> ## Documentation Index
> Fetch the complete documentation index at: https://support.cim.build/llms.txt
> Use this file to discover all available pages before exploring further.

# Document sets: drawing and document types

> Learn the four document set types in CIM Build — Tender, Addendum, Contract, and Revision — and how to organise uploads by revision set and discipline.

CIM Build structures your uploaded files around the lifecycle of a construction project. Rather than treating all uploads as a flat list of files, the platform uses four distinct document set types that reflect how construction documents actually progress — from initial tender through to post-contract revisions. Understanding these types helps you upload files correctly and ensures that CIM Build's analysis tools operate on the right data at the right stage.

## Document set types

Each upload you make is assigned to one of four document set types. The type you choose determines how CIM Build treats those files and which analysis tools can act on them.

| Type             | When to use                       | Description                                                                                                                             |
| ---------------- | --------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------- |
| **Tender Set**   | Start of the project              | Your initial tender drawings or documents. This is typically the first upload to a new project.                                         |
| **Addendum**     | After a tender set exists         | Addendum files issued after the tender set. Requires a tender set to already exist in the project.                                      |
| **Contract Set** | Issued-for-construction documents | The documents that form the basis of the construction contract. Setting the contract baseline uses these files as the reference point.  |
| **Revision**     | Post-contract updates             | Drawing revisions issued after the contract baseline has been set. CIM Build compares revisions against the baseline to detect changes. |

<Info>
  The upload interface adapts to your project's current state. For example, the **Addendum** option only becomes available once a Tender Set exists, and **Revision** requires a confirmed contract baseline.
</Info>

## Revision sets

Within each document set type, uploads are grouped into **revision sets** — named batches that keep related files together. When you upload, you either create a new revision set or add files to an existing one.

You choose the name when creating a revision set. Common conventions include:

* `Rev A`, `Rev B`, `Rev C` — for sequential drawing revisions
* `Addendum 01`, `Addendum 02` — for numbered addenda
* `IFC Issue 1` — for issued-for-construction packages

Revision sets appear as labelled groups in the **Documents** page, making it easy to understand which files belong to which issue.

## File types: drawings vs. documents

When you upload, you also choose the file type: **Drawings** or **Documents**. This distinction determines how CIM Build processes the files.

<CardGroup cols={2}>
  <Card title="Drawings" icon="pencil-ruler">
    PDF drawing sheets — architectural, structural, MEP, civil, and other discipline-specific drawings. CIM Build splits multi-page PDFs into individual drawing sheets, extracts drawing data, and applies discipline-based analysis.
  </Card>

  <Card title="Documents" icon="file-text">
    Specification documents, reports, schedules, and other non-drawing PDFs. CIM Build extracts individual requirements from specification documents and uses them to generate audit checks.
  </Card>
</CardGroup>

<Note>
  CIM Build will flag files that appear to be in the wrong category — for example, if you drag a specification PDF into the drawings upload zone. You can move misidentified files to the correct type before processing.
</Note>

## Disciplines

For drawing uploads, you assign a **discipline** to each file. Disciplines categorise files by trade or engineering system — for example Architectural, Structural, or MEP. CIM Build uses discipline assignments to:

* Organise drawings in the Documents page
* Scope clash analysis between specific disciplines
* Filter analysis results by trade

You assign disciplines using the dropdown in the file table during upload. To apply the same discipline to multiple files at once, select them and use the bulk action.

<Tip>
  Set up your project's disciplines in **Project Settings → Disciplines** before uploading. Custom discipline names are reflected throughout the platform.
</Tip>

## How the document lifecycle connects

The four document set types map directly to the key milestones in a construction project:

<Steps>
  <Step title="Upload a Tender Set">
    Start by uploading your initial tender drawings and documents as a Tender Set. This gives CIM Build its first view of the project scope.
  </Step>

  <Step title="Add Addenda (if applicable)">
    If addendum documents are issued during tender, upload them as Addendum files. They are tracked separately from the original tender set.
  </Step>

  <Step title="Upload the Contract Set">
    When issued-for-construction documents are available, upload them as a Contract Set. Review the files, resolve any conflicts, and then set the contract baseline.
  </Step>

  <Step title="Upload Revisions">
    As the project progresses and drawings are revised post-contract, upload each revision package. CIM Build compares each revision against the baseline and populates the Change Register.
  </Step>
</Steps>