AI Version Control in Medical Writing: Buyer Checklist

This checklist is for medical-writing leads assessing an AI authoring workflow and its document-management handoff. Assyro publishes it as an original procurement exercise. Its fictional events are not vendor test results or a universal regulatory approval procedure.

Agree what the version labels mean

Record the proposed product, configuration, document type, editor, review system, and output format. Identify the system that owns the approved record. A Word file, an authoring workspace, and a document repository may each have a version identifier; document how they relate.

Ask the vendor to distinguish a saved edit, a review candidate, an approved revision, and a released output. Some products track every save; others create formal versions at selected events. Either can be evaluated, provided the reviewer can identify the content and evidence behind the decision.

State your approval policy for the pilot. In this exercise, a material text change requires review of the changed candidate before it can be approved. These are agreed evaluation conditions. Your quality team determines the applicable process and any electronic-signature requirements for your actual use.

Use the source-traceability checklist to verify the evidence behind each revision, not only the revision label.

Version-control acceptance checklist

For each item, retain the input revision, action, resulting revision, evidence location, owner, and disposition. Use pass for demonstrated acceptance, fail for an observed violation, unknown when evidence is missing, and not applicable only with an approved scope reason.

Perform V01–V04 in the authoring/review workflow, then V05–V07 with the document owner, and V08 with the receiving regulatory-operations reviewer. If one system handles only part of the process, test the handoff to the system that owns the remaining step.

Use this fictional revision history in a demonstration

The document is MW-DEMO-01, a short report excerpt. Its fictional source, EVID-01 revision 1, records an assessment at Week 12 and explicitly states that the available data do not support a causal conclusion. This is a writing-control test, with no real product, study or patient data.

Create reviewed document D1 with this passage:

“

The assessment was performed at Week 12. The available data do not support a causal conclusion.

For the exercise, reviewer R1 has approved D1 against EVID-01 revision 1. Retain that exact combination as the baseline. The version IDs are illustrative labels, not a prescribed numbering convention.

Challenge two edits with the same starting point

Have writer W1 and reviewer R2 open working copies based on D1. W1 makes an editorial change to the first sentence: “The assessment took place at Week 12.” R2 adds an approved clarification to the second sentence: “The available data do not support a causal conclusion; further interpretation requires scientific review.”

Save W1's change first, then attempt to save R2's copy. A valid result could be a locked editing session, a rejected stale save, or a reconciliation view that retains both proposed changes. The requirement is preservation and an explicit decision, not a particular collaboration technology.

A silent overwrite fails V02. For example, R2's save must not erase W1's wording while reporting that both changes were retained. Inspect the actual resulting text and history; two recorded usernames alone do not prove that both contributions survived.

Resolve the edits into working revision D2, containing both accepted sentences. Record who resolved any conflict. If the vendor claims automatic merging, repeat the test with both people changing the same phrase to incompatible wording. The operator should be able to recognize the unresolved conflict and choose the appropriate text.

Regenerate after accepting a substantive reviewer correction

Ask the AI to improve D2's readability without changing its meaning. Keep EVID-01 revision 1 as the selected source. The qualification about causal interpretation is an accepted reviewer decision and must remain visible.

Use this deliberately defective generated suggestion as a challenge:

“

The Week 12 assessment confirmed a causal relationship.

It contradicts both the source and the accepted correction. The workflow should let the reviewer reject it and preserve the prior wording. A system may present a proposed change for review; that is different from silently replacing the accepted text and losing the decision history.

After rejection, save and reopen the document, then regenerate an unrelated passage. Verify that the rejected statement has not returned as accepted content. Retain the actual proposal, rejection, and reopened output. This checks persistence of the decision as well as the initial editing experience.

Test approval against a stale review session

Reviewer R1 opens D2 for approval. While that review session remains open, the document owner selects EVID-01 revision 2, an explicit source correction changing Week 12 to Week 10. The source still does not support a causal conclusion. The author creates D3 with Week 10 and retains the accepted qualification.

Now return to R1's older session and attempt approval. Under this exercise's policy, that action cannot approve D3 without R1 reviewing the material change. A product may block the action, require the new version to be opened, or retain a decision explicitly attached only to D2. Inspect which revision the resulting approval actually names.

