Construction & Contracting// topic
Drawings, specs and construction document intelligence
In short
Sheet sets, specifications, submittals and RFIs treated as a data problem: what a model can reliably pull off a drawing or spec section, how two revisions get compared, and which parts still need a human signature.
9 pages
definitions
- Deferred submittals: the items the register has to hold openA deferred item is an obligation with a later trigger and a reviewer outside your contract. A register that files it under 'not started' has already lost it.definition7 min
- Order of precedence when the drawing and the specification conflictPrecedence is a contract term, not an industry constant. Until somebody reads the clause on this project, no conflict-detection tool can rank what it finds.definition6 min
- The submittal register: what it holds, and why it should be generatedThe register is the plan of obligations the spec book creates; the log is the history of what happened to each one. Confusing the two is why a register gets retyped every project and still misses items.definition9 min
- The title block is the metadata layer of a sheet setEvery document system built over a sheet set is really built over the title block. Some of its fields are dependable across consultants and some are not.definition7 min
- When a field markup becomes an as-built, and what it must carryA red line is not a record until it says which issue it was drawn on, when, by whom, why, and under what authority. Most sets are missing at least three of those.definition7 min
diagnostics
- Extraction is clean on the issued PDFs and useless on the scanned onesMeasure effective resolution at the smallest annotation, the skew angle across the sheet, and the contrast between linework and background. Those three explain almost every scan that will not read.diagnostic10 min
- The drawing comparison marks every sheet as changedWhen a comparison returns differences on every sheet, it is usually telling you it never managed to line the two files up. Three sheets you know did not change will settle it in about ten minutes.diagnostic11 min
- The extracted equipment schedule is one column out of alignmentValidate three known rows against the sheet by tag number rather than by position, then run the four post-extraction rules that catch a shift before anyone prices the schedule.diagnostic10 min
- The submittal log says approved and the inbox says otherwiseRun an ageing report by ball-in-court and put the last dated communication beside every open row. The rows where those two disagree are the drift, and the pattern names the cause.diagnostic10 min
Other topics in Construction & Contracting
See allPreconstruction, takeoff and estimatingWhat an estimating assistant can and cannot do to a drawing set — where automated quantity extraction is dependable, where it quietly is not, and how a number gets from takeoff into an estimate somebody is willing to sign.8 pagesBidding, prequalification and subcontractor managementFrom invitation to bid through prequalification, bid leveling and ongoing sub compliance — how the award decision gets recorded so the comparison is genuinely like for like and the file survives an audit.6 pages
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