The global market for Auditing Services was estimated at US $206.2 billion in 2025.* We’ll look at Lean
Six Sigma applications in auditing and finish with a video of the auditing process.

*Source: https://www.researchandmarkets.com/reports/5140428/auditing-services-global-strategic-
business

Lean Six Sigma Audit Considerations

In an article titled “10 Lean Six Sigma Audit Considerations” author Roman Kepczyk discusses how Lean
Six Sigma can improve audit quality, the client’s interactions with the firm, and helping grow the audit
practice.
The article covers
 Engagement Planning
 Engagement Measurement
 Client Planning
 Realistic Planning

 Appropriate Staffing
 Prioritized Field Processes
 Field Review
 Centralized Data Set
 Standardized Formats
 Client Delight
You can read the article here.

Lean Six Sigma Application to Improve the Duration of Audit Processes

In a case study titled “Quality Improvement of Audit Processes Duration by the Implementation of Lean
Six Sigma (LSS) in the Aviation Industry of UAE: A Case Study” authors Khazna Khamis Al Mentheri and
Muhammad Usman Tariq discuss minimizing the time spent on auditing, findings, and reporting through
the implementation of Lean Six Sigma approaches.
The case study includes:
 Audit Process Diagram
 Project Charter
 SIPOC
 Type of Audit Defects
 Pareto Chart of Audit Defects
 Current Analysis of Value-added and Non-Value-added Processes
 Future Analysis of Value-added and Non-Value-added Processes
 Fishbone Diagram of Process of Conducting Audit Takes a Long Time
 Risk Assessment Analysis
 Improved Audit Process Diagram
Use the following link to access the case study.

Using Six Sigma to Improve Internal Auditing Quality

In a study titled “The improving of Internal Auditing Quality Performance by the Use of Six Sigma
Methodology Standards: An Applied Study Conducted at the General Company for Ports of Iraq” authors
Ghaleb Saad Ghaleb and Alaa Fareed Abdulahad discuss the extent to which the compliance with Six
Sigma methodology would control the quality of internal auditing performance.

Click on the following link to download a copy of the study.

The Audit Process

Get an overview of the audit process in this video from Edspira.
You can watch the video here.