The technical and business challenges in wide deployment of WLAN Hotspot Networks
|
|
|
- Audrey Terry
- 10 years ago
- Views:
Transcription
1 The technical and business challenges in wide deployment of WLAN Hotspot Networks Microsoft Research ACM WMASH 2003 Panel, Sept. 19, 2003
2 Disclaimer These are my personal opinions only and not necessarily that of Microsoft Corporation
3 Reference P. Bahl, A. Balachandran et. al, PAWNs: Satisfying the Need for Ubiquitous Secure Connectivity and Location Services, IEEE Wireless Communications, Vol. 9, no. 1 (February 2002)
4 Hardware Growth & Costs Analysts project 48 million enabled Laptops and PDA s s by 2007 Gartner forecasts over 16 million access points and over 100 million LAN adapters worldwide by 2005 Prices for access points and adaptors continue to fall, with more than 50 vendors shipping equipment Enterprise APs dropped from $1000 to $375 with a 20x volume increase in 2001 Retail adaptor prices went from $250 to $50 BOM has dropped below $5 for.11b chip sets Growth of WiFi Phones
5 WiFi phones? Motorola announced a Wi-Fi phone for VoIP (early 04) Nokia D211 GPRS/Wi-Fi PC Card available now GPRS/Wi-Fi phone beta in late 2003 Qualcomm MSM7000 chip with integrated ARM CPU, CDMA, and Wi-Fi (early 04) HP & Dell have announced integrated phone/wi-fi PPCs in 04
6 Wi-Fi Landscape Major Operators: T-Mobile TeliaSonera AT&T Wireless Verizon Wireless Aggregators: GRIC IPass Boingo rovingip.net Emerging National (U.S.) Operators: Wayport Cometa Other emerging Branded Service Providers: Earthlink AOL Hot Spot Operators: Azure Networks Sip n Surf Surf Air-2-Lan FatPort Broadreach Networks Broadband Express Pronto Networks
7 Wi-Fi Landscape: Addl. Stake Holders IBM & Accenture Backend services Intel, TI, AMD Cisco WiFi chips and mobile services IOS on WiFi networking Toshiba, Apple HP Experience Hardware
8 Reality in Pictures
9 What do I know about this subject.. The Choice Network (Jan Nov. 2001) First Public Area WiFi Network (PAWN) Deployed in Crossroads Shopping Center, Bellevue, Washington, USA Features Intranet and Internet access Global authentication Privacy for users and security for operators Differentiated services based on policies Location based services Roaming support between multiple networks Packet level accounting Ease of deployment
10 Broadband wireless Internet connectivity & location services in public places:
11 Business Models WISP Start-ups Cellular Operators buy out / Invest in WISPs Wi-Fi fills in 3G gaps and provides higher speed T-Mobile runs the hotspots in Starbucks Sprint invested in Boingo Organic Growth The CHOICE Network Global authentication Individual Centric Cost and maintenance of equipment & services by local entity Tuned services: e.g. context and location aware
12 PAWN Customers Initial target - Individuals Not very successful Chicken and egg problem, not enough hot- spots, subscriber fee is high, few takers Evolving towards Businesses Rethinking, go after the mobile workforce Here s the justification..
13 Mobile Workforce 2005 Estimate: 4.5 million users out of 16 million mobile workers will use PAWNs Employees (000s) 21,000 20,000 19,000 18,000 17,000 16,000 15,000 14,000 13,000 12,000 11,000 US Mobile Workforce in All Industries (Year End) 19,532 18, Year CAGR: 4% 18,061 17,368 16,701 16,059 15,443 14,850 14,280 13,731 20, In % of all business laptops will include WiFi versus 37% of Consumer lapops Hope: The mobile workforce will drive a need for increasingly greater hot spot deployment
14 What about Subscriber Cost? Hope: Pressure from competition will continue to drive down pricing over time while also fueling hot spot buildout $80 $70 $60 $50 $40 $30 $20 $10 $0 Boingo Unlimited Current Monthly Pricing for PWLAN Service Providers $75 T Mobile National $50 T Mobile Local $30 Wayport $30 Boingo Pro $25 $25 Joltage hereuare Average $36 $20 $20 WiFi Metro Want: Pricing needs to get below $25/month
15 PAWN Market Total Retail US PWLAN Subscribers Subscribers (000s) 10,000 9,000 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1, Consumer Business Year CAGR: 92% 215 2, ,705 4,551 1,604 2,947 7,196 2,506 4,690 9,333 3,373 5, ~9 million subscribers paying $25 / month results in a $2.7 billion services market by 2007.
