IT’S ALL ABOUT GOOD PRODUCT
PFC Zachary Buckalew, left, and PFC Michael Hurley, both assigned to the 5th Squadron, 1st Cavalry Regiment, 1st Stryker Brigade Combat Team, U.S. Army Alaska, fire a 120 mm mortar Aug. 21, 2014, during Red Flag – Alaska 14-3, a joint exercise with Air National Guard joint terminal attack controllers at Yukon Training Area, AK. KPD&M can significantly improve an ammunition item’s quality, reliability, durability, producibility and cost-effectiveness, while lowering inspection, quality management and manufacturing costs. (U.S. Air Force photo by 2nd Lt Michael Harrington)
malfunction investigations even though the product met TDP requirements.
WHY KPD&M? KPD&M can significantly improve an item’s quality, reliability, durability, producibility and cost-effectiveness, while lowering inspection, quality management and manufacturing costs. Te process is a means to completely understand how the TDP tol- erances relate to performance variability, and to make the item work in uncontrollable conditions. Tus KPD&M provides objective, measurable evidence that the product is safe, reliable, robust and operationally effective.
KPD&M can be applied to any phase of the life cycle. It may also be applied effectively to legacy systems that have been in production for many years.
• Phase one establishes the infrastructure for KPD&M deployment and thorough understanding of the system, subsystem and subassembly and component requirements. Accomplishing this calls for the use of tools such as quality function deployment and new, unique and difficult analysis to prioritize requirements.
• Phase two establishes hypotheses for what design features influence the product’s performance under uncontrollable
conditions. A series of systems engineering tools—such as functional flow models, boundary diagrams, input-output- constraint diagrams, parameter diagrams and first principle models—establish key relationships.
• Phase three tests phase two’s hypotheses and determines what
features influence the product’s performance under
uncontrollable conditions. Te team accomplishes this by developing and executing sequential experiments to identify what features influence the product’s performance (mean and variance) under controlled conditions, what uncontrolled conditions influence performance, and what features interact with uncontrolled conditions. Tis information identifies the design key parameters.
• Phase four establishes tolerance limits for the key param- eters and for those characteristics that did not have a major influence on performance; these features have the poten- tial to save a lot of money. Te goal is to identify how these features’ variations influence product performance by per- forming probabilistic analysis with the empirical models developed in phase three, or by performing a tolerance design of experiment.
• Phase five develops a process control plan for the key param- eters by implementing the Process Capability, Control and Improvement Clause. Tis phase identifies what process parameters influence the specified design key parameters
ASC.ARMY.MIL 39
ACQUISITION
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