With EN ISO 16739-1:2020 exists an open language to design, transfer and maintain construction models. This document is a simplification of EN ISO 16739-1:2020 from an information technology point of view and as such is a Model View Definition (MVD). It focuses on core classes and relies on external data dictionaries to describe business semantics. Thanks to this MVD several objectives of Building Information Modelling (BIM) can be achieved: ·ð Less complex implementations without reduction of functionality, ·ð Agile integration of business semantics leading to more comprehensive interoperability for the end user, ·ð Support concurrent engineering by using already existing mechanisms. The users of the tools based on this MVD are able to: ·ð Use their specific business semantics thanks to the use of data dictionaries, ·ð Express their requirements and proposals related to construction objects, ·ð Describe parametric construction objects as well as configurable construction objects or products, ·ð Import and export construction object data in BIM models at any stage of the project (design, construction, operation), ·ð Describe bills of quantities (pre-design programs, technical specifications, offers), ·ð Call for tender and purchase construction objects, ·ð Check that the construction objects included in a project meet previously described requirements, ·ð Describe product catalogues originally described in accordance with Part 1. These scenarios fit in the business models of owners, designers, builders, manufacturers, and facility managers. This document does not provide any data template as it considers that these are already defined in data dictionaries compliant with EN ISO 12006-3. This document focuses only on the format of the exchanged data and not on the way to process them.