Lekarapa, MartinGrobbelaar, Schalk2023-02-222023-02-222022-11-11Lekarapa, M. & Grobbelaar, S. 2022, 'Evaluation of budgeting methods for maintenance of heritage buildings', South African Journal of Industrial Engineering, vol. 33, no. 3, pp. 96-108, doi : 10.7166/33-3-2794.1012-277X (print)2224-7890 (online)10.7166/33-3-2794https://repository.up.ac.za/handle/2263/89748Heritage buildings have evolved into development catalysts that, when properly maintained, can improve their surrounding area’s liveability while sustaining productivity in an ever-changing global context. Unfortunately, the high uncertainty involved in preserving heritage buildings frequently leads to over-budget projects. This article evaluates the factors that contribute to projects being over budget and the methods used to develop project budgets. History-based budgeting methods, value-oriented budgeting methods, analytical budgeting methods, and budgeting by condition description are frequently used, while new artificial intelligence models are also emerging. In addition, the review considers the Monte Carlo method and compares it with artificial intelligence models. Considering the high uncertainty involved when maintaining heritage buildings, it is concluded that the Monte Carlo method could be a very effective tool. For this reason, it is recommended that its use be tested on heritage building projects.Erfenisgeboue het ontwikkel in ontwikkelingskatalisators wat wanneer behoorlik onderhou word hul die omliggende gebiede se leefbaarheid kan verbeter terwyl produktiwiteit in 'n voortdurend veranderende globale konteks volgehou word. Ongelukkig lei die hoë onsekerheid verbonde aan die bewaring van erfenisgeboue dikwels tot projekte wat hul begroting oorskrei. Hierdie artikel evalueer die faktore wat daartoe bydra dat projekte oorspandeer en die metodes wat gebruik word om projekbegrotings te ontwikkel. Geskiedenisgebaseerde begrotingsmetodes, waardegeoriënteerde begrotingsmetodes, analitiese begrotingsmetodes en begroting volgens toestandbeskrywing word gereeld gebruik, terwyl nuwe kunsmatige intelligensie modelle ook na vore kom. Daarbenewens word die Monte Carlo methode oorweeg en met kunsmatige intelligensie-modelle vergelyk. Met inagneming van die hoë onsekerheid wat betrokke is by die instandhouding van erfenisgeboue, word tot die gevolgtrekking gekom dat die Monte Carlo metode 'n baie effektiewe hulpmiddel kan wees. Om hierdie rede word aanbeveel dat die gebruik daarvan op erfenisbouprojekte getoets word.en© 2022 Martin Lekarapa, Schalk Grobbelaar. This article is licensed under a Creative Commons Attribution License.Heritage buildingsProductivityMonte Carlo methodErfenisgeboueProduktiwiteitMonte Carlo methodeArticle