Research On Usability Evaluation Scale Design Of Interactive System For Children

With the widespread popularity of the Internet,children have gradually become important consumers in the software market.Although the software market for children is booming,the explosion in software has been accompanied by uneven quality.Usability as an important indicator of software quality evaluation can improve the user experience of software interaction.However,the standardized usability evaluation scales used to evaluate software or systems have not proven to be suitable for children.And the research on children's software usability evaluation scale cannot prove that children can evaluation software independently.And some research lacks the reliability and validity evaluation of the scale and lacks the calculation method of the scale score.Therefore,in order to solve the problems,the design and evaluation of software usability evaluation scale for children are of great value.This paper is based on usability indicators,combined with children's cognitive psychology,and carries out the research of the software usability evaluation scale for children and complete the usability evaluation and design iteration of "Letong Paper-cut".The main research contents include:Firstly,referring to relevant literature,the current usability indicators are sorted out and the characteristics of children's cognitive psychology are analyzed.Secondly,the first version of the children's usability evaluation scale is designed through field research of children's cognitive ability,expert screening of usability indicators and questionnaire survey of children's understanding degree.Then,the final scale is designed through scale evaluation experiment and the application of analytic hierarchy process and fuzzy comprehensive evaluation method.Thirdly,we conduct usability evaluation experiment on the "Letong Papercut" to collect usability problems.Then,we design and evaluate contrast design scheme for usability problems and propose the second edition of " Letong Papercut".Finally,the two versions of "Letong Paper-cut" are compared and evaluated with the scale to verify the rationality of design of the second version of " Letong Papercut " and prove that the scale provides guidance for software usability evaluation for children.