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planning addresses the unpredictable workload of an e-business to produce a competitive and cost-effective architecture and system. Virgílio A.F. Almeida and Daniel A. Menascé Capacity Planning: An Essential Tool for Managing Web Services S peed, around-the-clock availability, and security are the most common indicators of quality of service on the Internet. Management faces a twofold challenge. On the one hand, it must meet customer expectations in terms of quality of service. On the other hand, companies have to control IT costs to stay competitive.Therefore, capacity, reliability, availability, scalability, and security are key issues to Web services managers. E-business sites are complex system architectures with multiple interconnected layers composed of many software and hardware components, such as networks, caching proxies, routers, load balancers, high-speed links, and large-database mainframes. The e-business workload—composed of transactions and requests submitted to e-business services—is also complex because of its bursty and highly skewed load characteristics. Security and authentication requirements, payment protocols, and the unpredictable characteristics of Internet service requests add to the complexity. For example, it is common for Web sites to experience, without warning, a manifold increase in traffic volume. This type of load spike, also known as a flash crowd, creates terrible performance problems and slow…

ARCHETYPES, ORGANIZATIONAL LEARNING, AND VALUE CREATION: EXTENDING THE HUMAN RESOURCE ARCHITECTURE SUNG-CHOON KANG Korea University Business School SHAD S. MORRIS SKK Graduate School of Business SCOTT A. SNELL Cornell University Theories of knowledge-based competition emphasize the firm’s ability both to explore and to exploit knowledge as the source of value creation. We attempt to bring human resource management directly into this forum by introducing a framework of relational…

Oleksandr Malichevskyy ˜ DISSERTAC ¸ AO Projecto orientado pelo Prof. Doutor Alysson Neves Bessani e co-orientado pelo Prof. Doutor Marcelo Pasin ´ MESTRADO EM ENGENHARIA INFORMATICA Especializac¸a˜ o em Sistemas de Informac¸a˜ o 2013 Acknowledgments Initially, I would like to thank my advisers, Professors Marcelo Pasin and Alysson Bessani, for all lessons given to me day after day. I also thanks to my colleagues in the Navigators research group and the LaSIGE, and to all my…

Characterizing and Modeling Internet Traffic Dynamics of Cellular Devices † Department of Computer Science and Engineering, Michigan State University, East Lansing, MI, USA ‡ AT&T Labs – Research, Florham Park, NJ, USA M. Zubair Shafiq† Lusheng Ji‡ Alex X. Liu† Jia Wang‡ {shafiqmu,alexliu}@cse.msu.edu, {lji,jiawang}@research.att.com ABSTRACT Understanding Internet traffic dynamics in large cellular networks is important for network design, troubleshooting, performance…

Published by the University of Pennsylvania. Copyright © 2005–2011 by Karl T. Ulrich This work may be reproduced free of charge under a Creative Commons license so long as (1) the reproduced excerpt is at least one complete chapter in length, (2) full citation is made of the complete book, and (3) no charge other than the actual cost of reproduction is passed along to end users. Edition 1.0 PDF version formatted for 8 ½ by 11 printing Other formats available at http://www.ulrichbook.org/…

Veseth. What is IPE? International Political Economy (IPE) is the rapidly developing social science field of study that attempts to understand international and global problems using an eclectic interdisciplinary array of analytical tools and theoretical perspectives. IPE is a field that thrives on the process that Joseph Schumpeter called "creative destruction." The growing prominence of IPE as a field of study is in part a result of the continuing breakdown of disciplinary…

Software Synthesis A thesis submitted to the Centro de Inform´tica of Universidade Federal de a Pernambuco in partial fulfillment of requirements for the degree of Doctor of Philosofy. Advisor: Paulo Romero Martins Maciel Recife April 29th , 2005 Then Samuel took a stone, and put it up between Mizpah and Jeshanah, naming it Ebenezer, and saying, Up to now the Lord has been our help. I Samuel 7:12. i This thesis is dedicated to my mother, my wife, and my…

standpoint as part of mainstream analysis of scientific and technological production1. Despite the fact that science and technology are clearly distinct forms of knowledge (the former basically concerned to explain phenomena, the latter designed to deliver physical and social dominion and control over nature), in this paper they will be examined en bloc with regard to their relation to a particular social praxis. The object of analysis is thus species of scientific and…

Consider the source: The evolution of adaptations for decoupling and metarepresentation Leda Cosmides and John Tooby To appear in: Metarepresentation (Vancouver Studies in Cognitive Science) Dan Sperber, Editor. NY: Oxford University Press Copyright 2000 Leda Cosmides and John Tooby Caution: The print version may differ in minor respects from this draft. Posted only for scholarly/educational use. Please contact the publisher directly for permission to reprint. The…

Chinese Colonialism or South-South Cooperation? The Case of Chinese Resources for Infrastructure Contracts in Angola Aslaug Aarsæther Master thesis Department of Comparative Politics University of Bergen June 2011 Abstract This thesis examines the use of Chinese resources for infrastructure contracts in Angola. China has engaged in this mechanism that trades African natural resources for Chinese infrastructure construction with several African countries. The main debate in…