Process control methodologies are to be used in the planning,
implementation and evaluation of the manufacturing
processes used to produce soldered electrical and electronic
assemblies. The philosophy, implementation strategies,
tools and techniques may be applied in different
sequences depending on the specific company, operation,
or variable under consideration to relate process control and
capability to end product requirements. The manufacturer
needs to maintain objective evidence of a current process
control/continuous improvement plan that is available for
review.
1.4.3.5