Test the review process before commissioning the portal
A client portal is attractive when files and approvals are scattered. It can also make a confused process more expensive. If nobody can identify who accepts a deliverable, another place to press “approve” will not settle the issue.
Begin by describing one review exchange using the tools you already have. Identify the material, the authorised reviewer, the decision required and the record that will preserve it. The experiment should be modest enough to try without moving every client.
Look for the constraint software would remove
If the team can manage the exchange reliably with a maintained folder and decision record, a full portal may be premature. The immediate work could be clearer instructions or a better index. That finding is worthwhile even if it reduces the original development idea.
If clients repeatedly see the wrong material because access cannot be represented appropriately, or staff cannot preserve a usable relationship between revisions and decisions, there may be a stronger case for a focused application. The important question is the limitation encountered, not whether portals are fashionable.
Include the cost of keeping it useful
A portal introduces account administration, recovery, access changes and dependencies. It also needs content ownership: someone must close old projects and decide which material stays available. Those are operating duties, not one-time design details.
Estimate the effort using the intended number of projects and roles. A small team may prefer a narrower first function whose administration it can sustain.
Define what would justify the next phase
For a fictional trial, agree that the current process is adequate if a substitute reviewer can find the correct material and decision history without staff reconstruction. If repeated failures persist despite clear instructions, record their causes. A portal proposal can then target those causes rather than reproduce every feature in a generic product demonstration.
The trial is not proof that the existing tools satisfy every future requirement. It answers a bounded decision about the next investment.
Client workspaces explains a focused development scope. Prepare the first conversation if you are still deciding whether the difficulty is the process or its tools.