Model Element Responsibility Matrix (LOD and LOI)
$29 one time, proposed
Single-user license. Firm license $145, proposed.
Proposed one-time price in USD. Purchasing is not enabled; price and license terms remain subject to review.
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Model Element Responsibility Matrix (LOD and LOI)
Agree who models what, to what level of development and with what information, stage by stage.
$29 one time, proposed
Draft product page. Proposed one-time price in USD; purchasing is not enabled. A self-guided resource, not consulting, certification or professional advice.
Why it helps
Late arguments about who should have modeled an element, or why it carries no data, usually trace back to a responsibility matrix that was never written or never checked. This Excel workbook holds the matrix and checks it: each element gets one author role and a required level at the end of each of five stages, and named parameters get a due stage and responsible role. Built-in checks catch unknown roles, unknown levels, duplicates and levels that drop at a later stage.
What’s inside
- Model Element Responsibility Matrix (Excel, no macros)
- Start Here – Order of work, notes on levels of development and limits.
- Levels – Level labels with a rank number and original short descriptions.
- Stages and Roles – Five stage names and the authoring roles.
- Matrix – 24 example element rows with author role, five stage levels and information notes.
- Information – Named parameters with due stage and responsible role.
- Summary – Elements required per stage, elements per author role and problem counts.
- Matrix Guide (PDF and Markdown) – How to fill in, agree and maintain the matrix.
Who it’s for
- BIM managers preparing a kickoff with consultants.
- Project leads who need responsibilities written down before modeling starts.
- Small firms attaching a matrix to an execution plan.
Format, license and compatibility
Format
- Microsoft Excel workbook (.xlsx), no macros; PDF and Markdown guide.
License
Single-user license; firm license available. Full terms are in LICENSE.txt, included with the download.
Compatibility
Software-neutral. Revit is not required to open or use the workbook.
Availability
Questions
Does it include the text of a published LOD specification?
No. Level descriptions are original summaries. If your project adopts a published specification, enter its labels and cite it in your plan.
Does a level in the matrix set contractual liability?
No. Agreements between the parties govern responsibility. The matrix records what was agreed.
Can I use different stages or more levels?
You can rename the five stages and add level labels with your own ranks. The matrix uses exactly five stage columns.
Is the example a recommendation for my building type?
No. Example rows are synthetic and show the format only. One row is deliberately wrong so you can see a check fire.
Related guides
Free guide
LOD and LOI explained, and how to use them without overpromising
A clear explanation of LOD 100 to 400, the difference between level of development and level of detail, LOI and level of information need, and how to use them in a responsibility matrix.
Free guide
BIM execution plan basics, without the boilerplate
A plain-language introduction to BIM execution plans: purpose, typical sections, how a BEP relates to client requirements and ISO 19650, and how to keep it short and useful.
Delivery and terms
After release approval and checkout activation, digital downloads will be delivered by our checkout provider. Current preview builds are not for sale.
Prices are in US dollars (USD). Taxes may apply. Downloads that are defective or not as described are covered by our refund policy. Use of the resources is covered by our terms of service.
Offered by Nova Labs LLC. This product is independent and is not affiliated with or endorsed by Autodesk.