Stocks and Flows (Volumetric Modelling) - Phase 1

The Office for National Statistics (the Contracting Authority) requires specific external support building on work completed by ONS to date on Stocks & Flows (Volumetric Modelling). This is a phased requirement initially for a 5 week period for:

· Support in the design of a volumetric model that enables us to understand the impact of key drives to inform better and more timely decision making;

· Support in identifying what outputs we require to inform critical decisions and identify the source of key input information;

· Support in developing the architectural design of the model and in defining the calculation logic required within the model.

Outputs by end March 2018

High level stocks and flows model design document "the Model Design" including

· Architectural design

· Identification of format and source of model inputs and outputs

· Description of model calculation logic.