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The most important thing is that designers and users must work closely together; repeated changes to the user’s requirements also result in a waste of human and resource efforts, affecting the quality of the design. Changhui Instrument Network shares in this article standardized methods for human-machine interface design and evaluation criteria for reference by engineers. Human-computer interface design: yunrun.com.cn/tech/2747.html. The standardized method for human-computer interface design consists of three parts, as shown in the figure below. http://yunrun.com.cn/upload/201910/19/201910192312356551.png 1. Initial design phase: Provides the information needed by interface designers, as well as the preliminary considerations for the design. Finally, a global relationship diagram and a management hierarchy diagram are obtained, which include: ① Design objectives – The user specifies the design requirements, and the designers consider them thoroughly and offer suggestions to the user in order to arrive at appropriate design objectives. Different users have different requirements, and this is an important reason why human-computer interface design cannot be standardized entirely. ②After the objectives are defined, designers work closely with users to thoroughly investigate the actual conditions, so as to optimize the functions required for those objectives, the ways in which I/O is handled, and the descriptions of various control structures. ③Data format considerations: The determination of the data structure forms the basis for the entire human-computer interface design. Its determination should be agreed upon jointly by the user and the designer; the usual data format in use can serve as a basis, with consideration given to future needs and computer requirements to arrive at the final decision. ④Design guidance: Describes and considers the hardware and software requirements during the design process, and discusses the desired operating environment. This helps avoid unnecessary detours and improves the quality of human-computer interface design. ⑤Structured global consideration involves establishing relationships between the functional modules to be considered and the data files, in order to create a global structure for the human-computer interface design. This enables designers to take a holistic approach, and it also facilitates users in submitting new suggestions. 2. Mature design phase: The results from the initial design phase are subjected to detailed technical processing, which enables the preliminary completion of the human-machine interface design. This includes: ① Detailed technical processing, where various functional components are further refined and technically evaluated. Unworkable designs should be eliminated at this stage to reduce potential design redundancy. ②The interface design is complete, and the functional aspects have been technically refined to be implementable. The main task in this step is to complete the screen design for user interaction with the computer, thereby linking all elements together to form a complete human-computer interface design. ③Users who undergo testing on the completed human-machine interface design must understand it thoroughly and decide whether to accept this solution. Designers must give careful consideration to the suggestions from users. 3. Summary and evaluation phase: The results from the previous stage are evaluated jointly by users and technical personnel in order to identify issues for further improvement; finally, these findings are codified. This includes: ① Overall evaluation – Users and technical personnel form an evaluation team to assess the user interface with the aim of making further improvements. For designers, the evaluation of human-computer interface design must begin from the initial stage of design; the earlier such evaluation is carried out, the more beneficial it is for the design. Here, only a general assessment of the human-computer interface design is provided. Evaluation criteria for human-computer interface design 1) Whether the purpose of the human-computer interface design has been achieved ; 2) Are the functions and facilities adequately equipped? ; 3) Can it guide the user on the next steps? ; 4) Is it transparent to users? ; 5) Is it easy to use? ; 6) Is it easy to learn*how to use it? ; 7) Are the prompts to users friendly? ; 8) Does it have intelligence? ; 9) Is the design clear? ; 10) Are the limitations in terms of information space, time, and devices acceptable? ; 11) Are the information legal, reliable, and available? ; 12) Is the quality of information display high? ; 13) The storage structure of information is reasonably sound ; 14) Is the response time for human-computer conversations appropriate? ; 15) Misconception about whether the function is intact ; 16) Are the different needs of various users met? ; 17) Are the assistance facilities easy to use? ; 18) Is the human-machine interface reliable and stable? The amount of work required for modification is too great; the original structure must be overturned and redesigned. Designers avoid excessive workload and waste, and can only ignore some errors in order to ensure that the user interface is functional. As a result, the quality of the user interface that the user ends up with is poor. ②Coding experiment: Transforming the human-computer interface design into a runnable computer code program for users to try out. Continuously identify problems during the trial period and make corrections. The standardized human-computer interface design method provides a path for human-computer interface design, and adopting such a standardized approach yields high efficiency.
The human factors aspect of automation in the process industry still lags far behind that of industries such as arms manufacturing, vehicle production, and aviation, where more effort has been put into cabin design. Quantitative objective evaluation methods are still rarely used; subjective evaluation remains the norm.