CAN/CGSB/CSA-ISO 7817-1:25

CGSB/CSA Preface This is the first edition of CAN/CGSB/CSA-ISO 7817-1, Building information modelling — Level of information need — Part 1: Concepts and principles , which is an adoption without modification of the identically titled ISO (International Organization for Standardization) Standard 7817-1 (first edition, 2024-06). For brevity, this Standard will be referred to as "CAN/CGSB/CSA-ISO 7817-1" throughout. This Standard was reviewed for Canadian adoption by the CGSB/CSA Joint Technical Committee on the Organization and Digitization of Information for the Built Environment, under the jurisdiction of the Canadian General Standards Board (CGSB) and the CSA Strategic Steering Committee on Construction and Civil Infrastructure, and has been formally approved by the Joint Technical Committee. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CGSB and CSA Group. Scope This document specifies concepts and principles to establish a methodology for specifying level of information need and information deliveries in a consistent way when using building information modelling (BIM). This document specifies the characteristics of different levels used for defining the detail and extent of information required to be exchanged and delivered throughout the life cycle of built assets. It gives guidelines for principles required to specify information needs. The concepts and principles in this document can be applied for a general information exchange and while in progress, for a generally agreed way of information exchange between parties in a collaborative work process, as well as for an appointment with specified information delivery. This document is applicable to the whole life cycle of any built asset, including strategic planning, initial design, engineering, development, documentation and construction, day-to-day operation, maintenance, refurbishment, repair and end-of-life.