16 So, what am I we saying
17 The CHOICE model is good Small hotspot operators (WISPs( WISPs) ) have tried & failed e.g. Mobilestar bankruptcy Large Telcos can t t cover it all (not growing fast enough) Ignore small businesses (malls, restaurants, museums etc.) Impacting the mobile workforce alone is not enough Benefits of hardware cost reduction not passed on to user Win-Win for all: Organic Growth (CHOICE) Targets the individual Small businesses become hot-spots (greater overall coverage) All stakeholders benefit Easy to incorporate location services
18 Thanks! Details in: P. Bahl, A. Balachandran et. al, PAWNs: Satisfying the Need for Ubiquitous Secure Connectivity and Location Services, IEEE Wireless Communications, Vol. 9, no. 1 (February 2002) Contact [email protected]
WiFi in the United States
Gerbsman Partners 2003 WiFi in the United States About this report Gerbsman Partners decided late in 2002 to expand its international business model to focus on and to develop Domain Expertise in the worldwide
Hacking The Invisible Network
Hacking The Invisible Network The Risks and Vulnerabilities Associated with Wireless Hotspots Michael Sutton Pedram Amini Purpose Study security from two points
802.11: THE Hotspot. WiFi Metro Inc.
802.11: THE Hotspot WiFi Metro Inc. May 16, 2002 Arturo Pereyra General Manager & Co-Founder www.wifimetro.com I Company Overview II Market Overview III Business Model IV Rollout & Critical Success Factors
Wireless Solutions. Working. US Wireless Data Market. Strategy, Business Development and Marketing for Wireless Businesses. Enterprise Segment
Working Wireless Solutions Strategy, Business Development and Marketing for Wireless Businesses US Wireless Data Market Enterprise Segment April 2003 Written by Derek Kerton and Hu Bin THE KERTON GROUP
Wi-Fi in the Netherlands
Wi-Fi in the Netherlands Gerd-Jan de Leeuw Msc Candidate SEPAM [email protected] 16-06-2006 TU DELFT The Wi-Fi Research Program Outline Wi-Fi hardware Hotspot market Public Wi-Fi initiatives Other
Actors at the telecom market
Actors at the telecom market There are many types of actors at the market and many actors within each type of actors We will run a small exercise on market actors that you can identify What actors will
Enterprise - Network, Servers, Storage, NAS, SAN, HPC. Refurbished computing - Laptops, Workstations, Servers and more
Conbrio Technology Group Ltd is the result of several specialist businesses that have been brought together to provide a unique range of skills, services and products. This means that Conbrio is able to
The Internet of Things in Smart Buildings 2014 to 2020
The Internet of Things in Smart Buildings 2014 to 2020 THIS REPORT IS A NEW 2014 STUDY WHICH MAKES AN OBJECTIVE ASSESSMENT OF THE MARKET FOR INTERNET OF THINGS TECHNOLOGIES, NETWORKS AND SERVICES IN BUILDINGS
Cellular Data Offload. And Extending Wi-Fi Coverage. With Devicescape Easy WiFi
Cellular Data Offload And Extending Wi-Fi Coverage With Devicescape Easy WiFi Case Study October 2010 List of Acronyms 3G Third Generation 4G Fourth Generation API Application Programming Interface AP
Co-existence of Wireless LAN and Cellular Henry Haverinen Senior Specialist Nokia Enterprise Solutions
Co-existence of Wireless LAN and Cellular Henry Haverinen Senior Specialist Nokia Enterprise Solutions 1 2005 Nokia city_wlan_2005_haverinen.ppt / 2005-08-19 / HH Outline Key use cases of integrating Wireless
New Study Finds Wireless VoIP Emerging as Threat to Mobile Carrier's Profits and Revenue
Page 1 of 5 The World's Largest Source of Broadband Wireless Information Chinese, French, German, Italian, Japanese, Korean, Portuguese, Spanish HOME ABOUT BWE CONTACT BWE SITE MAP BWE LOGIN SUBSCRIBE
NCR SERVICES FOR WIRELESS LANs. An NCR White Paper
NCR SERVICES FOR WIRELESS LANs An NCR White Paper Demand for Wireless LAN (WLAN) is continuing to grow, fueled by the increasing business use of tablets, social media and other applications. NCR Services
White Paper. D-Link International Tel: (65) 6774 6233, Fax: (65) 6774 6322. E-mail: [email protected]; Web: http://www.dlink-intl.
