Technical Niches Glossary
PRR: (Problem Reporting & Resolution): A formal process initiated
after non-conforming parts are discovered at the automotive assembly plants that includes
a formal report detailing the problem and its resolution.
GD&T: Geometric Dimensioning & Tolerancing: A method
of insuring that the dimensions and tolerances for different parts are coordinated, so
as to insure that multiple parts always fit together properly.
Quality/Supplier Development Engineer: A Quality Engineer that
focuses on the initial Quality problems of a new supplier.
OE, also OEM: Original Equipment Manufacturer: The manufacturer
of original automobiles/trucks (examples: Ford, Gm, etc.) or the parts made for these vehicles.
This is contrasted with parts made for service/repairs that are sold to garages or Service
Parts companies (NAPA, Autozone, etc.), or with parts that are repaired or rebuilt (remanufactured).
Remanufactured: OEM parts that are repaired or rebuilt and then
used again. Examples include Alternators/Generators, Engines and other parts.
Class 8/Off Road: These are vehicles other than passenger vehicles
or pickup trucks, such as Delivery Trucks, Fire Engines, Construction Equipment, etc.
Lighting: Forward: Headlamps (high & low beam), turn
signals, and other lights on the front of a vehicle.
Lighting: Signal: Lighting on the rear of a vehicle, such as
turn signals, stop lights, back-up lights, etc.
AIAG Term Descriptions
Production Part Approval Process (PPAP) Defines the generic requirements for production
part approval including product and bulk materials, and is based on approval of specific
quantities of production parts or production materials taken from the significant production
run made with production tooling, processes, and cycle times.
Run @ Rate (GP-9) - Verifies that a supplier's actual manufacturing
process, while operating under normal operating conditions, and under Total Customer Requirements
is capable of producing Quality components at or exceeding the daily contracted capacity
on a sustained basis.
Early Production Containment (GP-12)
Documents the suppliers process control efforts during startup and acceleration, insures
that quality issues are identified, addressed and corrected in the supplier's house, and
increases involvement and visibility of top management.
Problem Reporting & Resolution (PRR)
Relocations - Third Party Tool Move Coordinator (TMC) - Helps
facilitate supplier through tool move process by monitoring tool move progress, coordinating
communication to and from customer, monitoring engineering change implementation, assures
engineering validations are progressing satisfactorily, and aids in resolution of issues
or creation of implementation plans.
Engineering Support - Design of Experiments (DOE) - This is a
test or sequence of tests where potential influential process variables are systematically
changed according to a prescribed design matrix.
Failure Mode and Effects Analysis (FMEA) - This is a disciplined
review and analysis of a new or revised process and is conducted to anticipate, resolve,
or monitor potential process problems for the specific new or revised product program under
Gage Repeatability and Reproducibility (Gage R&R) - The combined
estimate of measurement system repeatability and reproducibility, assesses measurement
system capability depending on the method used and may or may not include the effects of
Geometric Dimensioning and Tolerancing (GD&T) The word Geometry
(-ic forms the adjective of Geometry) deals with the shapes of objects and methods of describing
and measuring them, and comes to us from the Greek words of "Geo" - land + "Metron"
- to measure, who evidently developed Geometry as a means of measuring land. One of the
ways of measuring something is the use of dimensions, which comes from the Latin word "dimetiri"
- to measure carefully. Since all dimensions can vary even slightly in size, even in a
bin of the "same" parts, there is a need to control the maximum and minimum limits
for dimensions, to ensure their proper fit and function. The control of these limits is
called the tolerancing of the dimension. The science or system of controlling dimensions
and establishing the proper tolerances for the dimensions for one or more parts is called
"Geometric Dimensioning and Tolerancing", or GD&T.