This site measures and audits standards — but it had never explained them to anyone arriving from outside. These three pages are that layer: what ISO 19650 is, what an IFC file is and what LOD is, each with the answer in the first sentence, the Portuguese timetable and what we have already measured about the market.
The international standard that governs the information contract in BIM: the five parts, the three acronyms that matter (EIR, BEP, CDE) and what already applies in Portugal — DL 10/2024, RCM 89/2026 and the 2030 obligation.
The common language between all BIM applications (ISO 16739-1): the pipeline from authoring to archive, what an MVD is, and why a model that only opens in one application is not an archive.
The ladder from 100 to 500 that measures how much of the element is defined and reliable — and the answer to the question that matters: which LOD gets procured, for what use, and how far it is worth paying. ISO 19650's LOIN included.