hci-2004-lecture1

ITI Human-Computer Interaction04:574:230 : 

ITI Human-Computer Interaction04:574:230 Nick Belkin nick@belkin.rutgers.edu Doug Riecken riecken@us.ibm.com

Human-Computer Interaction : 

Human-Computer Interaction Design, Evaluation, and Implementation of Interactive Computing Systems for Human Use Software Projects: 60% failure rate Research has shown that HCI matters Learning time Performance speed Error rates User satisfaction Interface Design = Interdisciplinary Effort Human Psychology Specialists Visual & Textual Communication Specialists Software Developers Marketing Professionals

Course Goals : 

Course Goals Understand Basic HCI Concepts Lectures, readings, video, hands-on Study & Design Graphic Interfaces Web Design | Multimedia | Information Visualization Study Human Visual Perception Software Demos and Evaluations Practice User-Centered Design Methods Surveys | Scenarios | Expert Reviews | Usability Testing Video Analysis of User Interactions Rapid Prototyping PowerPoint | Dreamwaver | Java Creative Problem Solving in Groups Video Analysis of Group Interactions

Course Goals : 

Course Goals HCI course will Give You Understanding of theory and principles Hands-on Experience Practical Knowledge Marketable Skills

Course Requirements : 

Course Requirements Text Preece, J., Rogers, Y. & Sharp, H. (2002) Interaction design: beyond human-computer interaction. New York: Wiley. Grading Individual Exercises: 30% Designed to support term project Group Assignments: 40% Term Project: 30% Team project: how to form the teams? Attendance – Just Do It

Rules of the Road : 

Rules of the Road Exercise / Assignment Deadlines Submit at start of the class on due date No late assignments will be accepted Exceptions to Rule As defined by official Rutgers policies Sharing of Ideas & Teamwork Share ideas and discuss common problems You will work in teams for the Assignments & Term Project You are responsible to your teammates to shoulder your fair portion of the work load Plagiarism Share without engaging in plagiarism The Rutgers rules on plagiarism apply http://teachx.rutgers.edu/integrity/policy.html

HCI – Value Proposition : 

HCI – Value Proposition Software Projects 60% failure rate 25% never finished 35% partial success Early user-centered design saves money and time Management Support Crucial Low Road for Selling Usability Reduced development and support costs High Road for Selling Usability Greater quality and user satisfaction

HCI – Recognize Diversity : 

HCI – Recognize Diversity Usage Profiles Novice or first-time users Knowledgeable intermittent users Expert frequent users User Characteristics Age, Gender, Physical abilities, Education etc. Cultural and International Diversity Task Profiles Decomposition into multiple middle-level task actions, which are refined into atomic actions Interaction Styles Direct manipulation Menu selection Form fill-in Command language Natural language  Blending of interaction styles for diverse tasks and diverse users

HCI – Users & Evaluation : 

HCI – Users & Evaluation Define Target User Community Accommodate Human Diversity: no average user Evaluation MeasuresTime | Speed | Errors | Retention | Satisfaction Create & Test Design Alternatives Use a wide range of mock-ups Design  Test  Design  Test … Employ User-Centered Design Methods

Three Pillars of Interface Design : 

Three Pillars of Interface Design Guidelines Documents and Processes Inspired by HCI theories and models Provides social process for developers, records decisions for all to see, promotes consistency and completeness User Interface Software Tools Based on prototypes Expert Reviews and Usability Testing Grounded in controlled experiments

Logical User-Centered Design Methodology Developed by Kreitzberg (Cognetics, Princeton Junction, NJ) : 

Logical User-Centered Design Methodology Developed by Kreitzberg (Cognetics, Princeton Junction, NJ) Stage 1: Develop Product Concept Stage 2: Research and Needs Analysis Stage 3: Design Concepts & Key Screen Prototype Stage 4: Iterative Design and Refinement Stage 5: Implement Software Stage 6: Provide Roll-Out Support

User-Centered Design Methods : 

User-Centered Design Methods Pre-Design Ethnographic Observation Designing Scenario Development Participatory Design Post-Design Expert Reviews Heuristic Evaluation Guidelines Review Consistency Inspection Cognitive Walkthrough Formal Usability Inspection Usability Testing Acceptance Testing Field Testing

Slide 13: 

Prototyping

Slide 14: 

Product Design User-Centered Methods High Concept Prototype Anticipated Usage Profiles Leverage different Interaction Styles Software Development Internal Testing Product Release Pre-Design Ethnographic Observation Designing Scenario Development Participatory Design Post-Design Expert Reviews Heuristic Evaluation Guidelines Review Consistency Inspection Cognitive Walkthrough Formal Usability Inspection Usability Testing Surveys Acceptance Testing Field Testing ? ?

Slide 15: 

User-Centered Product Design

Creative Problem Solving in Groups : 

Creative Problem Solving in Groups Content vs. Process Study Human Communication Intent vs. Effect Listening Skills Itemized Response Address concerns in effective way Use Video Analysis