The important failure is D3 appearing approved solely because someone approved the content they saw in D2. A banner about a newer version is insufficient if the action still records approval against the unseen content. Have the receiving reviewer inspect the record independently of the open editor.

This does not require deleting D1's historical approval. D1 was reviewed against the earlier evidence. The system should preserve that fact while making the source correction and current working revision clear. Historical approval, current-use suitability, and readiness to release D3 are separate questions.

Once R1 reviews D3, record the approval of D3 with its actual source basis. If your process has an additional release step, perform that separately. Do not assume “approved” and “released for the next regulatory operation” are interchangeable labels.

A completed acceptance record

The following outcomes illustrate how to classify the exercise. They are hypothetical observations, not findings about any named product.

Do not report a skipped restoration test as passed. Equally, a buyer choosing checkout should not fail a product merely because it lacks simultaneous editing. Keep optional interface preferences separate from protection against stale copies and overwritten decisions.

Recover a version without restoring an old approval

After completing the review exercise, request a working copy based on D1. The operator should be able to explain where that copy came from and how it differs from current D3. Under the agreed policy, it is a new candidate for use, not automatically approved because its text once appeared in D1.

The recovered copy contains Week 12, so the current source correction needs explicit disposition. A successful recovery proves that old content is retrievable; it does not establish that old content is appropriate for the current task. Preserve D1, D2, D3 and their decisions while evaluating the recovered copy.

If the platform restores files in place, require it to show how the prior state and approval meaning remain reconstructible. Inspect comments, source relationships and unresolved issues as well as prose. A restored paragraph without its review context may be only a partial recovery.

Repeat the permission check with a fictional account allowed to edit but not approve in this pilot. A visible approval button is not proof of permission enforcement; inspect the attempted action and final record. Use the ordinary application workflow supplied for the evaluation, and retain the result.

Compare the reviewed Word document with the PDF you will hand over

A version history can identify the approved document while the recipient still receives a different rendition. Extend the version-control pilot with a comparison exercise: inspect two document revisions, then inspect their PDF exports. The acceptance question is whether the reviewer can account for consequential differences in the delivered files—not whether the interface displays a change count.

Keep three decisions separate. A comparison identifies differences between selected inputs. A scientific review determines whether the statements are supported. An approval authorizes a particular revision under your process. A clean comparison report cannot make an unsupported statement correct, and accepting a change marker does not by itself approve a document.

Prepare a small packet with known differences

The following packet is an invented document-control exercise, unrelated to any real study, medicine or patient. The numbers are counts of documents, not clinical observations. Copy the excerpts into two Word documents, preserving the heading, table and footnote. Keep the source note outside both candidate documents so the reviewer must check it separately.

Source note CMP-S1, revision 1: “The training archive contains 24 report files. Eighteen files have a complete source-reference index; six require reconciliation. Completion of that index does not establish scientific review or approval.”

Source correction CMP-S1, revision 2: “A recount identifies 17 files with a complete source-reference index and seven requiring reconciliation. The total remains 24. This correction supersedes revision 1 for the current exercise. The limitation concerning scientific review and approval is unchanged.”

Create document CMP-A, based on source revision 1:

“

The archive contains 24 report files. Eighteen have a complete source-reference index; six require reconciliation. All reports are approved for regulatory use.

Place this footnote immediately below the table: “Index completion is a document-control status, not a scientific assessment.” Finish with a heading Reviewer actions and the sentence: “Review the reconciliation queue before releasing the training archive.”

Create CMP-B by making these changes to a copy of CMP-A:

• Change the narrative counts to 17 complete and seven requiring reconciliation.
• Change the table’s complete count to 17, but deliberately leave the reconciliation count at six and the total at 24.
• Move the entire Reviewer actions section above the table without changing its sentence.
• Delete the footnote.
• Leave “All reports are approved for regulatory use” unchanged.

These inputs create four different review problems: an intended source correction, an inconsistent table, a moved section, and a removed qualification. They also contain an unchanged unsupported approval claim. That last sentence is the control: a differences-only review may have no reason to flag it, even though the source never established approval.

Run the comparison appropriate to each file type

For a Word comparison, record the application version, original file, revised file and selected comparison options. Microsoft documents its legal-blackline comparison for desktop Word on Windows, with results normally placed in a separate document. Its guidance also distinguishes comparing two versions from combining multiple reviewers’ revisions. Use the option matching the job, preserve the input copies, and record how existing tracked changes were handled. These are documentation-based instructions, not an executed Word test. See Microsoft’s comparison guidance.

