Trade contracting
24 terms. Combine with other filters.
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Appointed party
A provider of information — a consultant, subcontractor or supplier — appointed by a lead appointed party, usually organised into a task team.
As-built drawings
Drawings, prepared from the contractor's marked-up site records, that show the work as actually constructed, including changes and field deviations from the design.
Clash detection
The automated checking of a federated model to find places where elements conflict physically, violate required clearances or conflict in time.
Deficiency list
A list, prepared at or near substantial performance, of work that is incomplete or does not conform to the contract documents and must be corrected before completion.
Federated model
A combined model assembled from separate discipline or package models, each of which remains owned and maintained by its author.
Pre-installation conference
A meeting held before a trade starts a complex or critical installation, bringing together the contractor, the installer, the consultant and often the manufacturer to confirm requirements, conditions and inspections.
Progress payment
A periodic payment, usually monthly, to the contractor for the value of work completed and materials supplied during the period, less holdback and previous payments.
Request for information (RFI)
A formal written question from the contractor to the design consultant asking for clarification of the contract documents — typically about design intent, an apparent omission or a conflict.
Shop drawing
A drawing, diagram or set of details prepared by a contractor, trade or supplier to show exactly how a specific part of the work will be fabricated and installed.
Submittal
Information the contractor provides to the consultant for review during construction — shop drawings, product data, samples and similar — to show how the work will meet the contract documents.
Trade contractor
A specialist firm that performs one part of the work — such as mechanical, electrical, masonry or curtain wall — under a contract with a general contractor, construction manager or owner.
Virtual design and construction (VDC)
A project management method that uses integrated, multidisciplinary models of the product (the facility), the organization and the process to plan and control a project against explicit, measurable objectives.
Warranty period
The period after handover — commonly one year in standard Canadian contracts — during which the contractor must correct defects in the work at its own cost, separate from longer manufacturer or extended warranties.
Going further
BIM Collaboration Format (BCF)
An open buildingSMART standard for exchanging model-based issues — comments, viewpoints and the affected elements — between BIM tools without exchanging the models themselves.
Construction adjudication
A fast, interim dispute-resolution process for construction payment disputes, in which an adjudicator issues a decision within weeks that is binding unless and until it is overturned by a court or arbitrator.
Construction lien
A statutory claim against an improved property (or against holdback funds for public property) that unpaid contractors, subcontractors and suppliers can register to secure payment for services or materials supplied.
Holdback
A percentage of each payment that the payer must retain under lien legislation — 10% in Ontario — until the period for registering construction liens has expired, as security for subcontractors and suppliers.
Last Planner System (LPS)
A lean, collaborative production-planning system in which the people who directly supervise the work plan it together, commit to what can be done, and measure how reliably they keep those commitments.
Level of development (LOD)
A numbered scale (LOD 100–400, plus 500 in some frameworks) describing how far a model element's geometry and information have been developed — and therefore how much other team members can rely on it.
Look-ahead schedule
A short-interval schedule, typically covering the next three to six weeks, that breaks upcoming work into detailed tasks so constraints can be identified and removed before the work starts.
Non-conformance report (NCR)
A formal record that identifies work or material not meeting the requirements of the contract documents, and tracks the proposed correction, its approval and its resolution.
Prompt payment
Legislation that sets mandatory deadlines for paying construction invoices down the contract chain and gives unpaid parties fast remedies, such as adjudication.
Statutory declaration
A sworn written statement by the contractor, provided with payment applications or at close-out, declaring that its subcontractors and suppliers have been paid and that there are no outstanding claims, except as listed.
Task information delivery plan (TIDP)
A task team's schedule of the information containers it will produce, with responsibilities and delivery dates, for one appointment.