COMMERCIAL SERVICES / WEBSITES + DIGITAL

Turn a complicated choice into a useful interaction.

Customers can struggle to understand pricing, options, or the value of a service. A custom tool makes the decision model explicit and gives the visitor a practical way to explore it.

FORCommercial Services
CAPABILITYWebsites + Digital
ENGAGEMENTProject based / scoped to your brief
01 / WHAT THE PRODUCT DELIVERS

Custom Calculator + Interactive Tool

Build a scoped interactive estimator, configurator or browser-based tool.

  • 01

    Calculation specification and assumptions

  • 02

    Responsive interactive interface

  • 03

    Validation and boundary test cases

  • 04

    Operating and change-control documentation

02 / THE WORKING METHOD

Built to create
a useful change.

The formula and interface are treated as one product: assumptions are shown where people make the decision, and edge cases are tested before release.

01 / DEFINE THE MODEL

Define the model

Document inputs, calculation rules, assumptions, rounding, limits, and the intended decision.

02 / BUILD THE INTERACTION

Build the interaction

Design responsive controls and result states that explain how the estimate or recommendation is produced.

03 / VERIFY THE CASES

Verify the cases

Test normal values, boundaries, invalid inputs, and any approved export or inquiry handoff.

03 / SCOPE BEFORE PRICE

Three levels.
One clearly defined brief.

The rate-card scope factors are shown below. Client complexity is applied separately.

Focused / ×1

Focused scope

One focused calculation model, one interface, and a defined set of result states.

Expanded / ×1.8

Expanded scope

A broader model with several scenarios, conditional inputs, and an agreed sharing or inquiry flow.

Complex / ×3.2

Complex scope

A complex tool with multiple models, approvals, and specifically scoped data or platform integrations.

04 / TUNE THE BRIEF

See how the scope
changes the investment.

A planning range using the same rate card as the full DOC N.I.L. calculator.

Client complexity and scope are separate factors. The written proposal confirms the level that matches your brief.

05 / THE ACCEPTANCE GATE

Know what good
looks like.

Validate calculation accuracy against approved examples, input usability, and completion of the intended next step.

ILLUSTRATIVE APPLICATION / NOT A CLIENT RESULT

ILLUSTRATIVE APPLICATION

A service company can give prospective clients a transparent planning estimate while showing which variables require a formal quote.

06 / PRICE GUARDS

Protect the scope.
Protect the result.

Outside this product unless agreed.

  • Unverified financial or technical guarantees
  • Paid APIs, platforms, and third-party data
  • Open-ended model changes or regulated professional advice

No hidden expansion.

The proposal confirms quantities, review rounds, locations, versions, and the service period. Additional work receives a written change scope before it starts.

8% G&A is additional. Third-party costs and applicable tax are confirmed separately. Estimates are planning ranges, not a booking or a guarantee of results.

Before we begin.

Can it provide a binding quote?

Only if the company approves the pricing rules and commercial terms for that purpose. A planning tool should clearly identify its limits.

Will the formulas be documented?

Yes. The agreed inputs, rules, rounding, exclusions, and test cases form part of the handoff.

07 / CONNECTED PRODUCTS

Build the next part.

Separate products. Connected when the brief calls for them.

GOOD WORK STARTS WITH A CLEAR BRIEF

Define the next move.
Then make it happen.