Export the two candidates to PDF using the proposed production route. Record which Word revision produced each PDF. Compare the PDFs in the exact tool and edition being evaluated, keeping the report and settings with the inputs. Do not infer that an authoring-system comparison also evaluated the exported rendition.

Adobe’s Acrobat Pro guidance describes different comparison settings for reflowing documents and scanned pages. It also notes that some difference categories are hidden by default in the report. Select the settings appropriate to the input and inspect the report filters before treating an absent marker as an absent difference. The cited help page was updated February 26, 2026; it does not establish the behavior of every PDF application. See Adobe’s PDF comparison instructions.

For this exercise, test both selectable-text PDFs and a clearly labeled scanned rendition if scanned documents are part of your intended use. Record an unsupported input type as a limitation. If scans are outside the agreed scope, document that exclusion instead of assigning a pass to a test you skipped. No Word, Acrobat or Assyro execution result is claimed here.

Record findings against the source, not just the redline

Use the following expected review as your answer key. It describes the authored packet, not what a named comparison engine detected.

The expected correction is therefore more than accepting every change in CMP-B. A defensible CMP-C keeps the corrected narrative, uses table counts 17, seven and 24, retains the footnote, and removes the unsupported approval claim. The moved section may remain above the table if the reviewer accepts the resulting organization. Record these as separate decisions so an accepted layout change cannot hide an unresolved data error.

For each finding, copy these fields into your review record: finding ID; original and revised file IDs; page/table/paragraph; source revision; observed difference; reviewer decision; corrected revision; owner; evidence location; result. Use pass, fail, unknown or not applicable with a reason. If you cannot establish which Word document generated the PDF, the rendition-identity check is unknown even when the text appears similar.

Repeat the handoff after correction

Export CMP-C, reopen the delivered PDF, and inspect the three table values and the two statements whose meaning mattered: the limitation is present and the unsupported approval is absent. Have the receiving reviewer locate the retained source correction and the decision record without relying on the demonstrator’s open session.

A missing difference marker has several possible explanations: the change may be outside the selected comparison scope, hidden by a report filter, or missed by the tool. Preserve the inputs and settings before investigating. If a setting caused the omission, rerun that case and inspect neighboring content with the same characteristics. If the tool still cannot expose a required change, record the coverage gap and the additional review needed. Do not reduce the acceptance criteria after seeing the result.

Use the regulatory document QC guide for a broader source-consistency exercise. Bring this narrower Word-to-PDF packet to an Assyro workflow evaluation when document review and handoff are in scope. Request a demonstration of the actual comparison configuration; this exercise does not establish that Assyro supplies a particular Word or PDF comparison engine.

Check the export and the product boundary

Export approved D3 in the contracted format, then make an unapproved D4 working edit. Ask the recipient to identify which file was released and which approval record belongs to it. Renaming either file should not change its identity or imply that D4 is approved.

Keep authoring document versions distinct from eCTD submission sequence identifiers. The receiving publishing process needs the intended document revision; a higher file number or later timestamp is not sufficient evidence of that choice.

For product discussions, start with Assyro's controlled document workflow, which describes version history, review and approval. Confirm the exact editor and AI-regeneration behavior in the proposed configuration. Certara CoAuthor also publicly lists version control, collaborative review and Word integration; those descriptions support asking for this demonstration, not awarding an automatic pass. Official pages were checked September 14, 2026; neither product was tested for this article.

Keep failed mandatory checks open until the corrected workflow is demonstrated. If an approval was attached to the wrong revision, inspect the version captured when the review began and when the decision was recorded. The evidence may point to stale-session handling, the approval record, or a system handoff. Fix the identified boundary and rerun the case rather than relying only on a warning to reviewers.

Bring the completed record to an Assyro workflow demo or the vendor under evaluation. The result should identify the reviewed text, the accepted changes, the source basis and the exact approved output. That gives your team a concrete way to judge version control beyond the presence of a history tab.

Before retiring an incumbent, the AI writing migration checklist tests whether the history can be reconstructed in the receiving workflow.

If Vault retains approvals, use the Veeva authoring-integration checklist to define source selection and draft-return behavior.