Melhoria na qualidade de dados com a aplica??o de 'data cleaning' na base de dados de acidentes aeronáuticos da avia??o civil brasileira

摘要

Introduction: It shows the application of techniques of data cleaning in the aeronautical accidents of brazilian civil aviation with the aim of measuring the degree of improvement in the quality of the data. Method: Initially, there was a literature review on the concepts of data cleaning and data quality, and then applied the techniques of data cleaning in a database composed of 4601 records, relating to aviation accidents that occurred between the years of 1979 and 2014 in brazilian civil aviation. The measurement of the improvement in the quality of the data was performed using the metric "percent of improvement of data". Results: Observing the general context all the attributes of the database there was a 9% improvement on the quality of the data, with attributes, such as weight, manufacturer and model of the aircraft, which had a degree of improvement over 55% after application of the methodology. Conclusion: The data cleaning technique can be used to define policies for continuous improvement in data bases and improve decision-making processes in organizations that deal with aviation, particularly in the area of flight safety.