> For the complete documentation index, see [llms.txt](https://mims.oascities.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mims.oascities.org/local-digital-twins/mim8-local-digital-twins/objective.md).

# Objective

## Objective 

Enables Local Digital Twins (LDTs) to **orchestrate** workflows, data, models and visualisations across systems, domains, and communities. It ensures that LDTs move beyond isolated, project-specific implementations toward federated, reusable, and scalable ecosystems, ensuring:

* Cross-domain decision support (e.g. climate, mobility, urban planning)
* Reuse of models, datasets, and simulation outputs across communities and use cases
* Participation of multiple stakeholders (public, private, citizens)
* Progressive maturity from standalone LDTs to interconnected virtual worlds environments (note, virtual worlds environments is not addressed by MIM8.)

In doing so, this MIM leverages on all [MIMs](https://oasc.gitbook.io/mims-specification-8) (0,1,2,6,3,4,7,5) and provides guidance for interoperable orchestration measures. 

#### MIM8's scope re *orchestration:*

*MIM8 (LDT) positions orchestration as the capability to connect and coordinate LDT components (add capability instead of components) within an LDT (intra-LDT) and between LDTs (inter-LDT), progressively across maturity levels. Intra-LDT orchestration focuses on interoperability across architectural layers, most critically enabling the same scenario outputs to be consumed by different visualisations (e.g., Geo and 3D) and allowing different predictive/algorithmic models to be plugged in with clearly specified inputs, parameters, and outputs, including automated checks for schema/unit/space-time alignment. Inter-LDT orchestration covers controlled exchange and reuse of data/models/scenario results with other LDTs via standard interfaces, with governance hooks such as access control, provenance, and audit logging.*


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