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Cognitive Walkthrough
The cognitive walkthrough method is a usability inspection method used to identify usability issues in interactive systems, focusing on how easy it is for new users to accomplish tasks with the system. A cognitive walkthrough is task-specific, whereas heuristic evaluation takes a holistic view to catch problems not caught by this and other usability inspection methods. The method is rooted in the notion that users typically prefer to learn a system by using it to accomplish tasks, rather than, for example, studying a manual. The method is prized for its ability to generate results quickly with low cost, especially when compared to usability testing, as well as the ability to apply the method early in the design phases before coding even begins (which happens less often with usability testing). Introduction A cognitive walkthrough starts with a task analysis that specifies the sequence of steps or actions required by a user to accomplish a task, and the system responses to those act ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usability Inspection
Usability inspection is the name for a set of methods where an evaluator inspects a user interface. This is in contrast to usability testing where the usability of the interface is evaluated by testing it on real users. Usability inspections can generally be used early in the development process by evaluating prototypes or specifications for the system that can't be tested on users. Usability inspection methods are generally considered to be less costly to implement than testing on users. Usability inspection methods include: * Cognitive walkthrough The cognitive walkthrough method is a usability inspection method used to identify usability issues in interactive systems, focusing on how easy it is for new users to accomplish tasks with the system. A cognitive walkthrough is task-specific, where ... (task-specific) * Pluralistic walkthrough * Heuristic evaluation (general) or (domain or culture-specific ) * Action Analysis * Guideline scoring or testing References {{reflist See ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usability
Usability can be described as the capacity of a system to provide a condition for its users to perform the tasks safely, effectively, and efficiently while enjoying the experience. In software engineering, usability is the degree to which a software can be used by specified consumers to achieve quantified objectives with effectiveness, efficiency, and satisfaction in a quantified context of use. The object of use can be a software application, website, book, tool, machine, process, vehicle, or anything a human interacts with. A usability study may be conducted as a primary job function by a ''usability analyst'' or as a secondary job function by designers, technical writers, marketing personnel, and others. It is widely used in consumer electronics, communication, and knowledge transfer objects (such as a cookbook, a document or online help) and mechanical objects such as a door handle or a hammer. Usability includes methods of measuring usability, such as needs analysi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heuristic Evaluation
A heuristic evaluation is a usability inspection method for computer software that helps to identify usability problems in the user interface (UI) design. It specifically involves evaluators examining the interface and judging its compliance with recognized usability principles (the "heuristics"). These evaluation methods are now widely taught and practiced in the new media sector, where UIs are often designed in a short space of time on a budget that may restrict the amount of money available to provide for other types of interface testing. Introduction The main goal of heuristic evaluations is to identify any problems associated with the design of user interfaces. Usability consultants Rolf Molich and Jakob Nielsen developed this method on the basis of several years of experience in teaching and consulting about usability engineering. Heuristic evaluations are one of the most informal methodsNielsen, J., and Molich, R. (1990). Heuristic evaluation of user interfaces, Proc. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usability Inspection Method
Usability inspection is the name for a set of methods where an evaluator inspects a user interface. This is in contrast to usability testing where the usability of the interface is evaluated by testing it on real users. Usability inspections can generally be used early in the development process by evaluating prototypes or specifications for the system that can't be tested on users. Usability inspection methods are generally considered to be less costly to implement than testing on users. Usability inspection methods include: * Cognitive walkthrough (task-specific) * Pluralistic walkthrough * Heuristic evaluation (general) or (domain or culture-specific ) *Action Analysis * Guideline scoring or testing References {{reflist See also * Heuristic evaluation * Comparison of usability evaluation methods Usability testing methods aim to evaluate the ease of use of a software product by its users. As existing methods are subjective and open to interpretation, scholars have been studyin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usability Testing
Usability testing is a technique used in user-centered interaction design to evaluate a product by testing it on users. This can be seen as an irreplaceable usability practice, since it gives direct input on how real users use the system. It is more concerned with the design intuitiveness of the product and tested with users who have no prior exposure to it. Such testing is paramount to the success of an end product as a fully functioning application that creates confusion amongst its users will not last for long. This is in contrast with usability inspection methods where experts use different methods to evaluate a user interface without involving users. Usability testing focuses on measuring a human-made product's capacity to meet its intended purposes. Examples of products that commonly benefit from usability testing are food, consumer products, websites or web applications, computer interfaces, documents, and devices. Usability testing measures the usability, or ease of use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Task Analysis
