Model scope and methods - WITNESS - Revision history

Maarten van den Berg at 09:23, 29 January 2025

2025-01-29T09:23:02Z

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Maarten van den Berg at 09:22, 29 January 2025

2025-01-29T09:22:03Z

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Maarten van den Berg at 09:08, 29 January 2025

2025-01-29T09:08:46Z

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	= Model scope =		= Model scope =
	WITNESS stands for "World environmental ImpacT aNd Economics ScenarioS".		WITNESS stands for "World environmental ImpacT aNd Economics ScenarioS".

Thierry Chevalier at 09:41, 26 December 2024

2024-12-26T09:41:30Z

← Older revision		Revision as of 11:41, 26 December 2024
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	WITNESS stands for "World environmental ImpacT aNd Economics ScenarioS".		WITNESS stands for "World environmental ImpacT aNd Economics ScenarioS".

	It is a global Integrated Assessment Model (IAM) framework, covering the world globally (regionalization in progress and first level sectorization completed). The framework covers MacroEconomics, Energy, Materials, Natural resources, Environment, Population and Public Policies - mostly endogenous and fully coupled (i.e. taking into account all the feedback loops representing mutual interactions between models).[[File:WITNESS Overview.png\|alt=WITNESS high level system view\|none\|thumb\|895x895px\|WITNESS high level system view (Water use not yet well implemented despite shown)]]		It is a global Integrated Assessment Model (IAM) framework, covering the world globally (regionalization in progress and first level sectorization completed). The framework covers MacroEconomics, Energy, Materials, Natural resources, Environment, Population and Public Policies - mostly endogenous and fully coupled (i.e. taking into account all the feedback loops representing mutual interactions between models).[[File:WITNESS Overview.png\|alt=WITNESS high level system view\|none\|thumb\|895x895px\|WITNESS high level system view (Water use not yet well implemented yet despite shown here)]]
	Most of the models are based on equations rather than data analysis and extrapolation, and the feedback loops generated by models interdependencies are efficiently and largely automatically tackled by the underlying simulation platform specifically developed to support it. This simulation platform called SoSTrades (which stands for "System of Systems Trades"), and can by the way be used independently as a generic and powerful Multi-Disciplinary Analysis and Optimization ( [http:///en.wikipedia.org/wiki/Multidisciplinary design optimization MDAO] ) simulation platform.		Most of the models are based on equations rather than data analysis and extrapolation, and the feedback loops generated by models interdependencies are efficiently and largely automatically tackled by the underlying simulation platform specifically developed to support it. This simulation platform called SoSTrades (which stands for "System of Systems Trades"), and can by the way be used independently as a generic and powerful Multi-Disciplinary Analysis and Optimization ( [http:///en.wikipedia.org/wiki/Multidisciplinary design optimization MDAO] ) simulation platform.

Thierry Chevalier: /* Model scope */

2024-12-26T09:40:51Z

Model scope

← Older revision		Revision as of 11:40, 26 December 2024
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	WITNESS stands for "World environmental ImpacT aNd Economics ScenarioS".		WITNESS stands for "World environmental ImpacT aNd Economics ScenarioS".

	It is a global Integrated Assessment Model (IAM) framework, covering the world globally (regionalization in progress and first level sectorization completed). The framework covers MacroEconomics, Energy, Materials, Natural resources, Environment, Population and Public Policies - mostly endogenous and fully coupled (i.e. taking into account all the feedback loops representing mutual interactions between models).[[File:WITNESS Overview.png\|alt=WITNESS high level system view\|none\|thumb\|895x895px\|WITNESS high level system view]]		It is a global Integrated Assessment Model (IAM) framework, covering the world globally (regionalization in progress and first level sectorization completed). The framework covers MacroEconomics, Energy, Materials, Natural resources, Environment, Population and Public Policies - mostly endogenous and fully coupled (i.e. taking into account all the feedback loops representing mutual interactions between models).[[File:WITNESS Overview.png\|alt=WITNESS high level system view\|none\|thumb\|895x895px\|WITNESS high level system view (Water use not yet well implemented despite shown)]]
	Most of the models are based on equations rather than data analysis and extrapolation, and the feedback loops generated by models interdependencies are efficiently and largely automatically tackled by the underlying simulation platform specifically developed to support it. This simulation platform called SoSTrades (which stands for "System of Systems Trades"), and can by the way be used independently as a generic and powerful Multi-Disciplinary Analysis and Optimization ( [http:///en.wikipedia.org/wiki/Multidisciplinary design optimization MDAO] ) simulation platform.		Most of the models are based on equations rather than data analysis and extrapolation, and the feedback loops generated by models interdependencies are efficiently and largely automatically tackled by the underlying simulation platform specifically developed to support it. This simulation platform called SoSTrades (which stands for "System of Systems Trades"), and can by the way be used independently as a generic and powerful Multi-Disciplinary Analysis and Optimization ( [http:///en.wikipedia.org/wiki/Multidisciplinary design optimization MDAO] ) simulation platform.

