Lesson 2

• will help you identify the bst practices in designing and developing systems and applications

  Guidelines
• While _ is very general, _ tend to be more specific

  principle guideline
• an international standard that document the guides the ergonomics aspects of HCI designs, with topics covering visual display, physical input devices, workplace/environment egonimics, and tactile/haptic interactions

  International Organization for Standardization (ISO) 9241 document
• _ are set of recommended information used to direct HCI design and development. These can be divided into _ and _

  HCI guidelines criteria category
• a writer and a consultant in interaction design, information architecture, and pre-design analysis. She design and built use interfaces for companies such as Google and Mathworks

  Jennifer Tidwell
• an American computer scientist combined few implied facts about designing and come up with below eight common guidelines

  Ben Shneiderman
• What Criteria: Combining colors in designing a website, size of an icon

  General HCI Design
• What criteria: Interactive interface of Facebook, interface of Adobe Photoshop

  Applications
• kids, visually challenged, baby boomers, students, athletes, elders

  User type
• NASA, ios, Android, Windows Xp

  Vendor/ Organization
• Office, outdoor, home, automobile, subway, hands-free, classroom

  Task/ Operational Context
• Smartphones, desktop, kiosk, embedded OS, cloud-basedd, MP3 player, ebook

  Platform/ System Setup
• Voice, gesture, multitouch, multimodal, menu driven, GUI/ Widgets

  Interface Style/ Modality
• Shneiderman's Eight Golden Rules

  strive for consistency, cater to universal usability, offer informative feedback, design dialogs to yield closure, prevent errors, permit easy reversal of actions, support internal locus of control, reduce short term memory load
• the main tactic of hcu in systems analysis and design is to repeatedly elicit _ from users about their experiences with prototyped designs

  feedback
• What Criteria? Visual Display Layout

  General HCI Design
• What criteria: Taking user Input

  General HCI Design
• What criteria? User with Disability

  User Type
• What criteria? Mobile device

  Platform type
• What category? avoid cluttered display, place important items consistently, place important items at top center, structure for easy comparison, align items on a page

  Visual display layout
• What category? minimal input actions by user, minimal memory load on users, compatibility of data entry with data display, clear and effective labeling of buttons and data entry fields

  Taking user input
• Summary of user with disability guidelines

  percievable, operable, understandable, robust