Introduction to Voice over Wireless LAN (VoWLAN) White Paper D-Link International Tel: (65) 6774 6233, Fax: (65) 6774 6322. Introduction Voice over Wireless LAN (VoWLAN) is a technology involving the use
Source: J son & Partners Consulting
Decrease in operators revenues is happening due to the increasing competition on the telecom market: tariffs are decreasing; clients loyalty is not that strong to the particular cellular operator. Same
If you can't beat them - secure them
If you can't beat them - secure them v1.0 October 2012 Accenture, its logo, and High Performance delivered are trademarks of Accenture. Preface: Mobile adoption New apps deployed in the cloud Allow access
Trends in IP Telecommunication
Trends in IP Telecommunication Dr. Mohammed Khurrum [email protected] Chairman, Exordium Networks Inc. Nisar Ahmad [email protected] Touchstone Communications Inc. Abstract The
Accelerating Wireless Broadband. Sparking New Competition in Broadband Through the IEEE* 802.16 WirelessMAN Specification
Accelerating Wireless Broadband Sparking New Competition in Broadband Through the IEEE* 802.16 WirelessMAN Specification Broadband has been a long time coming, and for most people it s still not here yet.
Intelligence at the Edge: Data Analytics in the Mobile World to Improve Business Decisions and Generate Value
Intelligence at the Edge: Data Analytics in the Mobile World to Improve Business Decisions and Generate Value Thank You to our Sponsors! #IoTWF Tech-04 Panel: Intelligence at the Edge: Data Analytics in
Supporting Municipal Business Models with Cisco Outdoor Wireless Solutions
Supporting Municipal Business Models with Cisco Outdoor Wireless Solutions EXECUTIVE SUMMARY Outdoor wireless networks are playing a vital role in helping municipalities deliver critical services to citizens.
UK - Tablet PC Market Forecast & Opportunities, 2016
Brochure More information from http://www.researchandmarkets.com/reports/2014047/ UK - Tablet PC Market Forecast & Opportunities, 2016 Description: Tablet PCs emerged as a revolutionary gadget in the consumer
Best Practices for Secure Mobile Access
Best Practices for Secure Mobile Access A guide to the future. Abstract Today, more people are working from more locations using more devices than ever before. Organizations are eager to reap the benefits
Carrier WiFi and Small Cells in LTE and Beyond: Market Opportunities and Forecasts 2015-2020
Brochure More information from http://www.researchandmarkets.com/reports/3251110/ Carrier WiFi and Small Cells in LTE and Beyond: Market Opportunities and Forecasts 2015-2020 Description: Mobile network
what does it mean for the mobile professional?