Thierry Chevalier: /* Model scope */

2024-12-26T09:39:44Z

Model scope

← Older revision		Revision as of 11:39, 26 December 2024
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	WITNESS stands for "World environmental ImpacT aNd Economics ScenarioS".		WITNESS stands for "World environmental ImpacT aNd Economics ScenarioS".

	It is a global Integrated Assessment Model (IAM) framework, covering the world globally (regionalization and sectorization ~~are in progress to be fully~~ completed ~~by end'24~~). The framework covers MacroEconomics, Energy, Materials, Natural resources, Environment, Population and Public Policies - mostly endogenous and fully coupled (i.e. taking into account all the feedback loops representing mutual interactions between models).[[File:WITNESS Overview.png\|alt=WITNESS high level system view\|none\|thumb\|895x895px\|WITNESS high level system view]]		It is a global Integrated Assessment Model (IAM) framework, covering the world globally (regionalization in progress and first level sectorization completed). The framework covers MacroEconomics, Energy, Materials, Natural resources, Environment, Population and Public Policies - mostly endogenous and fully coupled (i.e. taking into account all the feedback loops representing mutual interactions between models).[[File:WITNESS Overview.png\|alt=WITNESS high level system view\|none\|thumb\|895x895px\|WITNESS high level system view]]
	Most of the models are based on equations rather than data analysis and extrapolation, and the feedback loops generated by models interdependencies are efficiently and largely automatically tackled by the underlying simulation platform specifically developed to support it. This simulation platform called SoSTrades (which stands for "System of Systems Trades"), and can by the way be used independently as a generic and powerful Multi-Disciplinary Analysis and Optimization ( [http:///en.wikipedia.org/wiki/Multidisciplinary design optimization MDAO] ) simulation platform.		Most of the models are based on equations rather than data analysis and extrapolation, and the feedback loops generated by models interdependencies are efficiently and largely automatically tackled by the underlying simulation platform specifically developed to support it. This simulation platform called SoSTrades (which stands for "System of Systems Trades"), and can by the way be used independently as a generic and powerful Multi-Disciplinary Analysis and Optimization ( [http:///en.wikipedia.org/wiki/Multidisciplinary design optimization MDAO] ) simulation platform.

Thierry Chevalier at 08:36, 24 September 2024

2024-09-24T08:36:41Z

Thierry Chevalier at 15:23, 19 September 2024

2024-09-19T15:23:02Z

← Older revision		Revision as of 17:23, 19 September 2024
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	This methodology allows easy and modular refinement of various systems, as well as rigorous handling of all the interactions and feedback loops between them. It also allows to leverage a full range of numerical multi-disciplinary analysis and optimization ([[wikipedia:Multidisciplinary design optimization\|MDAO]]) methods and tools to build a complete world transition model.		This methodology allows easy and modular refinement of various systems, as well as rigorous handling of all the interactions and feedback loops between them. It also allows to leverage a full range of numerical multi-disciplinary analysis and optimization ([[wikipedia:Multidisciplinary design optimization\|MDAO]]) methods and tools to build a complete world transition model.

	For example in the basic WITNESS framework, an MDO controller is optimizing ventilation of available investment from Macro-economy to various Energy production techniques in Energy system, in order to maximize energy production while minimizing emissions under resources and materials constraints (more details [https://www.witness4climate.org/optimizing-investments-in-energy-production-technology/ here]).		For example in the basic WITNESS framework, an MDO controller is optimizing ventilation of available investment from Macro-economy to various Energy production techniques in Energy system, in order to maximize energy production while minimizing emissions under resources and materials constraints (more details [https://www.witness4climate.org/optimizing-investments-in-energy-production-technology/ here] or [https://github.com/os-climate/witness-core/blob/main/documentation/witness_coarse/process.md here]).

