Resumo:
Lean Manufacturing, an approach that emerged in Japan as a Toyota Production System, seeks
to increase productivity and quality, while reducing waste, and is being increasingly applied in
administrative environments. However, this application still faces difficulties, either due to its
limited knowledge, or due to the difficulty in visualizing the expected results. In order to
minimize these difficulties and increase the chances of success in the implementation, an
increasingly used technique is computer simulation, since the expected results for the real
system can be previously visualized in the virtual system. In this context, the general objective
of this work is to employ the Modeling and Simulation method, through the Discrete Events
Simulation (DES) in the evaluation of the results expected by the proposal of implementing
lean thinking in the administrative environments of a Federal Institution of Higher Education
(FIHE), more precisely, in the Management of School Records of Technical Courses and High
School of IFMG, Campus Bambuí. The specific objective is to develop a Systematic Literature
Review (SLR) to understand how lean thinking has been applied in administrative
environments, particularly in those audiences, highlighting the contributions and difficulties
pointed out by the existing literature, as well as the way in which the Simulation Discrete Events
comes and can be used to leverage contributions and minimize the difficulties of implementing
these concepts in these environments. The Value Stream Mapping was integrated with the
Simulation steps, where the current and future value stream maps of the selected service
families were modeled and simulated, obtaining as a result, through the elimination of waste, a
reduction in Leads Times from the families mapped 93.5%, 47.4% and 59.6%, comparing
simulated current and future states, and 92.8%, 45.0% and 61.0%, comparing current and future
states drawn. First, such sets of values prove the significant reductions. Second, they also prove
the coherence between the drawn maps, which are static and deterministic, and the simulated
ones, which are dynamic and stochastic. With the general objective restricted to the use of
Discrete Events Simulation to evaluate in advance the results expected by the proposed
implementation of lean thinking to the object of study, the effective application of these
concepts and their tools remains a natural proposal for future work.