feature Enter broadband WWAN Enter broadband WWAN: what does it mean for the mobile professional? Increasingly, seamless high-speed connectivity is essential to the success of any business as well as to
Managed Services 2015
Managed Services 2015 Executive Summary CMR Market Research March 2015 Reproduction without permission 1 The contents of this report represent CMR s analysis of the information available to the public
How to succeed in the WLAN
How to succeed in the WLAN - a Lesson from Wired ADSL in KOREA Jae-Kyung Kim([email protected]) KT, Republic of KOREA I. Introduction Transition from wired to wireless is an irreversible trend, and the
Oracle s Secure HetNet Backhaul Solution. A Solution Based on Oracle s Network Session Delivery and Control Infrastructure
Oracle s Secure HetNet Backhaul Solution A Solution Based on Oracle s Network Session Delivery and Control Infrastructure HetNets are a gradual evolution of cellular topology, not a distinct network unto
Design of a Network Security Testing Environment
Design of a Network Security Testing Environment T. Andrew Yang ([email protected]) 1 Overview The primary objective of designing a high-speed networking environment is to build a set of interconnected networks
WHITE PAPER. Deploying Mobile Unified Communications for Cisco
WHITE PAPER Deploying Mobile Unified Communications for Cisco Table of Contents 1. Introduction...3 2. What are the drivers for deploying Mobile Unified Communications?... 3 3. What factors influence which
Realising the LTE vision
Realising the LTE vision Jane van Beelen Executive Director, Regulatory AUTHOR TITLE SECURITY CLASSIFICATION VERSIONS LABEL Forecast: Handset versus Laptops in millions Global shipments
How To Understand The Business Case For Big Data
Brochure More information from http://www.researchandmarkets.com/reports/2643647/ Big Data and Telecom Analytics Market: Business Case, Market Analysis & Forecasts 2014-2019 Description: Big Data refers
MANAGED SERVICES IN AN IP WORLD: GLOBAL OPPORTUNITIES FOR WIRELESS AND WIRED NETWORKS
MANAGED SERVICES IN AN IP WORLD: GLOBAL OPPORTUNITIES FOR WIRELESS AND WIRED NETWORKS 2013-2017 MARCH 2013 PO Box 34 Mountain Lakes, New Jersey 07046 USA 973-541-9600 phone [email protected] http://www.insight-corp.com
Value networking via FMC (Broadband Extension by Wireless LAN)
www.nespot.com Value networking via (Broadband Extension by Wireless LAN) HAHN, WON-SIC Ph.D. Managing Director Fixed Mobile Convergence Business Department KT [email protected] o) 82-31-727-2970 Hp) 82-16-9777-6711
MAKING THE RIGHT CONNECTIONS
MAKING THE RIGHT CONNECTIONS The risks of using public Wi-Fi for business The Connected Workplace Series The Rise of Mobile Devices in the Workplace Laptop shipments have surpassed desktop shipments, smartphone
WHITE PAPER. Mobility Services Platform (MSP) Using MSP in Wide Area Networks (Carriers)
WHITE PAPER Mobility Services Platform (MSP) Using MSP in Wide Area Networks (Carriers) Table of Contents About This Document... 1 Chapter 1 Wireless Data Technologies... 2 Wireless Data Technology Overview...
ShoreTel Mobility Version 4.6 Platform Support Guide. Rev. 1
ShoreTel Mobility Version 4.6 Platform Support Guide Rev. 1 Document and Software Copyrights Copyright 1998-2011 by ShoreTel Inc., Sunnyvale, California, USA. All rights reserved. Printed in the United
Wireless (Select Models Only) User Guide
Wireless (Select Models Only) User Guide Copyright 2008 Hewlett-Packard Development Company, L.P. Windows is a U.S. registered trademark of Microsoft Corporation. Bluetooth is a trademark owned by its
Power Over Ethernet POE IS NOW HERE!!!
Power Over Ethernet POEISNOWHERE POE IS NOWHERE POE IS NOW HERE!!! What is PoE Agenda Market Overview and Key trends Main applications PoE in the SCS SCS Market Immediate Needs SCS Market Long term Needs
High-Speed Internet Access.
High-Speed Internet Access. Your mobile workspace at this Hotspot. 1 deutsch Wireless surfing at Hotspots one way or another. 32 You have a WLAN-enabled device. 33 With a WLAN-compatible notebook you can
Controller Management
Controller Management - Setup & Provisioning - 1 PRONTO SERVICE CONTROLLER (PN-CPP-A-1422) 2 PSC Key Features Fully interoperable with IEEE802.11b/g compliant products External AP support and management
Go Wireless. Open up new possibilities for work and play
Go Wireless Open up new possibilities for work and play Start with 3 pieces A typical home or small-office wireless LAN requires only 3 pieces of hardware. With these 3 pieces, you re ready to get started!
