The Quantity Tools of quality

The Quantity Tools of quality

1. Control chart

   • Statistical tool that detects if a variable is in control
     • Por Variables
       • Se pueden identificar las causas de un cambio de una característica de calidad.
     • Por atributos
       • Identifies whether a variable is acceptable or not acceptable.

2. Histogram

   • Distribution graph that evaluates the dataset, the frequencies of some classes, bar graphs
     • Works for
       • Less important data
       • Data with more attributes
       • Sub sets of data are formed

3. Pareto chart

   • Statistical diagram that examines processes and variables, to eliminate up to 80% of the cause, setting priorities.
     • Works for
       • Set Attributes
       • Identifies improvement products
       • Main Causes

4. Dispersion diagram

   • It is a tool that helps to describe the behavior and the relationship of two variables by a point suctioning defined on an x-axis and Y-axis,
     • Solucion de problemas de calidad que identifica las causas que influyen la dispercion.