Digital Surveys for the Implementation of Heritage BIM

In a Building Information Model, “the Level of Information Needs should be determined by the minimum amount of information required: anything above this minimum is considered ‘waste’. This is stated by EN ISO 19650-1, which also defines the concept of ‘federation of models’, able to express the information complexity that characterises built heritage. In the current research, digital survey procedures are applied for Heritage BIM, whose information system is implemented through Visual Programming Language (VPL) procedures; the survey phase takes into account the quality, quantity and granularity of information needs, avoiding excessive ‘waste’.