Apple: Another Byte 5/12/2009. Agenda. Strategic Issue Recommendation Environmental Analysis Firm Analysis Options Implementation Conclusion
Apple: Another Byte Agenda Strategic Issue Recommendation Environmental Analysis Firm Analysis Options Conclusion Strategic Issue Apple is facing a projected decline in earnings per share in 2009 and must
Boosting Business Mobility and Responsiveness with the Cisco Unified Wireless Network
Solution Overivew Boosting Business Mobility and Responsiveness with the Cisco Unified Wireless Network EXECUTIVE SUMMARY Today s businesses are turning to wireless networking to give employees immediate
Entering the cloud fray
ebook Entering the How telcos and service providers can build successful cloud strategies in an evolving market DEPLOYMENT STABILITY SCALABILITY COST EFFECTIVE 2 Is this ebook right for me? This ebook
The Metamorphosis of Communications Competition
The Metamorphosis of Communications Competition Driven By Broadband, Internet & CloudTechnologies The Transformation of Communications Competition Requires a Transformation in Communications Law Scott
Global BYOD Market 2015-2019
Brochure More information from http://www.researchandmarkets.com/reports/3145237/ Global BYOD Market 2015-2019 Description: About BYOD BYOD is a policy that allows employees to access corporate data and
Performance Testing of 802.11n Enterprise Access Points
Performance Testing of 802.11n Enterprise Access Points April, 2012 Copyright 2012 Novarum Inc. Executive Summary 2 Test Environment 3 Testing Methodology 5 Test Results 6 Coverage and Capacity 8 Conclusions
Contact Your Authorized Toshiba Dealer for a Demo, Estimate or Network Assessment.
Contact Your Authorized Toshiba Dealer for a Demo, Estimate or Network Assessment. TOSHIBA S AWARD WINNING BUSINESS TELEPHONE SYSTE The Innovative IP Communication Solution There is so much you need from
Cisco / Microsoft Unified Communications Integration Overview. 2010 Cisco and/or its affiliates. All rights reserved.
Cisco / Microsoft Unified Communications Integration Overview 2010 Cisco and/or its affiliates. All rights reserved. 1 2010 Cisco and/or its affiliates. All rights reserved. 2 3.6 8 million 600k 300k Billion
MaaS360 Mobile Service
Services > Overview MaaS360 Mobile Service Go Mobile! Everything for mobile work - visibility, control, easy mobile connectivity, management tools and security - all in one economical, hosted solution.
Development of Voice over WiFi by Integrating Mobile Networks
Please cite this paper as: OECD (2005), Development of Voice over WiFi by Integrating Mobile Networks, OECD Digital Economy Papers, No. 93, OECD Publishing. http://dx.doi.org/10.1787/232404312851 OECD
VoIP over Wireless Parasitic Disruption or Geeky Market Niche?
VoIP over Wireless Parasitic Disruption or Geeky Market Niche? Stagg Newman McKinsey & Company Business Implications of VoIP CITI Workshop May 25, 2004 0 THE VISION VoIP + Broadband Wireless = Disruption
Mind Commerce. http://www.marketresearch.com/mind Commerce Publishing v3122/ Publisher Sample
Mind Commerce http://www.marketresearch.com/mind Commerce Publishing v3122/ Publisher Sample Phone: 800.298.5699 (US) or +1.240.747.3093 or +1.240.747.3093 (Int'l) Hours: Monday - Thursday: 5:30am - 6:30pm
DON T LET YOUR FLEET TELEMATICS SOLUTION GO DARK Navigating the Upcoming AT&T 2G Shutdown
DON T LET YOUR FLEET TELEMATICS SOLUTION GO DARK Navigating the Upcoming AT&T 2G Shutdown AT&T has announced it will shut down its 2G network by Jan. 1, 2017, and there are reports that the process of
Global Healthcare Cloud Computing Market 2015-2019
Brochure More information from http://www.researchandmarkets.com/reports/3129428/ Global Healthcare Cloud Computing Market 2015-2019 Description: About Healthcare Cloud Computing Increased adoption of
08/18/2014. Agvance IT Workshop. Jay Nottingham, Information Systems Specialist
Agvance IT Workshop Jay Nottingham, Information Systems Specialist 1 To Be Covered Glancing Back, Looking Forward Operating Systems and SQL Server Versions IT Best Practices Glancing Back, Looking Forward
Personal Broadband and the Enterprise Customer
Personal Broadband and the Enterprise Customer Two years ago a telecommunications director of a large U.S. bank was meeting with a small high-tech company in Silicon Valley that had a technology that could
Bridging the Last Mile California s Wireless Internet Providers
