are considering renting an apartment. You, the renter, can be viewed as an agent while the company that owns the apartment can be viewed as the principal. What principalagent conflicts do you anticipate? Suppose, instead, that you work for the apartment company. What features would you put into the lease agreement that would give the renter incentives to take good care of the apartment? The agent (renter) will not take the same care of the apartment as the principal (owner), because