Workflow management system is becoming a relevant support for large class of business application, and many workflow models as well as commercial products are currently available. Unified Modeling Language is an object-orient visual modeling language. It summarizes the former experiences of modeling technology and assimilates the excellent researching achievements in nowadays. The programmer can establish business model quickly by using Rational Rose. UML provides some feasible standard methods for software development. This thesis introduces the sanitation test management business, explains the architecture of Laboratory Information Management System in detail and especially the workflow technique using in it.
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