Application of the most popular usability engineer

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The application of usability engineering in product development

since the late 1980s, Microsoft, IBM, apple and other enterprises have set up usability research departments and usability laboratories to provide services for their products, so that products can truly achieve people-centered design. The simple and easy-to-use interface of Microsoft products has been tested and redesigned countless times

in product design, it is very urgent to understand people's cognitive habits, respect users' habits and experience, and achieve people-centered design, especially in today's fierce market competition. Usability engineering provides the knowledge rule of this aspect

discipline foundation

usability engineering is a new frontier specialty with the development of Computer Science in the mid-1980s. It brings together the relevant theories and research methods of human factors engineering, cognitive psychology, design, software engineering, pedagogy and social psychology, and provides user interface design services for software, networking and other consumer products. Usability engineering mainly guides the interface design of products from the aspects of human cognition and experience, so as to achieve the purpose of easy to use and happy to use

usability engineering plays an extremely important role in the development process of the project. Through composite research methods and technologies, empirical research and objective quantitative analysis are carried out to provide feasibility data for product development in the early stage of the project, as well as interface design scheme and testing technology. The application of usability engineering in the project can reduce the development cost by 30%

application in enterprises

usability is a discipline closely related to enterprise project development. Since the late 1980s, world-renowned large enterprises, such as Microsoft, IBM, apple, general electric, Siemens, have set up usability research departments and usability laboratories to provide services for their products, so that products can truly achieve people-centered design, and achieved remarkable results. The simple and easy-to-use interface of Microsoft products has been tested and redesigned countless times. In addition, the research and application of this discipline have been rapidly promoted in the fields of civil consumer goods, such as software, networking products, and household appliances

the development of usability engineering in China began in 2000. Siemens (China) Co., Ltd. first established the first usability laboratory in China; Microsoft Research Asia, Nokia and other foreign-funded enterprises have also established usability research institutions, trying to make the products conform to the cultural background and usage habits of local users. Among Chinese enterprises, Lenovo Research Institute established a user research center and a usability laboratory in early 2002. At the beginning of this year, Haier company and Beijing Yisa interface design company established a joint usability laboratory in Qingdao Haier Industrial Park to provide Haier products with services such as user demand analysis, user interface design and usability evaluation in domestic and foreign markets

concept and method

after the product has crossed the threshold of quality, the needs of users begin to change, and there is a demand for product modeling design and interface design. Simple use and pleasant use have become important factors for users to buy products. The credits of usability engineering are divided into three parts: user research, interface design and usability testing

· user research. In the early stage of new product development, user research is needed to understand the psychological characteristics of this target group and their aesthetics, fashion, tasks, etc., so as to carry out targeted modeling design, structural design, interaction design and visual design. The design participated by users can ensure that the products fully meet the real needs of users. User research includes: definition of target groups; Establish user psychological model; User demand analysis; Analysis of working environment; Task/workflow analysis

the focus group research method is often used in user research. Five to seven user representatives, under the guidance of a professional host, have an in-depth discussion on a topic or concept in an unstructured or semi-structured form, so as to obtain creative opinions on some related issues. Focus groups are usually used to define the function, workflow, mining requirements, sorting out the structure, prototype acceptance test of products, etc

· user interface design. Interface design is a complex project involving different disciplines, where design, psychology and Linguistics all play an important role. The three principles of user interface design are: put the interface under the control of users; Reduce the memory burden of users; Maintain the consistency of the interface. User interface design is divided into four parts: structure design, interaction design, visual design and help system design

structure design, also known as conceptual design, is the skeleton of interface design. Through user research and task analysis, formulate the overall structure of the product. The paper-based low fidelity prototype can provide user testing and improvement. In the structure design, the logical classification and word definition of the directory system is an important premise for users to understand and operate easily. The purpose of interactive design is to make the product easy for users to use. The realization of any product function is achieved through the interaction between human and machine. Therefore, human factors should be embodied as the core of design. Visual design refers to the psychological model and task achievement of the target group for visual design, including color, font, page, etc. Visual design should achieve the purpose of user pleasure. User help system refers to paper-based and electronic product descriptions and user manuals. In the case of imperfect usability of products, user help system is very important. The help system designed according to cognitive psychology and pedagogy theory can help users learn to use products as soon as possible and solve the problems they encounter

· usability test. Usability testing is a product prototype testing method based on cognitive psychology theory to establish a high-definition component KUKA articulated arm robot and an integrated infrared heating furnace, including functional testing and medical modeling. In the simulated experimental environment, users or potential users are invited to the usability laboratory to operate every step of the product function according to the script design. Participants were asked to think aloud during the test and express their real psychological feelings due to their uniform hierarchical structure. A large number of case studies have proved that through observation and communication of these basic psychological methods, with the help of well-trained professionals and advanced test equipment and test methods, the test of 5 to 6 people can find out 80% of the products that need to be improved

with the help of laboratory video equipment and test records, testers can analyze and summarize the service performance of products in detail. As a result of the test, the product developer can get a detailed report

development trend

with the increasingly fierce market competition, users are more and more picky about the choice of products. It is difficult for us to say whether the quality of similar products in the market is higher or lower; Price war can only be a double-edged sword; And the technology gap between enterprises is becoming smaller and smaller. Facing this situation, enterprises urgently need to study users, develop new product forms or improve product functions

in China, synchronous counter circuits should be adopted to eliminate burrs. It will still take quite a long time for the concept of usability to be recognized and accepted by the business community. Many enterprises still follow the old product development model, but as an important market competition weight, it is a general trend to introduce the concept of usability engineering in the product development stage

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