	= SoSTrades simulation platform =		= SoSTrades simulation platform =

Thierry Chevalier at 14:59, 19 September 2024

2024-09-19T14:59:09Z

← Older revision		Revision as of 16:59, 19 September 2024
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	= WITNESS framework =		= WITNESS framework =
	WITNESS applies complex [[wikipedia:System of systems\|system of systems]] (1) simulation techniques to IAM modelling , applying a [[wikipedia:Systems engineering\|system engineering]] approach starting from the high level system view presented in the picture above with their interactions.		WITNESS applies complex [[wikipedia:System of systems\|system of systems]] (1) simulation techniques to IAM modelling , applying a [[wikipedia:Systems engineering\|system engineering]] approach starting from the high level system view presented in the picture above with their interactions (more detail in the section "Model concept, solver and details").

	This methodology allows easy and modular refinement of various systems, as well as rigorous handling of all the interactions and feedback loops between them. It also allows to leverage a full range of numerical multi-disciplinary analysis and optimization ([[wikipedia:Multidisciplinary design optimization\|MDAO]]) methods and tools to build a complete world transition model.		This methodology allows easy and modular refinement of various systems, as well as rigorous handling of all the interactions and feedback loops between them. It also allows to leverage a full range of numerical multi-disciplinary analysis and optimization ([[wikipedia:Multidisciplinary design optimization\|MDAO]]) methods and tools to build a complete world transition model.

	For example in the basic WITNESS framework, an MDO controller is optimizing ventilation of available investment from Macro-economy to various Energy production techniques in Energy system, in order to maximize energy production while minimizing emissions under resources and materials ~~contraints~~ (more details [https://www.witness4climate.org/optimizing-investments-in-energy-production-technology/ here]).		For example in the basic WITNESS framework, an MDO controller is optimizing ventilation of available investment from Macro-economy to various Energy production techniques in Energy system, in order to maximize energy production while minimizing emissions under resources and materials constraints (more details [https://www.witness4climate.org/optimizing-investments-in-energy-production-technology/ here]).

	= SoSTrades simulation platform =		= SoSTrades simulation platform =

Thierry Chevalier at 14:57, 19 September 2024

2024-09-19T14:57:06Z

← Older revision		Revision as of 16:57, 19 September 2024
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	This methodology allows easy and modular refinement of various systems, as well as rigorous handling of all the interactions and feedback loops between them. It also allows to leverage a full range of numerical multi-disciplinary analysis and optimization ([[wikipedia:Multidisciplinary design optimization\|MDAO]]) methods and tools to build a complete world transition model.		This methodology allows easy and modular refinement of various systems, as well as rigorous handling of all the interactions and feedback loops between them. It also allows to leverage a full range of numerical multi-disciplinary analysis and optimization ([[wikipedia:Multidisciplinary design optimization\|MDAO]]) methods and tools to build a complete world transition model.

	For example in the basic WITNESS framework, an MDO controller is optimizing ventilation of available investment from Macro-economy to various Energy production techniques in Energy system, in order to maximize energy production while minimizing emissions under resources and materials contraints (more ~~detailes~~ [https://www.witness4climate.org/optimizing-investments-in-energy-production-technology/ here]).		For example in the basic WITNESS framework, an MDO controller is optimizing ventilation of available investment from Macro-economy to various Energy production techniques in Energy system, in order to maximize energy production while minimizing emissions under resources and materials contraints (more details [https://www.witness4climate.org/optimizing-investments-in-energy-production-technology/ here]).

	= SoSTrades simulation platform =		= SoSTrades simulation platform =

← Older revision		Revision as of 10:36, 24 September 2024
Line 3:		Line 3:

	It is a global Integrated Assessment Model (IAM) framework, covering the world globally (regionalization and sectorization are in progress to be fully completed by end'24). The framework covers MacroEconomics, Energy, Materials, Natural resources, Environment, Population and Public Policies - mostly endogenous and fully coupled (i.e. taking into account all the feedback loops representing mutual interactions between models).[[File:WITNESS Overview.png\|alt=WITNESS high level system view\|none\|thumb\|895x895px\|WITNESS high level system view]]		It is a global Integrated Assessment Model (IAM) framework, covering the world globally (regionalization and sectorization are in progress to be fully completed by end'24). The framework covers MacroEconomics, Energy, Materials, Natural resources, Environment, Population and Public Policies - mostly endogenous and fully coupled (i.e. taking into account all the feedback loops representing mutual interactions between models).[[File:WITNESS Overview.png\|alt=WITNESS high level system view\|none\|thumb\|895x895px\|WITNESS high level system view]]
	Most of the models are based on equations rather than data analysis and extrapolation, and the feedback loops generated by models interdependencies are efficiently and largely automatically tackled by the underlying simulation platform specifically developed to support it.		Most of the models are based on equations rather than data analysis and extrapolation, and the feedback loops generated by models interdependencies are efficiently and largely automatically tackled by the underlying simulation platform specifically developed to support it. This simulation platform called SoSTrades (which stands for "System of Systems Trades"), and can by the way be used independently as a generic and powerful Multi-Disciplinary Analysis and Optimization ( [http:///en.wikipedia.org/wiki/Multidisciplinary design optimization MDAO] ) simulation platform.

