ROLE GUIDE 11 · EVIDENCE CONVERGENCE
Cost & Quantity ControlMatch completed work with its value so the company can bill and collect the right amount.
- Cost Control
- Office
- Drawings + Completed Work + Amounts
Based on an employee interview with Soyeon Kim (pseudonym). Original drawings, commercial records, and customer information are not included.
The people shown are fictional depictions created for privacy.
RECONCILE → CLAIM → COLLECT
Cost control confirms how much work is complete and how much should be paid
In plain language, the role checks whether the quantity on the drawing, the work actually completed, and the contract value all describe the same job.
That check becomes the amount billed to the customer, the amount paid to partners, the collection record, and the next-month forecast.
EVIDENCE CONVERGENCE
The quantities in the drawing must match the work completed on site
The role never bills from a drawing alone. It also confirms the work that is actually complete before deciding what can be billed this month.
DRAWING
Design information
Check which pipes and parts the design requires and in what quantities.- Computer-aided drawing (CAD)
- Material quantity list from the 3D design (5D BOM)
- Drawing submission and revision status
PROGRESS
Job progress information
Check what has actually been completed on site.- How much work is complete
- Status of each drawing request (DWR)
- Whether the work can be billed this month
BEFORE CALCULATING
Final amount check
Place design and job progress information side by side to find missing, duplicated, or different quantities.- Pipe and part quantities
- Drawing readiness
- Work actually completed
- Work that can be billed this month
- 01
Amount billed to the customer
Turn the verified work into a document that explains the amount being billed.
- 02
Amount paid to partners
Confirm the work completed by partner companies and calculate what should be paid.
- 03
Billing and collection check
Issue the official billing document and confirm whether the money has arrived.
- 04
Next-month estimate
Use the drawing and work schedule to estimate what can be billed next month.
BEGINNER'S GUIDE · 6 SCENES
From verified progress to billing and collection
Six simple scenes explain the job for first-time applicants. Each piece of workplace terminology is defined where it appears.
01 / 06A first-time applicant’s guide
Check how much work is complete
Start with the construction team’s update and confirm how far the job has progressed.
CASE · OVERDUE SETTLEMENT
For overdue items, first find which evidence is blocking progress
After taking over a new scope with several unresolved items, the employee separated them by the step where each had stopped.
- 01 · PROBLEM
Problem
Long-open billing items were distributed across several process stages.
- 02 · CHECK
Check
Each item was classified by drawing, update, progress, or billing-evidence status.
- 03 · ALIGN
Align
Construction and billing counterparts agreed on the missing evidence and processing order.
- 04 · RESULT
Result
The underlying causes were resolved one by one and a clearer tracking basis remained.
- Operational resultResolved root causes + clearer tracking basis
COLLABORATION MAP
Align the next action, not just the current data
The role translates different timing and terminology into one traceable basis.
- Design
- Use weekly meetings to check drawing submissions, pending updates, and next-month billing.
- Construction
- Confirm progress and installed scope through email and phone reviews.
- Cost Review Counterpart
- Align unresolved causes, recognition evidence, and billing timing.
- External Design / Trade Partners
- Confirm request history, subcontract progress, and quantity records.
- Headquarters Accounting
- Share invoice records, revenue, and collection status.
CAPABILITIES
Explain every number back to its source
Tools matter, but so do careful verification and proactive communication.
- 01
Excel and CAD
Organize settlement data and read quantity evidence from drawings.
- 02
Numerical precision
Recheck every digit and decimal so the result remains trustworthy.
- 03
Evidence tracing
Trace each amount to its drawing, quantity, and progress status.
- 04
Clear communication
Ask for the exact evidence needed, define timing, and share the result.
- 05
Active learning
Ask questions early and turn unfamiliar drawings and procedures into working knowledge.
GROWTH PATH
Grow from accurate records to proactive revenue control
As the scope expands, you learn to see the whole project flow and reduce delays before they occur.
- 01
Record accurately
Learn how drawing, quantity, and billing records connect and keep them complete.
- 02
Coordinate across teams
Understand Design and Construction milestones and align the action needed for billing.
- 03
Forecast and improve
Use accumulated data to identify delay risk early and improve recurring reviews.
FROM THE TEAM
Careful work connects directly to company performance
Soyeon Kim (pseudonym) · Cost Control & Design employee interview
“It is rewarding to see work checked down to every digit and decimal become part of the company’s revenue performance.”
“Do not expect perfection from day one. Ask questions, take ownership of small tasks, and let each experience build your confidence.”