− Origins and development! Graphical Screen Design. Design guidelines: specific and usually context dependent rules for designers to follow in order to achieve the principles. Design Standards: standards are to ensure quality, Design Principles Improve users task performance and reduce their effort. i.Direct relationship between hand and pointer location in terms of direction, distance and speed. Constraints. Alternatively screen based interfaces are better. These various formats or devices are challenging for screen designers, because content will be shown on different screens. iii.Movement is direct, in the same plane as screen. A. Paints a single dot of color B. Picks/Selects the color at the cursor C. Creates a histogram of the area around the cursor D. Fades the colors of an area centered on the cursor 13. Advantages. conceptualized as perceived affordances, which are essentially learned conventions. HCI (human-computer interaction) is the study of how people interact with computers and to what extent computers are or are not developed for successful interaction with human beings.. As its name implies, HCI consists of three parts: the user, the computer itself, and the ways they work together. An ill-designed Visual Display Terminal that has problems in ___ could contribute to users' vision problems. 34. WYSIWYG stands for ___ Where you see is where you get; What you see is what you get When you see it when you get; 36. Always design the screen or form with alternative cues, such as icons, written text, or audio cues that reinforce the content. Describe the goals of Human Computer Interaction The goals of HCI are to produce usable and safe systems, as well as functional systems. GOALS • A basic goal of HCI is – to improve the interactions between users and computers – by making computers more usable and receptive to the user's needs. e.g. practices and what it takes to design, execute, and assess good experimental research for HCI. luminance and contrast. It comes in contact with HCI to make the man and machine interaction more vibrant and interactive. systems. Technical Support for Users Support for System Development Process Human-Computer Interaction Visualization Collaboration Multimedia Documentation, Training, Help, Education Des HCI Goals At physical level, HCI concerns the selection of the most appropriate input devices and output devices for a particular interface or task Determine the best style of interaction, such as direct manipulation, natural language (speech, written input), WIMP (windows, icons, menus, pointers), etc. design goals based on theories of human-computer interaction. It is argued that these three elements are the most contributed terms in the model. User activity depends on memory and attention. Disadvantages . What is human-computer interaction (HCI)? Introduction. ___ is proportional to the amplitude of the sound. What is usability? Benyon D, Turner P, Turner S (2005) Designing interactive systems: a comprehensive guide to HCI and interaction design, 2nd edn. And as someone who has worked in UI Design for the last decade and taught a course on the topic, I’m excited to see how close we’re coming to a more immersive interactive future. 4.Touch Screen. with computers, 1989). HCI and Software Engineering. Software engineering is the study of designing, development and preservation of software. The Waterfall Method Interactive System Design These goals can be summarized as `to develop or improve the safety, utility, effectiveness, efficiency and usability of systems that include computers' (Interacting. One small but still essential component of graphical user interface design concerns the actual layout of elements on the screen. Usability engineering − Scenario-based usability engineering 2 What is HCI? introduction,definition ,goals ,why is hci important ,defining the user interface,the importance of good design,the importance of the user interface ,a brief history of screen design. Introduction to screen design and user interface modelling Robin Beaumont robin@organplayers.co.uk D:\web_sites_mine\HIcourseweb new\chap11\s10\hci_1.doc Page 4 of 35 2. The goals need to be specific and easy to identify if they have or have not been completed Examples: Find a stool on a shopping page and purchase it Locate the nearest bus stop that the 8 bus stops at Bad examples: Have fun using the site Find a bus to go somewhere . Saul Greenberg > courses > lecture topics in HCI > graphical screen design. Section 7.5 on Golden Rules and Heuristics (Schneiderman + Norman) 2 Basic principles at the screen level {Ask: What is the user doing {Think: What information is required {Design: Form follows function. HCI Handbook - User Experience Mike Kuniavsky Page 1 User Experience and HCI BY Mike Kuniavsky Introduction The goal for this chapter is to introduce concepts and techniques that help structure the application of HCI in a real-world environment by examining the larger context in which human-computer interaction happens and by using that context as the basis for the design of user … User By "user", we may mean an individual user, a group of users working together. What follows is an extensive compilation of general screen design guidelines for the user interface. Goals: 1.A basic goal of HCI is to improve the interactions between users and computers by making computers more usable and receptive to the user's needs. “Achieving goals within constraints” Goals -purpose Who is it for, Why do they want it, … Constraints Materials, Standards, … Trade-offs Many goals to satisfy… Need to know which to sacrifice For Human–Computer Interaction Utility C. Efficiency D. All of the above 12. Define User Experience goals. A system with good HCI design should be able to increase: ... screen resolution. ii.Requires no additional desk space. `provide `EXIT' command; Example of general guidelines Nielsen and Molich's Heuristic evaluation.