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Nematrian Reference Library

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Executive summary (partial) "… Hundreds of models are being used across government to influence policy, and it is vital that they are equal to this task. Quality assurance is a key means of ensuring this. To assure current arrangements are robust, the review team conducted three strands of work. Firstly, it interviewed public and private sector organisations and professional bodies, to identify best practice. Secondly, it collected and analysed data on departments’ current QA practices. Thirdly, and drawing on the outputs from these workstreams, it developed recommendations. The many components of best practice in QA fall under two headings: modelling environment, and process. The right modelling environment involves a culture where leaders value and recognise good QA. It requires adequate capacity, including specialist skills and sufficient time to conduct QA effectively. It also needs a set of controls, including a clear internal chain of responsibility and a route for challenge where analysts have concerns. The process side, on the other hand, is about a systematic approach to make QA accessible, easy and comprehensive. It requires clear guidance on QA, and clear documentation for every model …"

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