IDEAS home Printed from
   My bibliography  Save this article

Techniques for Managing Changes to Existing Simulation Models


  • Sally Edwards

    () (Department for Work and Pensions (DWP), Model Development Unit, Strategy Directorate, 6th Floor, Caxton House, Tothill St, London, SW1A 9NA, UK)


In This paper provides guidance for managing the enhancement and maintenance of an existing microsimulation model. It focuses on techniques and practices that have been developed to maintain Pensim2; the Department for Work and Pensions (DWP) dynamic microsimulation model that simulates state and private pension entitlement. This guidance is appropriate for any type of model. Standard project management techniques and bespoke simulation model procedures are explained. This guidance is aimed at new modellers and project managers and is particularly relevant for models that are supported by a team, rather than an individual. Models are generally used for many years after they are launched, so it is essential that strong maintenance procedures and project governance structures are put in place. Specifically, this paper includes guidance and examples of structured Change Control processes that are used to manage enhancements and fixes to the model. The Change Control process includes: defining requirements, estimation, design, code reviews, testing/validation, managing multiple modellers changing the same programs and the use of development checklists. Structured Release management guidance is also included in this paper

Suggested Citation

  • Sally Edwards, 2010. "Techniques for Managing Changes to Existing Simulation Models," International Journal of Microsimulation, International Microsimulation Association, vol. 3(2), pages 80-89.
  • Handle: RePEc:ijm:journl:v:3:y:2010:i:2:p:80-89

    Download full text from publisher

    File URL:
    Download Restriction: no


    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.

    Cited by:

    1. Justin van de Ven, 2016. "LINDA: A dynamic microsimulation model for analysing policy effects on the evolving population cross-section," National Institute of Economic and Social Research (NIESR) Discussion Papers 459, National Institute of Economic and Social Research.
    2. van de Ven, Justin, 2017. "SIDD: An adaptable framework for analysing the distributional implications of policy alternatives where savings and employment decisions matter," Economic Modelling, Elsevier, vol. 63(C), pages 161-174.

    More about this item


    Access and download statistics


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ijm:journl:v:3:y:2010:i:2:p:80-89. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Jinjing Li). General contact details of provider: .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.