System Readiness Level Index - Revision history

S203227: /* Limitations */

2021-02-28T22:36:45Z

Limitations

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	The limitations of the SRA are tied to the mathematical biases related to the interpretations of the procedure. Any assumptions based on tacit or biased knowledge may affect the outcome of the TRL, which in turn can change the IRL and the final SRL.		The limitations of the SRA are tied to the mathematical biases related to the interpretations of the procedure. Any assumptions based on tacit or biased knowledge may affect the outcome of the TRL, which in turn can change the IRL and the final SRL.

	By using a single integer to rate the status of a system’s development and help ensure its success, a company might be one-faceted. System readiness is a multidimensional concept that goes beyond simply assessing the achieved technology and integration status. To fully ~~characterize~~ system readiness requires looking at the multifaceted aspects of system/technology development, including the risk and effort required to reach operational readiness. System readiness is too complex to be ~~characterized~~ by a single number. The way to improve the development of technically advanced system is to develop excellent project teams and implement a comprehensive systems development process that includes a technology development plan based on a sound quantitative assessment of technical, cost, and schedule risks <ref name="six">[''https://www.researchgate.net/publication/260652369_Analysis_and_Critique_of_the_System_Readiness_Level, E. Kujawski, 2013.''] ''Analysis and Critique of the System Readiness Level'' </ref>.		By using a single integer to rate the status of a system’s development and help ensure its success, a company might be one-faceted. System readiness is a multidimensional concept that goes beyond simply assessing the achieved technology and integration status. To fully characterise system readiness requires looking at the multifaceted aspects of system/technology development, including the risk and effort required to reach operational readiness. System readiness is too complex to be characterised by a single number. The way to improve the development of technically advanced system is to develop excellent project teams and implement a comprehensive systems development process that includes a technology development plan based on a sound quantitative assessment of technical, cost, and schedule risks <ref name="six">[''https://www.researchgate.net/publication/260652369_Analysis_and_Critique_of_the_System_Readiness_Level, E. Kujawski, 2013.''] ''Analysis and Critique of the System Readiness Level'' </ref>.

	The SRL should not be used uncritically, as a project manager tool, due to the following reasons <ref name="six"/>:		The SRL should not be used uncritically, as a project manager tool, due to the following reasons <ref name="six"/>:

S203227: /* IRL */

2021-02-28T22:36:14Z

IRL

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	\|-		\|-
	\|2		\|2
	\|There is some level of specificity to ~~characterize~~ the interaction between technolgoies through their interface		\|There is some level of specificity to characterise the interaction between technolgoies through their interface
	\|-		\|-
	\|1		\|1
	\|An interface between technologies has been identified with sufficient detail to allow ~~characterization~~ of the relationship		\|An interface between technologies has been identified with sufficient detail to allow characterisation of the relationship
	\|-		\|-
	\|}		\|}

S203227: /* Perform Iterative Evaluations */

2021-02-28T22:35:32Z

Perform Iterative Evaluations

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	#'''SRL Matrix'''. In order to calculate a value of the SRL from the TRL and IRL values, an SRL matrix is generated by obtaining the product of the IRL and TRL matrices.		#'''SRL Matrix'''. In order to calculate a value of the SRL from the TRL and IRL values, an SRL matrix is generated by obtaining the product of the IRL and TRL matrices.
	#'''Component SRL'''. The corresponding ''SRL<sub>i</sub>'' for each component ''i'' is then divided by ''m<sub>i</sub>'' to obtain its ~~normalized~~ value.		#'''Component SRL'''. The corresponding ''SRL<sub>i</sub>'' for each component ''i'' is then divided by ''m<sub>i</sub>'' to obtain its normalised value.
	#'''Composite SRL'''. The Composite SRL for the system is the average of the Component SRL values, where ''n'' is the number of components.		#'''Composite SRL'''. The Composite SRL for the system is the average of the Component SRL values, where ''n'' is the number of components.
	#'''SRL Translation Model'''. Composite SRL values are translated to whole numbers consistent with TRL and IRL scaling for ease of interpretation. To translate the 0 to 1 scale to a 1 to 9 scale, the SRL Translation Model is used to map the decimal values to whole number values. Because the SRA is dependent on the system architecture configuration, a SRL Translation Model is generated for each architecture configuration when performing the SRA.		#'''SRL Translation Model'''. Composite SRL values are translated to whole numbers consistent with TRL and IRL scaling for ease of interpretation. To translate the 0 to 1 scale to a 1 to 9 scale, the SRL Translation Model is used to map the decimal values to whole number values. Because the SRA is dependent on the system architecture configuration, a SRL Translation Model is generated for each architecture configuration when performing the SRA.

