First Edition Dated September, 2000 21
Project Documentation
The supplier should record all relevant information regarding improvement
opportunities and activities undertaken.
To help increase the probability of project success, every improvement team
should follow a standard process such as is found in figures 2.2 and 2.3 and
avoid firefighting and ad hoc problem solving. In addition, a standard format
for management review should also be followed (see Section 7).
6.3 Key Characteristic Statistical Control
Section 4.2 Key Characteristic Process Control
Planning
Section 4.2.1 AQS Control Plans, or equivalent, shall be
developed when any of the following occur:
(1) Boeing defines a key characteristic or a key process
parameter.
(2) Analysis performed in 4.1.3 indicates that key
characteristics are required.
(3) Lower level key characteristics are required to control
variation of higher level key characteristics.
Definitions:
Key characteristics are attributes or features (dimensions, specifications)
of a material, part, assembly, installation, or system whose variation has a
significant influence on fit, performance, service life or manufacturability.
A key process parameter is a process input that is controllable and that
has a high statistical correlation with the variation in a key characteristic.
Key characteristics are not just features that are important. They are features
where variation is hurtful or costly.
Key characteristics and key process parameters apply to business processes
as well as manufacturing processes.
For a further description of key characteristics and associated methods for
identifying key characteristics, see the Key Characteristics section of D1-
9000-1.
