Artwork review effort model

What the calculator measures

The Artwork Approval Cycle Calculator models review effort for artwork approval as a sequence of rounds. It reports calendar duration per project, review hours per project, annual review hours, entered-rate annual cost, annual hours saved by one fewer round, and calendar duration with one fewer round. The inputs are review rounds per project, reviewers per round, calendar days per round, hours per reviewer per round, projects per year, and your loaded review hourly rate. The model is a planning estimate for review effort, not a schedule, certification, or market price. The Original worksheet method source links to this page's original arithmetic, units, assumptions and worked example; it is not external evidence of certification, legal status, or market pricing.

Setting rounds, reviewers and effort per round

Enter rounds as the number of sequential review passes in a project. Enter reviewers as the people reviewing within each round. Enter hours as the effort each reviewer spends per round. These three inputs drive review hours per project: rounds multiplied by reviewers multiplied by hours per reviewer. If you increase reviewers from five to six while keeping four rounds and one hour, per-project review hours rise from 20 to 24. That change affects labor and annual hours, but it does not change calendar duration because the model assumes reviewers within a round work in parallel.

Calendar days versus labor hours

Calendar days per round is separate from reviewer hours. The model computes calendar duration per project as rounds multiplied by calendar days per round. With four rounds at three days, the display is 12 days. Reviewers are assumed to work within each round in parallel, while rounds occur sequentially. Waiting and execution time can overlap, so the calendar figure is an elapsed-time estimate, not a detailed schedule. Changing days per round changes calendar duration only; it does not change review hours per project or annual review hours.

Annualizing with project volume

Projects per year scales the per-project review hours into annual review hours. At 20 hours per project and 20 projects, annual review hours are 400. If project volume doubles to 40, annual review hours double to 800 while per-project hours stay at 20. The annual hours saved by one fewer round also scales with project volume: it is reviewers multiplied by hours multiplied by projects. At five reviewers, one hour and 20 projects, the saved row is 100 hours regardless of whether the current rounds value is four or two.

Applying your loaded hourly rate

The rate field is your loaded review hourly rate, entered as a quote value. The entered-rate annual cost is annual review hours multiplied by that rate. With 400 annual hours and a synthetic entered rate of 30, the cost row is $12000.00. The default rate is 0, so the starting scenario shows $0.00 even though it reports 400 annual review hours. A zero rate does not mean the review labor has no cost. Changing the rate changes only the cost row, not hours or calendar duration.

Worked example: starting scenario

Using four rounds, five reviewers, three calendar days per round, one hour per reviewer per round, 20 projects per year, and a rate of 0, the calculator reports 12 days calendar duration per project, 20 review hours per project, 400 annual review hours, $0.00 entered-rate annual cost, 100 annual hours saved by one fewer round, and 9 days calendar duration with one fewer round. The 12 days comes from four sequential rounds at three days each. The 20 hours comes from four rounds, five parallel reviewers, and one hour each. The 400 annual hours comes from 20 hours across 20 projects.

Worked example: changed scenario

Changing rounds to 2 and the synthetic rate to 30, while keeping five reviewers, three days, one hour and 20 projects, produces 6 days calendar duration per project, 10 review hours per project, 200 annual review hours, $6000.00 entered-rate annual cost, 100 annual hours saved by one fewer round, and 3 days calendar duration with one fewer round. The lower rounds value halves per-project review hours and calendar duration compared with the starting scenario. The saved-hours row stays at 100 because it depends on reviewers, hours and projects, not on the current rounds value. The cost appears only because a nonzero rate is entered.

Interpreting one fewer round and edge cases

The one fewer round outputs are arithmetic comparisons. Annual hours saved by one fewer round uses reviewers, hours per reviewer per round and projects per year. Calendar duration with one fewer round uses rounds minus one multiplied by days per round. At rounds equal to 1, that calendar row displays 0 days, which is a boundary display, not a recommendation to run a zero-round approval process. Days per round and hours per reviewer can be fractional; rounds, reviewers and projects are integer counts. If days or hours are 0, the corresponding calendar or labor outputs fall to 0 while other rows still compute.

Questions about artwork review effort model