User interface design Wikipedia. The graphical user interface is presented displayed on the computer screen. It is the result of processed user input and usually the primary interface for human machine interaction. The touch user interfaces popular on small mobile devices are an overlay of the visual output to the visual input. User interface design UI or user interface engineering is the design of user interfaces for machines and software, such as computers, home appliances, mobile devices, and other electronic devices, with the focus on maximizing usability and the user experience. The goal of user interface design is to make the users interaction as simple and efficient as possible, in terms of accomplishing user goals user centered design. Good user interface design facilitates finishing the task at hand without drawing unnecessary attention to itself. Make a Difference. 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Graphic design and typography are utilized to support its usability, influencing how the user performs certain interactions and improving the aesthetic appeal of the design design aesthetics may enhance or detract from the ability of users to use the functions of the interface. 1 The design process must balance technical functionality and visual elements e. Interface design is involved in a wide range of projects from computer systems, to cars, to commercial planes all of these projects involve much of the same basic human interactions yet also require some unique skills and knowledge. As a result, designers tend to specialize in certain types of projects and have skills centered on their expertise, whether that be software design, user research, web design, or industrial design. Processesedit. Template for mobile and desktop app design. User interface design requires a good understanding of user needs. There are several phases and processes in the user interface design, some of which are more demanded upon than others, depending on the project. 2 Note for the remainder of this section, the word system is used to denote any project whether it is a website, application, or device. Functionality requirements gathering assembling a list of the functionality required by the system to accomplish the goals of the project and the potential needs of the users. User and task analysis a form of field research, its the analysis of the potential users of the system by studying how they perform the tasks that the design must support, and conducting interviews to elucidate their goals. 3 Typical questions involve. What would the user want the system to do How would the system fit in with the users normal workflow or daily activitiesUser interface design UI or user interface engineering is the design of user interfaces for machines and software, such as computers, home appliances, mobile. Design for manufacturability also sometimes known as design for manufacturing or DFM is the general engineering practice of designing products in such a way that. How technically savvy is the user and what similar systems does the user already use What interface look feel styles appeal to the user Information architecture development of the process andor information flow of the system i. Prototyping development of wire frames, either in the form of paper prototypes or simple interactive screens. These prototypes are stripped of all look feel elements and most content in order to concentrate on the interface. Usability inspection letting an evaluator inspect a user interface. This is generally considered to be cheaper to implement than usability testing see step below, and can be used early on in the development process since it can be used to evaluate prototypes or specifications for the system, which usually cannot be tested on users. Some common usability inspection methods include cognitive walkthrough, which focuses the simplicity to accomplish tasks with the system for new users, heuristic evaluation, in which a set of heuristics are used to identify usability problems in the UI design, and pluralistic walkthrough, in which a selected group of people step through a task scenario and discuss usability issues. Usability testing testing of the prototypes on an actual useroften using a technique called think aloud protocol where you ask the user to talk about their thoughts during the experience. User interface design testing allows the designer to understand the reception of the design from the viewers standpoint, and thus facilitates creating successful applications. Graphical user interface design actual look and feel design of the final graphical user interface GUI. It may be based on the findings developed during the user research, and refined to fix any usability problems found through the results of testing. 4Depending on the type of interface being created, this process typically involves some computer programming in order to validate forms, establish links or perform a desired action. 5Software Maintenance After the deployment of a new interface, occasional maintenance may be required to fix software bugs, change features, or completely upgrade the system. Once a decision is made to upgrade the interface, the legacy system will undergo another version of the design process, and will begin to repeat the stages of the interface life cycle. 6RequirementseditThe dynamic characteristics of a system are described in terms of the dialogue requirements contained in seven principles of part 1. ISO 9. 24. 1. This standard establishes a framework of ergonomic principles for the dialogue techniques with high level definitions and illustrative applications and examples of the principles. The principles of the dialogue represent the dynamic aspects of the interface and can be mostly regarded as the feel of the interface. The seven dialogue principles are Suitability for the task the dialogue is suitable for a task when it supports the user in the effective and efficient completion of the task. Self descriptiveness the dialogue is self descriptive when each dialogue step is immediately comprehensible through feedback from the system or is explained to the user on request. Controllability the dialogue is controllable when the user is able to initiate and control the direction and pace of the interaction until the point at which the goal has been met. Conformity with user expectations the dialogue conforms with user expectations when it is consistent and corresponds to the user characteristics, such as task knowledge, education, experience, and to commonly accepted conventions. Error tolerance the dialogue is error tolerant if despite evident errors in input, the intended result may be achieved with either no or minimal action by the user. Suitability for individualization the dialogue is capable of individualization when the interface software can be modified to suit the task needs, individual preferences, and skills of the user. Suitability for learning the dialogue is suitable for learning when it supports and guides the user in learning to use the system. The concept of usability is defined of the ISO 9. Part 1. 1 gives the following definition of usability Usability is measured by the extent to which the intended goals of use of the overall system are achieved effectiveness. The resources that have to be expended to achieve the intended goals efficiency. The extent to which the user finds the overall system acceptable satisfaction. Effectiveness, efficiency, and satisfaction can be seen as quality factors of usability. To evaluate these factors, they need to be decomposed into sub factors, and finally, into usability measures. The information presentation is described in Part 1. Digital product studio. Sign up to get fresh and regularish ustwo thinking direct to your inbox.