	This simulation platform called SoSTrades (which stands for "System of Systems Trades"), and can by the way be used independently as a generic and powerful Multi-Disciplinary Analysis and Optimization ( [http:///en.wikipedia.org/wiki/Multidisciplinary design optimization MDAO] ) simulation platform.


	The primary goal of WITNESS is to enable collaborative exploration of potential transition paths through simulation, pinpointing the key drivers that could steer these changes and the importance of feedback loops effects. Such a joint exploration aims to foster consensus on target trajectory envelopes, which is crucial for rallying a critical mass of stakeholders. Such collective agreement and engagement are seen as instrumental in successfully transitioning complete ecosystems.		The primary goal of WITNESS is to enable collaborative exploration of potential transition paths through simulation, pinpointing the key drivers that could steer these changes and the importance of feedback loops effects. Such a joint exploration aims to foster consensus on target trajectory envelopes, which is crucial for rallying a critical mass of stakeholders. Such collective agreement and engagement are seen as instrumental in successfully transitioning complete ecosystems.


	Additionally, there’s an emphasis on risk estimation. This involves measuring the deviation between the planned trajectory and the worst possible scenarios, providing a quantitative assessment of risks associated with the transition. This metric serves as a vital tool for decision-makers to evaluate and manage potential uncertainties and challenges that may arise during the transition period.		Additionally, there’s an emphasis on risk estimation. This involves measuring the deviation between the planned trajectory and the worst possible scenarios, providing a quantitative assessment of risks associated with the transition. This metric serves as a vital tool for decision-makers to evaluate and manage potential uncertainties and challenges that may arise during the transition period.
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	= WITNESS framework =		= WITNESS framework =
	WITNESS applies complex [[wikipedia:System of systems\|system of systems]] (1) simulation techniques to IAM modelling , applying a [[wikipedia:Systems engineering\|system engineering]] approach starting from the high level system view presented in the picture above with their interactions (more detail in the section "Model concept, solver and details").		WITNESS applies complex [[wikipedia:System of systems\|system of systems]] (1) simulation techniques to IAM modelling, applying a [[wikipedia:Systems engineering\|system engineering]] approach starting from the high level system view presented in the picture above with their interactions (more detail in the section "Model concept, solver and details").

	This methodology allows easy and modular refinement of various systems, as well as rigorous handling of all the interactions and feedback loops between them. It also allows to leverage a full range of numerical multi-disciplinary analysis and optimization ([[wikipedia:Multidisciplinary design optimization\|MDAO]]) methods and tools to build a complete world transition model.		This methodology allows easy and modular refinement of various systems, as well as rigorous handling of all the interactions and feedback loops between them. It also allows to leverage a full range of numerical multi-disciplinary analysis and optimization ([[wikipedia:Multidisciplinary design optimization\|MDAO]]) methods and tools to build a complete world transition model.
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	WITNESS and SoSTrades are part of [http:///os-climate.org/transition-analysis/ Transition analysis] project of the [http:///os-climate.org/ Open Source for Climate], part of the [http:///www.finos.org/os-climate FINOS] initiative from the [http:///www.linuxfoundation.org/ Linux Foundation].		WITNESS and SoSTrades are part of [http:///os-climate.org/transition-analysis/ Transition analysis] project of the [http:///os-climate.org/ Open Source for Climate], part of the [http:///www.finos.org/os-climate FINOS] initiative from the [http:///www.linuxfoundation.org/ Linux Foundation].

	Their development is ~~strongly~~ supported by [http:///www.capgemini.com/ Capgemini], which is also providing industrial grade deployment and support option, as well as several extensions to derive from WITNESS generated transition scenario various enterprise strategy models.		Their development is supported by [http:///www.capgemini.com/ Capgemini], which is also providing industrial grade deployment and support option, as well as several extensions to derive from WITNESS generated transition scenario various enterprise strategy models.

	More details can be found on [http:///www.witness4climate.org/world-environmental-impact-and-economics-scenarios/ witness4climate.org] website.		More details can be found on [http:///www.witness4climate.org/world-environmental-impact-and-economics-scenarios/ witness4climate.org] website.