BS ISO 11462-1:2001

Foreword 000
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 SPC applications
  4.1 Process characteristics
  4.2 Production characteristics
  4.3 Techniques for control and models of processes
5 SPC objectives and organization
  5.1 SPC objectives
  5.2 Financial motive for SPC
  5.3 Relationships
  5.4 SPC organization
6 Conditions for statistical process control
  6.1 Management support
  6.2 Understanding of SPC tools and methods
  6.3 Quality management system
7 Elements of a statistical process control system
  7.1 Process documentation and control plan
  7.2 Definition of process targets and limits 0022
  7.3 Measurement system evaluation and control
  7.4 Documented work instructions
  7.5 Employee training and involvement in process data
  7.6 Process data recording and collection
  7.7 Traceability and production sequence identification
  7.8 Subcontractor performance evaluation
  7.9 Process input sequencing
  7.10 Process logs
  7.11 Process reliability
  7.12 Process output monitoring system
  7.13 Process control system
  7.14 Short-term variability assessment
  7.15 Long-term variability assessment
  7.16 Communicating the results of process analyses
  7.17 Customer information system
  7.18 Internal SPC audits
  7.19 SPC projects and teams
  7.20 Process improvement, optimization and troubleshooting
Annex A (normative) Terms and definitions
Bibliography

Statistical Process Control (SPC) concerns the use 000 of statistical techniques and/or statistical or stochastic control algorithms to achieve one or more objectives like to increase knowledge about a process, to steer a process to behave in the desired way and to reduce variation of final-product parameters, or in other ways improve performance of a process.

Statistical process control (SPC) concerns the use of statistical techniques and/or statistical or stochastic control algorithms to achieve one or more of the following objectives: to increase knowledge about a process; to steer a process to behave in the desired way; to reduce variation of final-product parameters, or in other ways improve performance of a process. These guidelines give the elements for implementing an SPC system to achieve these objectives. The common economic objective of statistical process control is to increase good process outputs produced for a given amount of resource inputs. NOTE1 SPC operates most efficiently by controlling variation of a process parameter or an in-process product parameter that is correlated with a final-product parameter; and/or by increasing the process’s robustness against this variation. A supplier’s final-product parameter may be a process parameter to the next downstream supplier’s process. NOTE2 Although SPC is concerned with manufactured goods, it is also applicable to processes producing services or transactions (for example, those involving data, communications, software, or movement of materials). This part of ISO11462 specifies SPC system guidelines for use when a supplier\'s capability to reduce variation in processes associated with design or production needs to be proven or improved; or when a supplier is beginning SPC implementation to achieve such capability. These guidelines are not intended for contractual, regulatory or certification use.