Completed project04 / 10

Business system

Quotation system / one operating spine for estimate-to-job review

A quote and job-costing workbook designed and developed for a small field-service operator.

Live project viewQuotation workbook / Q-1048Margin controls passed
Quote value$18,740
Estimated cost$12,480
Gross margin33.4%
Site preparation16 hrs$3,840Material packageApproved$9,600Install + review24 hrs$5,300
Input lockedTax rule approvedVersion 07PDF ready

The challenge

Pricing inputs, quote details, labour assumptions, and job review live in separate files, with no dependable handoff between them.

01 / Approach
  1. Map the estimate-to-review workflow
  2. Separate controlled inputs from calculations
  3. Connect quote, cost, and margin views
  4. Add checks, exceptions, and usage notes
02 / Deliverables
  • Quote builder
  • Cost library
  • Job review
  • Change log
  • Protected calculations
  • Operating guide

What the finished solution gives the team

Visible logicImportant transformations and assumptions can be inspected.

Exception pathsUncertain inputs are surfaced instead of silently forced through.

Operable handoffThe owner receives a system they can understand and run.

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