Estimating Technology Readiness Level Coefficients

The Relationship of Technology and Design Maturity to DoD Weapon System Cost Change and Schedule Change During Engineering and Manufacturing Development,

“…However, using TRLs as an independent variable for parametric models that calculate cost change or schedule change potentially violates mathematical principles because the TRL and similar scale coefficients are ordinal, not cardinal in nature. Conrow [] argues that mathematical operations performed on ordinal coefficients (like the nine integer TRL values) can lead to systematic errors. Conrow [] proposes a calibration of the TRL scale based on an analytic hierarchical process that results in estimated cardinal values assigned to each TRL scale level, allowing for mathematical analysis using TRLs as an independent variable.…”

“…Conrow [] argues that mathematical operations performed on ordinal coefficients (like the nine integer TRL values) can lead to systematic errors. Conrow [] proposes a calibration of the TRL scale based on an analytic hierarchical process that results in estimated cardinal values assigned to each TRL scale level, allowing for mathematical analysis using TRLs as an independent variable. Note that each of the TRL‐based parametric models mentioned above did not include estimated cardinal coefficients, but rather the raw, ordinal TRL values.…”

Marine Environmental Impact of Hydrokinetic Energy

“…TRL possesses nine levels, with each of which is associated an integer that signifies in ascending order the progress of a technology in accordance with the following order The success of TRL in practice has been demonstrated for several decades in various areas; furthermore, it has been extended in several directions with a view to increasing its applicability through a more sophisticated quantification of its metrics; e.g. [9][10][11]. However, to the authors´ knowledge, there does not appear to be any work reported in the literature on the incorporation of environmental considerations within the TRL framework.…”

Modelo para o desenvolvimento conceitual de produtos de tecnologia assistiva para o setor de transporte aéreo.

“…O TRL (Technology Readiness Level, ou Nível de Maturidade Tecnológica em português) é um sistema de medição sistemático criado para avaliar o grau de maturidade de novas tecnologias no desenvolvimento de sistemas complexos e permite uma comparação consistente entre tipos diferentes de tecnologia (CONROW, 2011;MANKINS, 1995MANKINS, , 2009NASA, 2007;SHISHKO;ASTER, 1995).…”

“…Criado pela NASA na década de 1970, o TRL passou a ser utilizado também pelo Departamento de Defesa dos EUA na década de 1980, e se difundiu na indústria a partir da década de 1990, sendo atualmente utilizado em diversos tipos de indústrias que não apenas a aeroespacial (CONROW, 2011).…”