The order-to-delivery process for a manufacturing company, Company ABC, can be

summarized as follows

A quality issue faced by this company is late deliveries to customers.

(a) Select any three (3) suitable Lean Six Sigma tools from the following list that can be

used in Root Cause Analysis of the quality issue on late deliveries to customers:

Pareto Analysis

Process Mapping

Fishbone Diagram

Interrelationship Digraph

Spaghetti Diagram

With the aid of suitable illustrations, construct a roadmap examining how each Lean

Six Sigma tool can be used in sequence to identify potential root causes of this quality

issue.