Task analysis is the analysis of how a task is accomplished, including a detailed description of both manual and mental activities, task and element durations, task frequency, task allocation, task complexity, environmental conditions, necessary clothing and equipment, and any other unique factors involved in or required for one or more people to perform a given task. Information from a task analysis can then be used for many purposes, such as personnel selection and training, tool or equipment design, procedure design (e.g., design of checklists, or decision support systems) and automation. Though distinct, task analysis is related to user analysis. Safety Critical Task Analysis Safety Critical Task Analysis (SCTA) focuses on how tasks that are critical to major accident risk are performed. SCTA is a crucial assessment designed to predict and understand the role that human error plays in major accidents. This is a type or workshop conducted to support Major Accident Hazard (M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
End User
In product development, an end user (sometimes end-user) is a person who ultimately uses or is intended to ultimately use a product. The end user stands in contrast to users who support or maintain the product, such as sysops, system administrators, database administrators, Information technology (IT) experts, software professionals and computer technicians. End users typically do not possess the technical understanding or skill of the product designers, a fact easily overlooked and forgotten by designers: leading to features creating low customer satisfaction. In information technology, end users are not "customers" in the usual sense—they are typically employees of the customer. For example, if a large retail corporation buys a software package for its employees to use, even though the large retail corporation was the "customer" which purchased the software, the end users are the employees of the company, who will use the software at work. Certain American defense-related pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jakob Nielsen (usability Consultant)
Jakob Nielsen (born 5 October 1957) is a Danish web usability consultant, human–computer interaction researcher, and co-founder of Nielsen Norman Group. He was named the ''“guru of Web page usability”'' in 1998 by The New York Times and the ''“king of usability”'' by Internet Magazine. Background Jakob Nielsen was born 5 October 1957 in Copenhagen, Denmark. He holds a Ph.D. in 1988 in human–computer interaction from the Technical University of Denmark. Nielsen's earlier affiliations include Bellcore (now known as Telcordia Technologies, formally Bell Communications Research), teaching at the Technical University of Denmark, and the IBM User Interface Institute at the Thomas J. Watson Research Center. Career Sun Microsystems From 1994 to 1998, he was a Sun Microsystems Distinguished Engineer. He was hired to make heavy-duty enterprise software easier to use, since large-scale applications had been the focus of most of his projects at the phone company an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cognitive Dimensions
Cognitive dimensions or cognitive dimensions of notations are design principles for notations, user interfaces and programming languages, described by researcher Thomas R.G. Green and further researched with Marian Petre. The dimensions can be used to evaluate the usability of an existing ''information artifact'', or as heuristics to guide the design of a new one, and are useful in Human-Computer Interaction design. Cognitive dimensions are designed to provide a lightweight approach to analyse the quality of a design, rather than an in-depth, detailed description. They provide a common vocabulary for discussing many factors in notation, UI or programming language design. Also, cognitive dimensions help in exploring the space of possible designs through ''design maneuvers'', changes intended to improve the design along one dimension. List of the cognitive dimensions Thomas Green originally defined 14 cognitive dimensions: ; Abstraction gradient : What are the minimum and maxi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparison Of Usability Evaluation Methods
Usability testing methods aim to evaluate the ease of use of a software product by its users. As existing methods are subjective and open to interpretation, scholars have been studying the efficacy of each method and their adequacy to different subjects, comparing which one may be the most appropriate in fields like e-learning, e-commerce, or mobile applications. See also * Usability inspection Usability inspection is the name for a set of methods where an evaluator inspects a user interface. This is in contrast to usability testing where the usability of the interface is evaluated by testing it on real users. Usability inspections can gen ... * Partial concurrent thinking aloud References {{Reflist External links Exploring two methods of usability testing: concurrent versus retrospective think-aloud protocols Usability Human–computer interaction Computing comparisons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MobileHCI
The Conference on Mobile Human-Computer Interaction (MobileHCI) is a leading series of academic conferences in Human–computer interaction and is sponsored by ACM SIGCHI, the Special Interest Group on Computer-Human Interaction. MobileHCI has been held annually since 1998 and has been an ACM SIGCHI sponsored conference since 2012 The conference is very competitive, with an acceptance rate of below 20% in 2017 from 25% in 2006 and 21.6% in 2009MobileHCI 2011was held in Stockholm, Sweden, andMobileHCI 2012which was sponsored by SIGCHI held in San Francisco, USA. History The MobileHCI series started in 1998 as a stand-alone Workshop on Human Computer Interaction with Mobile Devices organized by Chris Johnson and held at the University of Glasgow. In the following year the workshop was held in conjunction with the Interact conference and was organized by Stephen Brewster and Mark Dunlop. In 2001 MobileHCI was again organized by Brewster and Dunlop in association with a major co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrew Sears
Andrew Sears is an American computer scientist. He is a professor and dean of the College of Information Sciences and Technology (IST) at The Pennsylvania State University. His research explores issues related to human-computer interaction including mobile computing, speech recognition, information technology accessibility, and situationally-induced impairments and disabilities. He earned his B.S. in Computer Science from Rensselaer Polytechnic Institute and his Ph.D. from the University of Maryland Department of Computer Science in College Park. His expert opinion on information technology and IT workforce issues have been reported by a variety of media sources. Biography Sears was born in Newton, Massachusetts, and attended Natick High School located in Natick, Massachusetts. He pursued undergraduate studies at Rensselaer Polytechnic Institute, graduating in 1988 with a BS in Computer Science. Subsequently, Sears pursued graduate studies at the University of Maryland, Colle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
