Defects

• Types of Defects

  • Measurability
  • Seriousness or Gravity
  • Nature
• Measurability Defect:

  • Variable Defect
  • Attribute Defect
• Seriousness or Gravity Defect:

  • Critical Defect
  • Major Defect
  • Minor Defect
• Nature Defect:

  • Ocular Defect
  • Internal Defect
  • Performance Defect
• can be measured directly by instruments


  Variable defect
• cannot be measured directly by instruments


  Attributive defect
• shows mainly conformance and nonconformance

  Attributive defect
• a defect which may endanger life or property and may render the product useless or non-functional


  Critical defect
• may affect the function of the object and may render the product useless

  Major defect
• does not endanger life or property and will not affect the function but still a defect since it is outside the prescribed limit

  Minor defect
• defect that is visible


  Ocular defect
• not seen although present


  Internal defect
• a defect in function

  Performance defect