Abstract
Advances in usability and design techniques (e.g. user-centered design) try to facilitate the use of interactive systems. However, users still have to adapt to interactive systems, i.e. they have to learn the steps required to accomplish a task either by trial and error or by obtaining help. While advanced users are usually able to adapt without much effort this is far from being the case with beginners. Some interactive systems offer different interaction styles in an attempt to meet the needs of all types of user but this is not the case with all interactive systems. In this sense, we present an approach to support the use of any interactive system making use of enriched models and picture-driven computing to achieve tasks automation. The USS tool (User Support System) is the basis to the adaptation of interactive systems accordingly to the users' needs. The approach provides the foundation for the addition of help (based on demonstration) to any graphical user interfaces (GUI) facilitating learning and use. The work is illustrated by a case study and completed with a preliminary user evaluation which provides insights about the validity of the approach.
Highlights
The concept of interactivity is recent, it comes from physics and have been incorporated by other fields of knowledge
The work presented in this paper aims to provide the basis for an innovative method for users to interact with any developed interactive system, independently of the Operating System and without requiring access to the application source code
This paper presents USS, a tool that provides the basis for improving user interaction with graphical user interfaces (GUI), solving several usability and efficiency problems via task automation, enriched task models and picture-driven computing
Summary
The concept of interactivity is recent, it comes from physics and have been incorporated by other fields of knowledge. Users find themselves forced to adapt to different systems in order to meet their needs They have to search for information (help manuals) or use the method of trial and error to learn how to interact with the system or to know what steps must follow to complete a given task. The approach is based on enriched tasks models and picture-driven computing and aims to solve usability problems and improve efficiency while interacting with GUIs (using automated tasks) At this point, due to the interest in knowing the behavior of the interactive systems, task models, identifying the interaction between the user and the system, represent an ideal starting point to achieve the goal of this project. This paper presents USS, a tool that provides the basis for improving user interaction with GUIs, solving several usability and efficiency problems via task automation, enriched task models and picture-driven computing.
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