Abstract
This paper proposes a logical framework that visualizes worker's system awareness. Generally, this awareness is difficult to compile in a educational book, and is seldom communicated in verbally. To show broad utility of system awareness, we need to show workers' conceptual structure of system operating.
We firstly carry out a work analysis of graph drawing task using a spreadsheet software. Based on it, we propose a logical representation of worker's system awareness using Formal Concept Analysis. This representation shows the workers' implicit rules which become the selection criteria of system functions. Furthermore, concept lattices which are obtained by this analysis, show the level of worker's applied skills of knowledge about system function. Finally, we discuss hierarchy of system awareness, and propose a way to find a new system usage from worker's experiences.
