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This paper proposed a kind of software requirements analysis technology method based on event-driven. In structured analysis method, system relation diagram, DFD fragments and 0-level figure are developed through the establishment of events table. Further DFD diagram decomposition is carried on to obtain the analytical model. We can divide the subsystem through events and external entities interaction,...
This paper proposes a kind of method based on the rule natural language understanding, it can carry on scientific evaluation in understanding bases of the teachers' teaching quality. First of all creates the domain library and evaluation library based on the quality of teaching evaluation system, establishes a rule for each word in domain and evaluation library. After identifies each domain and evaluation...
Based on the analysis of the traditional algorithm, this paper proposes a clipping algorithm for line segments against circular windows. Firstly divides the relationships between line segment and circle into five types and defines them. By using combination of region coding and distance square method, relationships are all determined. Which will avoid determination of intersection points between line...
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