||NAVSO P-3687: Producibility System Guidelines
The Producibility Engineering Top Ten
Producibility engineering analyses apply the following
steps, which are augmented by KPAT as shown in Figure E.14.
- Establish baseline configuration of the product (usually done by systems
- Review the predecessor, comparable item work orders, and manufacturing
planning data, or results of experiments for technical difficulty or lessons
- Review statistical producibility drivers using Pareto techniques;
identify drivers using the P = F (f,d,c) parameters.
- Interview manufacturing shops, assembly areas, and flight test with
specific questions related to discoveries from tasks 2 and 3.
- Develop detailed lessons learned from steps 3 and 4 and study their
- Integrate technical data, statistics, and interviews; develop initial
PDTRs linked to the P function (presented in Figure E.14).
- Optimize PDTRs with respect to production, schedule, Affordable
Readiness criteria, and technological opportunities by conducting trade
studies. Discuss with design team members and supportability engineer.
- Finalize PDTRs; convert to spec language but allow freedom of design.
- Update or negotiate PDTRs with systems engineers and designers.
- Incorporate PDTRs in the system spec or ECP via the Technical Data
Package (TDP). This is the final step in the PDTR development
Figure E.14 - KPAT Augments
Producibility Design Analysis
(click image to enlarge)
As an example, to achieve an integrated, balanced design for
producibility, the use of trade study models provides the desired
optimization based on producibility objectives. A similar approach is taken
by supportability engineering in that each "ility" such as reliability,
maintainability, packaging, and transportation is optimally represented by
integrated Supportability Design-To Requirements (SDTRs). The results of
this first level requirements optimization are further integrated by systems
engineering with other key aspects of the design, such as survivability,
lethality, life-cycle costing, and performance, to ensure top level
New technology introduction also needs to be viewed from a producibility
engineering perspective. It is therefore essential that producibility
engineers participate in the technology development so that once the
technology has evolved, it can also be produced economically. Technology
development provides an opportunity for producibility influence, as shown in
Figure E.15. When the technology is embryonic, technology experiments are
observed with respect to selected criteria such as failures/successes, and
PDTRs are generated to integrate producibility considerations. A detailed
producibility analysis is conducted which addresses a variety of
considerations for the PDTRs. Once the manufacturing support event criteria
(f,d,c) appear to be successfully implemented, then the technology is deemed
feasible for product development. During the transition to actual
manufacture there will be additional opportunities for PDTR development. If
the initial PDTR process was sufficiently rigorous, the manufacturing
aspects of that technology should be negligible.
Figure E.15 - Concurrent Engineering