Early agreement sets expectations, not ownership
Uncertainty becomes expensive when it first surfaces beside a completed manuscript. Positions may already feel like career property. An early conversation makes anticipated work, disciplinary meaning and the provisional sequence visible. It cannot guarantee a final place because actual contributions have not yet occurred.
Begin with eligibility. Rank cannot qualify someone whose contribution falls short or erase someone who meets the rule. Next establish what first, middle and last positions mean in this field and article type. Never import an assumed universal hierarchy.
Name the ordering model explicitly
In many biomedical areas first position signals central execution and writing while last position signals senior leadership. Other fields commonly order alphabetically. Large collaborations may publish under a group name. Equal first or senior status can indicate equivalent contribution if the journal supports it. State rather than assume the model.
A contribution score looks objective but can force unlike activities onto an arbitrary scale. CRediT describes roles and intentionally does not assign rank. Prefer qualitative reasons tied to tangible outputs. If more than one model is plausible, record why the selected one fits the project and field.
Alphabetical order is not neutral when participants do not understand its career effect. Rotation across a paper series is fair only if every paper is reassessed from real work. A future place must not be exchanged for agreement today regardless of later contribution.
Review after data, drafting and revision
Update the contribution matrix after central data collection, the main analysis, the complete first draft and any extensive peer-review revision. Compare expected and delivered work. Illness or organisational change should be recorded factually; it is neither blame nor an automatic status decision.
Discuss a proposed change first with the affected person. Identify the contribution evidence, incomplete task and applied convention. Allow them to reveal work that was not visible to the group or correct a misunderstanding. Preserve old and new sequences with the reason rather than overwriting history.
Major revision can redistribute analysis, experiments and drafting. Minor copy-editing does not normally transform authorship. Describe scale and intellectual effect instead of counting tracked changes mechanically.
Build a route for unequal teams
Students, employees and contractors may find it hard to challenge a senior figure. A facilitator can collect contribution accounts before the highest-status person proposes an order. Name an independent ombuds or integrity contact early. Withholding data, references or employment opportunities is incompatible with free agreement.
Declare conflicts of interest. A project lead may coordinate discussion but should not decide their own rank alone. Where disagreement persists, preserve records and use institutional procedures. Do not invent retrospective tasks to support a preferred position.
Synchronise every representation before submission
Each author checks spelling, ORCID, affiliation, order, contribution statement, interests and final manuscript. The submission form, file and cover letter must agree. Corresponding-author duties are recorded separately from prestige or rank.
The eligibility guide comes first. The co-first workflow handles equivalence. More resources sit in the publication ethics hub. The single foundation route is the guide to documenting review evidence.
Start the first meeting with work packages rather than a completed list of names. Display expected outputs and uncertainties, invite each contributor to add missing activity, and only then discuss sequence. This order reduces the temptation to reshape contribution stories around a preferred byline.
Distinguish contribution to the wider programme from contribution to this paper. Someone may have established a valuable research programme without qualifying automatically for every article. Another person may lead analysis and drafting for one paper without leading the programme. Apply the test to the publication at hand.
Interdisciplinary teams should translate their conventions. Alphabetical order can signal equality in one field and be read as rank in another. Record both the selected model and its intended meaning. A publisher contribution statement can help prevent misinterpretation in later evaluation.