\"Digital twinning\" is the process of building and updating the digital twin.

A learning-focused digital twin can be implemented through stakeholder engagement activities, by itself or to complement a web portal digital twin.

A digital twin is a time-varying representation of a system that brings together observed information and predictive model capabilities. It provides a structure within which to accumulate information and understanding, identify uncertainties and gaps, and reason about the value of new information, in addition to reasoning about potential improvements to system operation.

This portal makes use of a loosely coupled integration approach to bringing knowledge together.

The Queensland Water Modelling Network 2021-2022 Digital Twin project used conversations with landholders to explore how a digital twin could help

The Queensland Water Modelling Network 2021-2022 Digital Twin project used "policy prompt packs" drawing on the digital twin to facilitate conversations about regulatory processes

It may seem strange that the digital twin includes a description of the digital twin. This "self-reference" is included to make explicit how the digital twin is meant to work, and help reason about how it can be improved in future.

Given the lower technical demands of a loose coupling digital twin, it is possible to implement it as a website hosting a repository of static content, as a kind of “knowledge hub”, wiki or “web portal”. A web portal digital twin for a catchment can, for example, define concepts for catchments (physical feature), water budget (qualities), inflows and outflows (processes). A concrete instance can be defined for a particular catchment (e.g., sub-catchment on a property) and time period, with estimates drawn manually from multiple data sources described in the digital twin. In a web portal digital twin, the visualisation of the water budget might be a printable graph provided on a static web page, with clearly annotated provenance, and a description of the protocol used to produce it. The digital twin is the portal, which includes a page describing both the portal and its use.