Implementation begins with a corporate commitment to producibility.
Corporate management should establish a corporate process capabilities team
with the responsibility of determining process capability. This corporate team
defines the types of process capability information necessary and ensures its
collection, documentation, and update.
In addition, corporate management should encourage the respective product
IPTs to make use of process capability information in their product and
process development. Each IPT is responsible for identifying the level of
process understanding and control required to ensure product producibility and
for making this information available to the corporate process capabilities
The incorporation of this product-specific process capability information
back into the guidelines is the responsibility of the corporate process
capabilities team. It is clear that effective coordination between the
corporate process capabilities team and the product-specific IPTs is
required.Ten general steps used in determining internal and supplier
process capabilities are:
1. Establish a corporate process capabilities team to coordinate process
capability information. Identify the process experts required.
Identify processes for which data will be collected. Identify depth of
knowledge generally required for each capability. For those process
capabilities for which the depth of knowledge required varies on a per
product basis, coordinate with product-specific IPTs.
suppliers for which capability data is required. Identify depth of knowledge
required for supplier capabilities.
4. Determine the method of
process capability documentation to be used, as well as its distribution and
access requirements. Determine documentation update procedure and update
cycle. Select documentation support tools.
5. Develop the format and
forms for data collection.
6. Collect data. If necessary, conduct
studies or analysis (such as DOE, PFMEA, prototyping, or modeling and
simulation) to more fully understand process capability. Identify optimum
processing parameters. Highlight process inconsistencies and determine their
cause. Utilize statistical analyses to assess process
7. Organize and document data in process capability
8. Integrate the use of process capability guidelines
in the company's design guidelines (1.5 ) and
engineering procedures. Educate users on capability data.
Continuously verify and monitor data (through methods such as SPC or Six
Sigma). Ensure that process capabilities do not vary over time through the
use of SPC tracking mechanisms.
10. Periodically review and update
process capability guidelines. Ensure that data being collected matches data
required. Update list of suppliers for which data is