S203227: /* Component SRL */

2021-02-28T22:20:09Z

Component SRL

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	A Component SRL is the System Readiness Level of an individual component of the system and its integration links <ref name="one"/>. Component SRLs are used to identify system component variations, both in terms of being behind and too far ahead in regard to their readiness and thus require Program Management and/or engineering attention <ref name="one"/>.		A Component SRL is the System Readiness Level of an individual component of the system and its integration links <ref name="one"/>. Component SRLs are used to identify system component variations, both in terms of being behind and too far ahead in regard to their readiness and thus require Program Management and/or engineering attention <ref name="one"/>.

	The ''SRL<sub>i</sub>'' for each component ''i'' is divided by ''m<sub>i</sub>'' to obtain its Component SRL value. The ''m<sub>i</sub>'' term is the number of integrations of component ''i'' with every other component as defined by the system architecture ~~<ref name="one"/>~~ <ref name="one"/>.		The ''SRL<sub>i</sub>'' for each component ''i'' is divided by ''m<sub>i</sub>'' to obtain its Component SRL value. The ''m<sub>i</sub>'' term is the number of integrations of component ''i'' with every other component as defined by the system architecture <ref name="one"/>.

	<math>		<math>

S203227: /* The 3-Step SRA Process */

2021-02-28T22:01:46Z

The 3-Step SRA Process

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	# Decompose and Map System		# Decompose and Map System
	# Perform Iterative Evaluations		# Perform Iterative Evaluations
	[[File:The_3-Step_SRA_Process.png‎\|thumb\|upright=4\|right\|The 3-Step SRA Process]]		[[File:The_3-Step_SRA_Process.png‎\|thumb\|upright=4\|right\|The 3-Step SRA Process.]]

S203227: /* Perform Iterative Evaluations */

2021-02-28T22:01:09Z

Perform Iterative Evaluations

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	#'''SRL Matrix'''. In order to calculate a value of the SRL from the TRL and IRL values, an SRL matrix is generated by obtaining the product of the IRL and TRL matrices.		#'''SRL Matrix'''. In order to calculate a value of the SRL from the TRL and IRL values, an SRL matrix is generated by obtaining the product of the IRL and TRL matrices.
	#'''Component SRL'''. The corresponding ''~~SRL_i~~'' for each component ''i'' is then divided by ''~~m_i~~'' to obtain its normalized value.		#'''Component SRL'''. The corresponding ''SRL<sub>i</sub>'' for each component ''i'' is then divided by ''m<sub>i</sub>'' to obtain its normalized value.
	#'''Composite SRL'''. The Composite SRL for the system is the average of the Component SRL values, where ''n'' is the number of components.		#'''Composite SRL'''. The Composite SRL for the system is the average of the Component SRL values, where ''n'' is the number of components.
	#'''SRL Translation Model'''. Composite SRL values are translated to whole numbers consistent with TRL and IRL scaling for ease of interpretation. To translate the 0 to 1 scale to a 1 to 9 scale, the SRL Translation Model is used to map the decimal values to whole number values. Because the SRA is dependent on the system architecture configuration, a SRL Translation Model is generated for each architecture configuration when performing the SRA.		#'''SRL Translation Model'''. Composite SRL values are translated to whole numbers consistent with TRL and IRL scaling for ease of interpretation. To translate the 0 to 1 scale to a 1 to 9 scale, the SRL Translation Model is used to map the decimal values to whole number values. Because the SRA is dependent on the system architecture configuration, a SRL Translation Model is generated for each architecture configuration when performing the SRA.

S203227: /* Component SRL */

2021-02-28T21:58:39Z

Component SRL

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	A Component SRL is the System Readiness Level of an individual component of the system and its integration links <ref name="one"/>. Component SRLs are used to identify system component variations, both in terms of being behind and too far ahead in regard to their readiness and thus require Program Management and/or engineering attention <ref name="one"/>.		A Component SRL is the System Readiness Level of an individual component of the system and its integration links <ref name="one"/>. Component SRLs are used to identify system component variations, both in terms of being behind and too far ahead in regard to their readiness and thus require Program Management and/or engineering attention <ref name="one"/>.

	The ''~~SRL_i~~'' for each component ''i'' is divided by ''m<sub>i</sub>'' to obtain its Component SRL value. The ''m<sub>i</sub>'' term is the number of integrations of component ''i'' with every other component as defined by the system architecture <ref name="one"/> <ref name="one"/>.		The ''SRL<sub>i</sub>'' for each component ''i'' is divided by ''m<sub>i</sub>'' to obtain its Component SRL value. The ''m<sub>i</sub>'' term is the number of integrations of component ''i'' with every other component as defined by the system architecture <ref name="one"/> <ref name="one"/>.

	<math>		<math>

S203227: /* System Readiness Metrics */

2021-02-28T21:57:53Z

System Readiness Metrics

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	A Component SRL is the System Readiness Level of an individual component of the system and its integration links <ref name="one"/>. Component SRLs are used to identify system component variations, both in terms of being behind and too far ahead in regard to their readiness and thus require Program Management and/or engineering attention <ref name="one"/>.		A Component SRL is the System Readiness Level of an individual component of the system and its integration links <ref name="one"/>. Component SRLs are used to identify system component variations, both in terms of being behind and too far ahead in regard to their readiness and thus require Program Management and/or engineering attention <ref name="one"/>.

