Code of Accounts

A hierarchical coding system that assigns a unique identifier to every element in the WBS, enabling clear reference, tracking, and control.

Key Points

  • Provides a unique, structured code for each WBS component.
  • Reflects the WBS hierarchy so a code shows where the element sits in the structure.
  • Supports traceability across scope, schedule, cost, and reporting systems.
  • Often alphanumeric and can be integrated with cost accounts and control processes.

Example

A project uses codes like 1.0, 1.1, 1.1.1 to identify WBS elements. For instance, 2.3.1 might represent "Mobile App UI - Design," ensuring everyone references the same component consistently in schedules, estimates, and status reports.

PMP Example Question

Which tool assigns unique identifiers to WBS elements to enable consistent tracking and cost reporting?

  1. Code of Accounts
  2. WBS Dictionary
  3. Organizational Breakdown Structure
  4. Cost Baseline

Correct Answer: A — Code of Accounts

Explanation: The Code of Accounts provides unique codes for WBS components. The WBS Dictionary describes each element, the OBS shows organizational hierarchy, and the cost baseline is the approved budget.

Project Management with AI: From Initiation to Closing

Build a practical project management process from initiation to closing with our Project Management: From Initiation to Closing with AI course. Learn how to move from informal project coordination to a structured, repeatable approach using PMBOK-aligned workflows, real examples, and professional templates.

This hands-on course follows a complete project lifecycle. You will learn how to write a project charter, define scope, build a work breakdown structure, develop a schedule, estimate costs, manage risks, engage stakeholders, execute the work, monitor performance, and close the project properly.

You will also learn how to use AI tools to accelerate project management work. The course includes reusable prompts, downloadable templates, assignments, and worked examples that show how project documents connect from one stage to the next.

The course is designed for professionals, team leads, coordinators, analysts, and new project managers who need practical skills they can apply at work. Enroll now and build the confidence to manage projects with structure, clarity, and control.

Explore the Course


Take Control of Project Performance!

HK School of Management helps you go beyond status reports and gut feelings. In this advanced course, you’ll master Earned Value Management (EVM) to objectively measure progress, forecast outcomes, and take corrective action with confidence. Learn how WBS quality drives performance, how control accounts really work, and how to use EAC, TCPI, and variance analysis to make smarter decisions—before projects drift off track. Built around real-world examples and hands-on exercises, this course gives you practical tools you can apply immediately. Backed by our 30-day money-back guarantee—low risk, high impact for serious project professionals.

Learn More