Specification with BIM is a tool for the professional
BIM allows the professional (architects, engineers, BIM managers, etc.) to take more and better measurements in a project thanks to the interrelated information between parameters. The queries that can be made about the BIM model can be varied and multiple, depending on the quantity and quality of data contained in the project.
The quantity take offs that a BIM model yields will depend on the data needs and the BIM software available in the market, for example, if the professional has specified branded BIM objects these can be measured by a software that allows to take budgets. With this measurement, the professional will be able to know the items, individual and total prices of the products, quantities, middlemen, suppliers, etc. Once you know this information you will have a complete report (structured and / or itemized budget) which will help you in the purchase process.
The BIM object that the company contributes becomes a work tool for the professional as it provides contrasted and validated information of their product, avoiding potential errors in specification and bill of materials, in this case the professional only has to incorporate the product file into the project model. On the other hand, when it is the professional who generates his own BIM file with reference to a Brand, it may be that the specified product information is not validated, or the information may be expired, it will be erroneous, or the product will simply no longer be available in the market. In this case the quantity takeoff will be incorrect, causing errors and extra costs to the general project. Here the responsibility falls on the professional who prescribed it and not the company mentioned in the object.
In this sense we can say that a manufacturer, or distributor of products or construction materials, when it provides a professional with its qualty BIM library, is helping them go about a job more efficiently and safely because the product information is contrasted with the brand and its product policies.
A higher level in this type of relationship is when the company Manufacturer or Distributor collaborates directly with the professional, not only by providing the quality BIM library, but also getting involved in the specification of their products (this is achieved through collaboration agreements between parties) through a BIM technical department. This entails working at a higher level of implementation and integration of BIM, since there is a need for sharing of experiences and data between the manufacturer and professional in order to achieve a BIM model with better yields and bills of materials.