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What-If simulations in Atoti Market Risk are implemented across individual modules and the application layer. The WhatIf Manager API provides customization points in the following areas:
  • User interface
  • Workflow
  • Persistence

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What-If Manager API

The What-If Manager provides an API for defining, executing and managing What-If simulations on the datastore, which can then be viewed, compared and, if required, merged back as the main working copy. It allows simple code definition of custom simulation logic on entries in the datastore, while abstracting out the specifics of branch and epoch management. It also includes an Atoti UI widget to allow for user-friendly branch management and What-If execution and audit. It allows a developer to completely customize the workflow, security and persistence around simulations created and executed (with out-of-the-box examples provided for the use cases described in this document).