CPSC 155b Spring 2003 E Commerce Doing Business on the Internet Homework 5 Page 1 of 2 Homework 5 This assignment must be submitted electronically using the Yale Classes server by 5pm EDT Tuesday April 15 2003 It covers readings and lectures through Thursday April 10 2003 Late homeworks will not be accepted Please be sure to type your name and e mail address at the top of your homework assignment In addition please include your NetID and hw5 in the name of your file e g vr48 hw5 doc Detailed instructions for submitting your homework are available on the course webpage at http zoo cs yale edu classes cs155 spr03 submit html 1 AUTHENTICATION POLICY AND TECHNOLOGY 30 points This question addresses some of the points in the two Executive Summaries of NRC reports covered in Joe Pato s lecture on April 10 A 21 points For 7 points each give the names of three companies mentioned in CPSC 155b this semester whose businesses you think would benefit if the US Government heeded the recommendations and findings in Who Goes There Authentication Through the Lens of Privacy Briefly explain which products and or services offered by these companies you think could be marketed as solutions to the problems addressed in this report and who you think would buy them B 9 points Do you agree or disagree with the following statement made in the Executive Summary of IDs Not that Easy Questions about Nationwide Identity Systems Proponents of a nationwide identity system should be required to present a very compelling case addressing the issues raised in this report and soliciting input from a broad range of stakeholder communities Briefly explain why you agree or disagree on technical legal or political grounds 2 OPEN SOURCE SOFTWARE 25 points A 8 points For two points each what are the four freedoms of the open source movement B 5 points What is the difference between free software as open source developers use the term and software that s available free of charge C 12 points For four points each give three business models for information products or services e g those covered in Shapiro and Varian s Information Rules in The Digital Dilemma or in lecture notes from earlier in the semester and explain how they can be applied to open source software CPSC 155b Spring 2003 E Commerce Doing Business on the Internet Homework 5 Page 2 of 2 3 TRUSTED PLATFORMS 20 points A 12 points Attestable TCBs such as the Microsoft Next Generation Secure Computing Base could help entertainment content owners build more diverse and profitable online contentdistribution businesses but they will not be the only ingredients needed for such businesses to thrive For four points each give three other ingredients that will be used by content owners in conjunction with attestable TCBs to build Internet based distribution businesses B 8 points Microsoft s marketing strategy for the Next Generation Secure Computing Base platform claims that it will be useful not only or not even primarily to mass market entertainment content distributors Do you agree If not why not If so give an example of a class of users other than mass market entertainment content distributors that you think will benefit extensively from this new platform 4 WEB SEARCHING AND GOOGLE 25 points A 5 points What technical function is performed by the Index Server cluster in Google s system B 5 points What technical function is performed by the Doc Server cluster in Google s system C 5 points Web page meta tags fonts headings and content of neighboring pages can make search engines jobs easier by for example clarifying which of several meanings of a word is the relevant one Unfortunately there is also a down side to search engines reliance on page content What is it D 10 points On April 7th 2003 the New York Times ran a story entitled Yahoo Plans Improvements in Effort to Regain Lost Ground Among the points made in this story are that Yahoo 1 plans to change the display style of its ads to make them more Google like i e to use more plain text and fewer flashy graphics and other clutter 2 plans to deliver locationbased content selected based on the user s registration information if he or she has provided it and other content from its directories as well as links to good pages and 3 plans eventually to start using Inktomi s search technology instead of Google s Yahoo s goal is to compete more effectively against Google Do you think that it will succeed Why or why not
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