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This is a prototype reactive web app for bitemporal data management based on a Julia bitemporal data management API and a UI based on Stipple and QUASAR (where Stipple did not yet provide a solution, or I didn't find one).

• BitemporalReactive connects the business model to the view model and provides event handling.
• ContractSectionView defines the view model, the UI elements, and their data bindings.
• LifeInsuranceDataModel - an imported package - provides the business model and logic based on a framework for bitemporal data management
• LifeInsuranceProduct - an imported package - provides actuarial computations (mostly ony a placeholder by now)

• populating the database
• displaying contract versions and history

The app creates or mutates bitemporal entities as of a point in reference time. A bitemporal transaction - here also called workflow - is started in two ways:

• an instance of history - the root of bitemporal entities -
• a version
• a validity_interval

• a version
• a valididity_interval and references
• a given history

While these data comprise the scaffolding needed for bitemporal tracking of mutations, components and revisions comprise the business payload, as well as subcomponents and their revisions. Thus

-creation or invalidation of components/subcomponents together with their revisions and of

• updates of attributes of revisions

To populate the database use this notebook

Demo: Opening this project in GITPOD using the gitpod Button on the repo page

You get an environment with a running database populated with sample data, the Webapp running and link to open a browser window.