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Cs 575 Week 6 Spring 2008 Bapa Rao. Outline. Organizational Review of previous meeting Student presentations Discussions. Organizational. Good news: forums not entirely dead Not exactly buzzing either Reminder: Please use a recognizable handle or sign your posts so we know who you are
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Outline • Organizational • Review of previous meeting • Student presentations • Discussions
Organizational • Good news: forums not entirely dead • Not exactly buzzing either • Reminder: Please use a recognizable handle or sign your posts so we know who you are • Peer Evaluation • Template is now online • Assignment for next meeting • Review presentations and reading materials so far • Discuss concepts and issues that we have identified
Review of previous meeting • Licklider’s Human-computer symbiosis paper • Student presentations • Gender HCI • Everyday Activity-based web design • Cyborg • E-spionage • Discussion • Broadly, user-aware design • What about differences in designer • E.g., gender differences • Symbiosis or tight coupling • Value-based user requirements • Legitimate vs illegitimate
Today’s Student presentations • Safety-critical applications by Ziba Rostamian • Web Usability by Raghavender Budamala • Nanotechnology by Aditya Jamwal • CAPTCHA & The ESP Game by Jayesh Shah
Discussion • Licklider’s vision • Man-computer symbiosis • Formulating vs. solving • Speed of interaction (real-time) • Computer as communication device • Communication: a comparison of models • Models ontologies, web 3.0, … • Licklider’s context: technical project meeting • Engelbart’s demo • Today’s contexts? • Creative informational activity vs. informational housekeeing • Affordability, accessibility, usability • Distributed intellectual resources • Critical mass in intellectual endeavors • On-line interactive communities • Issues considered by Licklider • Computer and humans have different skills • Prerequisites • Speed mismatch, memory / hardware, memory organization, language, I/O • High-level design of the DARPA internet as a communication medium • Other authors • Bush, Kay, Berners-Lee, Engelbart, … • Current technologies and directions
Man-computer symbiosis Review • Formulative thinking: • Humans: do the activity • Computers: facilitate • Real-time, high-speed • Neo-whorfian • 85% thinking time is housekeeping • Flexible handling of complex situations • Humans and Computers • Computers: routinizable work
Man-computer symbiosis • What is symbiosis? • Tight coupling • Mechanically extended man • Humanly extended machines • Chemical / electronic binding
Human-computer symbiosis • Issues • Speed mismatch • System requirements (hardware, memory, …) • Organizational mismatch: Memory organization (Information structuring and retrieval) • Language mismatch • What versus how • I/O mismatch • Voice, mobile, touch, …
Computer as communication device • “In a few years, men will be able to communicate more effectively through a machine than face to face” • What is communication? • Two tape recorders exchanging data • Two humans having a meeting • Collaborative Modeling
Licklider Contd--Economics • Models are complex • Simplification is risky and dangerous • Oversimplification • Premature simplification • Communicating models is expensive • Cost of not doing it?
Licklider Contd • Computer as switch vs. interactor • Distributed intellectual resources • ‘critical creative mass’ • Vision of internet • Store-and-forward technology • Economics: billing models
Vision of internet • Node • Mediator for online life: OLIVER • Social groups • Better for individual • Better for society