	The ''SRL_i'' for each component ''i'' is divided by ''~~m_i~~'' to obtain its Component SRL value. The ''~~m_i~~'' term is the number of integrations of component ''i'' with every other component as defined by the system architecture <ref name="one"/> <ref name="one"/>.		The ''SRL_i'' for each component ''i'' is divided by ''m<sub>i</sub>'' to obtain its Component SRL value. The ''m<sub>i</sub>'' term is the number of integrations of component ''i'' with every other component as defined by the system architecture <ref name="one"/> <ref name="one"/>.

	<math>		<math>
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	The SRL matrix consists of one element for each of the represented components and quantifies the readiness level, of a specific component, with respect to every other component in the system while also accounting for the development state of each.		The SRL matrix consists of one element for each of the represented components and quantifies the readiness level, of a specific component, with respect to every other component in the system while also accounting for the development state of each.

	Mathematically, ''~~TRL_i~~'' represent the individual TRLs and the ''~~IRL_ij~~'' are the individual IRLs between the components. ''~~SRL_i~~'' represents the readiness level of Component ''i'', reflecting the readiness of all of its connections <ref name="one"/>.		Mathematically, ''TRL<sub>i</sub>'' represent the individual TRLs and the ''IRL<sub>ij</sub>'' are the individual IRLs between the components. ''SRL<sub>i</sub>'' represents the readiness level of Component ''i'', reflecting the readiness of all of its connections <ref name="one"/>.

S203227: /* IRL */

2021-02-28T21:56:25Z

IRL

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	The IRLs assists the systems engineer in identifying development areas that require additional engineering. IRLs also provide a means to reduce the risk involved in maturing and integrating components into a system. Therefore, IRLs can give a combined systems measure for both new system development and technology insertion <ref name="one"/>. However, The TRL metric does not accurately capture the risk involved in the adopting of a technology <ref name="four">[''https://www.researchgate.net/publication/228752216_An_Approach_to_Technology_Risk_Management , Valerdi, R., and R.J. Kohl., 2004.''] ''An Approach to Technology Risk Management. (PDF)'' </ref>. Furthermore, technologies can have an architectural inequality related to their integration <ref name="five">[''https://apps.dtic.mil/sti/pdfs/ADA443149.pdf , Smith, J.D., 2005.''] ''An Alternative to Technology Readiness Levels for Non-Developmental Item (Ndi) Software. (PDF)'' </ref>. As systems’ complexity increases there must be a reliable method for integration that allows TRLs to collectively combine for develop these complex systems <ref name="two"/>		The IRLs assists the systems engineer in identifying development areas that require additional engineering. IRLs also provide a means to reduce the risk involved in maturing and integrating components into a system. Therefore, IRLs can give a combined systems measure for both new system development and technology insertion <ref name="one"/>. However, The TRL metric does not accurately capture the risk involved in the adopting of a technology <ref name="four">[''https://www.researchgate.net/publication/228752216_An_Approach_to_Technology_Risk_Management , Valerdi, R., and R.J. Kohl., 2004.''] ''An Approach to Technology Risk Management. (PDF)'' </ref>. Furthermore, technologies can have an architectural inequality related to their integration <ref name="five">[''https://apps.dtic.mil/sti/pdfs/ADA443149.pdf , Smith, J.D., 2005.''] ''An Alternative to Technology Readiness Levels for Non-Developmental Item (Ndi) Software. (PDF)'' </ref>. As systems’ complexity increases there must be a reliable method for integration that allows TRLs to collectively combine for develop these complex systems <ref name="two"/>

	The IRL matrix represents the integration of different components with each other from a systems perspective. The integration between components ''i'' and ''j'' is represented by ''~~IRL_ij~~'' in the IRL matrix. The theoretical integration of a component ''i'' to itself is denoted by ''~~IRL_ii~~'' and is assumed to be a maximum <ref name="one"/>.		The IRL matrix represents the integration of different components with each other from a systems perspective. The integration between components ''i'' and ''j'' is represented by ''IRL<sub>ij</sub>'' in the IRL matrix. The theoretical integration of a component ''i'' to itself is denoted by ''IRL<sub>ii</sub>'' and is assumed to be a maximum <ref name="one"/>.

	<math>		<math>

S203227: /* TRL */

2021-02-28T21:54:55Z

TRL

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	\|}		\|}

	The TRL is defined as a vector with ''n'' components where ''~~TRL_i~~'' is the TRL of component ''i'':		The TRL is defined as a vector with ''n'' components where ''TRL<sub>i</sub>'' is the TRL of component ''i'':

	<math>		<math>