Recommendations for the implementation of interoperability between SINAPI and NBR 15965 standards

Abstract Data interchangeability is a requirement of information digitalization. The digitization of information in Brazilian public works involves cost structure integration between the National System of Investigation of Costs and Indices of Civil Construction (SINAPI)) with the Building Information Model (BIM). The standard NBR 15965 - Construction Information Classification System has a different structure than SINAPI: this characteristic hinders interoperability. The aim of this research study is to make recommendations for the integration between the two systems. For this purpose, cost composition 92722 and its links with NBR 15965 codes were analysed. From the forty-five codes in NBR 15965, necessary for the characterization of the service, twelve are on the published tables “0P”, “1F” and “5I”; nineteen already could be in the published tables “0M”, “0P”, “1S” and “5I” and eleven codes could be considered for future tables (“2Q”, “2N”, “3R”, “3E” and “4A”). The recommendations made by this study are as follows: to associate properties (time, cost, material consumption) to the cost composition coefficients and include materials, materials’ properties and the choice criteria for the selection of construction services. The main contribution of this paper is the identification of gaps in SINAPI’s attributes and in NBR 15965 standards, configuring the first initiative for their integration.

摘要 数据可互换性是信息数字化的必要条件。巴西公共工程领域的信息数字化，需实现民用建筑成本与指数调查国家系统（National System of Investigation of Costs and Indices of Civil Construction，SINAPI）与建筑信息模型（Building Information Model，BIM）的成本结构整合。标准NBR 15965——建筑信息分类系统（Construction Information Classification System）的结构与SINAPI存在差异，该特性制约了二者的互操作性。本研究旨在为两大系统的整合提出可行建议。为此，本研究对成本构成项92722及其与NBR 15965编码的关联关系展开了分析。在用于表征该服务的45项NBR 15965编码中，12项已纳入已发布的"0P""1F"与"5I"表格；19项可纳入已发布的"0M""0P""1S"与"5I"表格；剩余11项编码可供未来表格收录（对应编号为"2Q""2N""3R""3E"与"4A"）。本研究提出的优化建议如下：将属性（工期、成本、材料消耗量）与成本构成系数相关联，并补充材料、材料属性及建筑服务选型标准相关内容。本研究的主要贡献在于识别了SINAPI属性与NBR 15965标准中的现存空白，为二者的整合开创了首个可行实践。