Bridging the Last Mile California s Wireless Internet Providers Lead Author: Adam Morrison, Intern, California Broadband Initiative: www.calink.ca.gov Disclaimer: This document is a working draft and intended
Enabling Notebook Users with Wide-Area Broadband Access
QUALCOMM Incorporated September, 2005 Table of Contents Executive Summary.............................................. 1 Introduction................................................... 1 Market Drivers
OTT, COMPETING OR COLLABORATING OTT ON INDONESIA TELECOMMUNICATION BUSINESS
OTT, COMPETING OR COLLABORATING OTT ON INDONESIA TELECOMMUNICATION BUSINESS Guillaume Mascot December 5 th, 2013 INDUSTRY TRENDS FAST GROWING MARKETS +30% +32% +346% FIXED BROADBAND CONNECTIONS 532 Million
Wireless (Select Models Only) User Guide
Wireless (Select Models Only) User Guide Copyright 2007, 2008 Hewlett-Packard Development Company, L.P. Windows is a U.S. registered trademark of Microsoft Corporation. Bluetooth is a trademark owned by
Building Wireless Networks. Tariq Hasan Regional Sales Manager, MENA Wireless Network Solutions Motorola Solutions
Building Wireless Networks Tariq Hasan Regional Sales Manager, MENA Wireless Network Solutions Motorola Solutions Agenda Evolution of WLAN Benefits of Distributed architecture Next Generation Verticals
REPORT HIGHLIGHTS. Infonetics: Videoconferencing is up as market moves to lower-cost solutions
REPORT HIGHLIGHTS Lead Analyst: Matthias Machowinski Directing Analyst, Enterprise Networks and Video Infonetics Research +1-408-583-3363 [email protected] Twitter: @infonetics Infonetics: Videoconferencing
WiMax broadband wireless access. Wireless communication is considered one of the big engineering success stories
WiMax broadband wireless access Introduction Wireless communication is considered one of the big engineering success stories over the last two decades. It is one of the rapidly changing fields that demand
CONNECTING THE WIRELESS TO THE WIRED NETWORK. By: Russ Schomber VP Network Services, Backhaul Services Group
CONNECTING THE WIRELESS TO THE WIRED NETWORK By: Russ Schomber VP Network Services, Backhaul Services Group Overview Todays Wireless Networks Cell Tower Density Nationally & Locally Typical Cell Tower
Wi-Fi integration with cellular networks enhances the customer experience. White paper
Wi-Fi integration with cellular networks enhances the customer experience White paper Executive summary Contents Executive Summary 2 Mobile data services fuel 3 the traffic tornado Wi-Fi integration offers
Fixed Mobile Convergence Options for the Enterprise
March 08 Fixed Mobile Convergence Options for the Enterprise Michael F. Finneran d B r n A s s o c i a t e s, I n c. 8 9 C u r t i s R o a d, W o o d m e r e, N Y 5 9 8 5 6. 5 6 9. 4 5 5 7 FMC Options
The evolution of cloud computing, public, private & hybrid cloud services
Brochure More information from http://www.researchandmarkets.com/reports/2781849/ Pricing the Cloud Description: Pricing the Cloud Cloud computing service pricing including public, private & hybrid clouds
Wireless LANs vs. Wireless WANs
White Paper Wireless LANs vs. Wireless WANs White Paper 2130273 Revision 1.0 Date 2002 November 18 Subject Supported Products Comparing Wireless LANs and Wireless WANs Wireless data cards and modules,
Transforming Mobile Networks from 2G/3G to 4G LTE
Transforming Mobile Networks from 2G/3G to 4G LTE Forward-Looking Statements Statements in this presentation that are not historical fact are forward-looking statements. Some of the forwardlooking statements
Enterprise Mobility Solution Puts Unified Communications on the Smartphones Employees Love
Enterprise Mobility Solution Puts Unified Communications on the Smartphones Employees Love Advanced Network Systems now offers ShoreTel s Mobility Solution. ShoreTel Mobility enables businesses of all
M2M Analytics: A New Wave of Innovation
M2M Analytics: A New Wave of Innovation By Susan Simmons and Sidhant Jalan To date, typical enterprise Machine to Machine (M2M) projects have replaced legacy processes to serve basic operational needs,
Carrier WiFi. Vendor Scorecard IHS INFONETICS REPORT EXCERPTS. Excerpts. July 2015. By Research Director Richard Webb
IHS INFONETICS REPORT EXCERPTS Carrier WiFi Vendor Scorecard Excerpts July 2015 By Research Director Richard Webb Telecommunications Equipment Vendor Scorecard: Excerpts Reprinted with permission from
