Proposição de ferramenta para comparar o desempenho de entregas de projetos de HIS baseadas em desenhos ou em BIM em contratações públicas no Brasil
João Alberto da Motta Gaspar · Orientador: Prof. Dr. Gil Garcia de Barros · FAUUSP · 2026
Apêndice A — Ferramenta para Comparação do Desempenho de Entrega de Projetos ECD e BIM em HIS
Regarding social housing (HIS) projects, how can one determine when BIM-centred procurement is more suitable than drawing-centred procurement?
The Brazilian Government has made considerable efforts and invested resources to promote BIM since 2009. This movement in the public sector has been driven by the potential benefits that BIM can bring to project procurement, construction monitoring, and asset management.
In 2021, the incentive to use BIM gained new momentum with its inclusion in the Public Procurement Act 14,133/2021, which replaced previous legislation on the subject, as determined by paragraph 3 of Art. 19:
In procurements for engineering and architecture works and services, whenever appropriate to the object of the procurement, Building Information Modelling (BIM) or similar and more advanced integrated technologies and processes shall preferably be adopted.
Brazil. Act No. 14,133, of 1 April 2021, Art. 19, §3 — our emphasis
The wording of paragraph 3 of Art. 19 requires that BIM shall be used in procurements whenever appropriate to their object.
The question facing the public official responsible for structuring a social housing (HIS) project procurement, regarding BIM, is therefore:
“Regarding HIS projects, how can one tell when BIM-centred procurement is more appropriate than drawing-centred procurement?”
To answer this question, the public official must consider several factors. Some of the points to be considered are presented below:
All of the above points are very important and must be considered by public officials when deciding to require BIM in the procurement documentation.
The tool presented in this Guide addresses the topic discussed in item (b) above. It allows anyone to compare the delivery performance of social housing (HIS) projects based on Drawing-Centred Delivery (ECD) against projects with BIM model-centred delivery.
For clarity throughout the text, from this point on we will use the term "ECD Project" to refer to a project whose output is organised around a set of technical drawing sheets. The term "BIM Project" will be used to refer to a project whose main output is the issuance of BIM Models, from which derived technical documents — such as technical drawing sheets — are produced.
This tool is used to compare delivery performance between at least one "ECD Project" and one "BIM Project" in social housing, with the aim of identifying which was delivered faster to a given public entity.
The projects to be compared must be as similar as possible regarding:
To use the tool presented in this guide, you will need access to various types of information from a reasonable sample of ECD and BIM projects, so that you can select the most similar ones according to the requirements above and carry out the comparisons.
From the broader perspective of procurement characteristics, the following information is required about the ECD and BIM projects you intend to analyse for selection:
- Procurement data: applicable legislation, the procurement scope (basic or executive design?), and the project start dates.
- Information about the design teams, project management analysts (if applicable), and public supervision staff, to assess the degree of similarity between these actors across the ECD and BIM projects in the sample.
- The design effort grade required to develop each ECD and BIM project to be evaluated. The "design effort grade" is an indicator that numerically summarises the effort needed to develop a given project, based on its programmatic and morphological characteristics defined during the feasibility phase and massing plan, before the decision to use BIM.
These are the delivery-related pieces of information for each selected ECD and BIM Project that you will need to gather:
- Delivery dates of all project documents to the project manager or supervisor.
- File path lists of documents on the designers' computers. The more correctly structured the folders and subfolders organising a procurement, and the more logically named the documents, the easier and more reliable data extraction will be.
- Information on the number of delivery packages (stages related to validation of design services and payment releases) structuring the procurement.
- Information on the number of delivery versions (intermediate stages, between packages, submitted to contract supervision for review, without payment release).
- Information on the number of revised documents and their revision numbers.
- Information on the contracted disciplines, which can be extracted from file naming conventions.
- Information on the types of documents to be analysed and the file formats to be delivered.
To use the ECD-BIM tool, simply...
click hereIf you are having difficulty using the tool, please write to the author: contato@joaogaspar.com