Process Capability Database Usage In Industry: Myth vs. Reality
Name
CP_99-tata.pdf
Size
99.09 KB
Format
Adobe PDF
Checksum (MD5)
33f53608a76d8d45763cbcb23017aa53
Author(s)
Tata, Melissa M.
Thornton, Anna C.
Date Issued
1999
Abstract
Process capability data (PCD) is needed for robust design, optimal tolerance allocation, and variation
simulation analysis. Process capability databases (PCDBs) have been developed in many industries and are
being used by the manufacturing community to monitor quality; however, they are not being effectively
utilized by design. When the PCDBs1 were developed, the intent was for design to use PCD for
optimization and product cost minimization, but this ideal situation has not been realized.
A survey of a variety of design and manufacturing companies was circulated to determine both the state-ofthe-
art in PCDBs and the barriers preventing design from fully utilizing PCD. Two key barriers were
identified for internal PCDBs: lack of a company-wide vision for PCD usage and poor communication
between manufacturing and design. Supplier PCDBs have the additional barriers of lack of trust between
suppliers and customers and time lag for data entry. Management support, training, database population,
and common systems were identified as potential solutions to the identified barriers.
Subjects
process capability data (PCD)
process capability databases (PCDBs)
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