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======  DEIX Topical Encyclopedia Entries ======
[[mbse:deix|[Return to DEIX Main Page]]]

**[[Authoritative Source of Truth]]**: An authoritative source of truth is an entity such as a person, governing body, or system that applies expert judgement and rules to proclaim a digital artifact is valid and originates from a legitimate source. ([[mbse:authoritative_source_of_truth|Click for more information]])

**[[mbse:digital_artifact|Digital Artifact]]**: A digital artifact is any combination of professional data, information, knowledge, and wisdom (DIKW) expressed in digital form and exchanged within a digital ecosystem. ([[mbse:digital_artifact|Click for more information]])

**[[mbse:digital_engineering|Digital Engineering]]**: Digital engineering is defined as ‘‘an integrated digital approach that uses authoritative sources of systems’ data and models as a continuum across disciplines to support lifecycle activities from concept through disposal [1].’’([[mbse:digital_engineering|Click for more information]])

**[[Digital Engineering Ecosystem]]**: A digital engineering ecosystem an interconnected infrastructure, environment, and model-based engineering (MBE) methodology that enables the exchange of digital artifacts from an authoritative source of truth [1]. It uses rule-based transactions for its stakeholder-network during the entire system lifecycle. ([[mbse:digital_engineering|Click for more information]])

**[[mbse:digital_engineering_information_exchange_model_topic|Digital Engineering Information Exchange Model]]**: A quantitative and qualitative representation based on model formalisms that characterizes the exchange of digital artifacts between various roles and organizations in the model-based engineering domain. ([[mbse:digital_engineering_information_exchange_model_topic|Click for more information]])

Digital Engineering Transformation

Digital Systems Model

**[[mbse:digital_thread|Digital Thread]]**:  Digital connections between historical and cross-discipline engineering data that seamlessly expedites the controlled interplay of digital artifacts, based on the Digital System Model template, to inform decision makers throughout a system's life cycle.([[mbse:digital_thread|Click for more Information]])

**[[Digital Twin]]**
 
**[[mbse:digital_view|Digital View]]**: A digital view is a visual presentation on an electronic display device of one or more processed digital artifacts, enabling the consumption of digital artifact content according to stakeholders’ unique activities at any phase or step in the system life cycle ([[mbse:digital_view|Click for more information]])
 
**[[mbse:digital_viewpoint|Digital Viewpoint]]**: A design of a digital view that uses conventions, formalisms and standards to define the systematic procedures to select, compile, layout, and present digital artifacts in a digital ecosystem such that is meets stakeholders’ unique needs. ([[mbse:digital_viewpoint|Click for more information]])

**[[Model Based Engineering]]**

**[[mbse:curating_digital_artifacts|Model Curation]]**: Model Curation is the lifecycle management, control, preservation and active enhancement of models and associated information to ensure value for current and future use, as well as repurposing beyond initial purpose and context. ([[mbse:curating_digital_artifacts|Click for more information]])
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