Mobile Environment Based On Task Decomposition Research And Implementation Of Information Management Of Metaphor

Metaphor, as a method of parable, explains the unfamiliar phenomenon to people through their existing knowledge, and it makes new things be easily understood and efficiently operated by users. As the ubiquitous computing technology and wireless mobile communication technology has penetrated into our daily lives, mobile devices became a necessity of life and generate a large amount of information. Most of those information are non-linear and unstructured. The traditional metaphor of information management in desktop obviously does not meet the needs of users because It’s process is linear. So It is out of season to transplant the traditional metaphor in desktop to mobile device. New metaphors need to be proposed to guide the management of user information in the mobile environment. In this thesis, we introduced the study of metaphor at first. Next, we analyze mobile environments and cognitive features of user. Then, we designed a new metaphor of information management which is based on the decomposition of the task。 On these foundations, this paper developed an interactive mobile diary to demonstrate how the metaphor’s rationality and effectiveness.In the part of metaphor research:firstly, we introduce the concepts and the mode of action of metaphor. Secondly, we introduce the relationship between the metaphor and interaction design, and we also introduce the classification of metaphor in interaction design, including conventional metaphor and creative metaphor. Thirdly, we discuss the function of metaphor in interaction design. At last, the thesis expound the three-step design method we have proposed.In the part of metaphor design, we analyze the metaphor of information management which from desktop, and point out the existing problem of the metaphor. And then, we analyze the user’s environment, the user platform and the cognitive features of user in order to instruct the design of the new metaphor of information management which is based on the decomposition of the task is designed. At last, we introduce the visual representation, including background designing, functional elements designing, icon designing and interaction effect designing.In system implementation part, In order to test and verify the rationality of the metaphor we design, we developed the prototype of Interactive mobile dairy according to the metaphor we designed, and then we evaluated the system. In the process of the development system, we introduce the system requirements according to the design objectives we proposed, the system requirements include two parts, scene analysis and use case analysis. Next, we introduce the framework, interface and the class diagram of the system. In the part of the system evaluation, we evaluate the system in two ways:quantitative and qualitative.