In a previous article, we discussed the fundamental concepts and principles of Part 1 of ISO 19650, or the conceptual framework for organisations to adopt BIM (Building Information Modelling) methodology. We now continue our analysis with Part 2 of the standard, which deals specifically with the asset development phase, in other words, its design and construction.
ISO 19650-2 defines the specific requirements and processes for information management during this delivery phase, with the fundamental objective of ensuring that the information generated is reliable, well-structured and directly useful for the subsequent stages of operation and maintenance.
Thus, according to ISO 19650-2, the production of information during design and construction must meet two sets of key requirements: the EIR (Exchange Information Requirements), which are determined by the client for the project; and the AIR (or Asset Information Requirements), which are geared towards the future operation of the project. These requirements precisely determine what information is needed, when, who generates it, and in what format it should be delivered.
To implement these principles, the standard establishes the mandatory use of what is known as a Common Data Environment, in other words, a platform for managing versions, responsibilities and approvals. Furthermore, ISO 19650-2 structures the flow of information into a clear cycle of statuses: such as “work in progress”, or “shared” for interdisciplinary reviews, or “published” once verified and authorised, or finally “archived” as a historical record.
ISO 19650-2 also clearly establishes roles and responsibilities. From the “Appointing Party” (in other words, the client), which defines the BIM objectives and requirements, to the “Appointed Parties” (in other words, subcontractors and consultants), which generate the models.
But before starting to produce information, the standard requires meticulous planning, which takes the form of key documents such as the BIM Execution Plan, the Responsibility Matrix and the Delivery Plans, which precisely define the deliverables, the necessary levels of information and the deadlines.
The end result should be an “Asset Information Model” that brings together all as-built models, technical documentation, and equipment data in interoperable formats (such as IFC or COBie) and complies with the AIRs initially defined for the client.
The correct application of ISO 19650-2 brings tangible benefits: it reduces duplication of work and conflicts on site, improves coordination between disciplines, ensures consistent and auditable deliverables, facilitates a much smoother and more efficient transition to the asset operation phase, and drastically reduces information loss.
By Eduardo Hernández García, senior structural modeller in the Architecture Department at Amusement Logic
