problem solving for improvements

Problem Solving for g Productivity Improvement:
Using the QC Story approach

Values
Techniques

Sajee Si ik i Ph.D.
S j Sirikrai, Ph D
Thammasat Business School
Thammasat University

Experiences
Attit d
Attitude
Keep walking
2

Overview
O
i
Problem Discovery
Problem Solving Process
Q
QC Tools: Problem Solving Techniques g q
The Plan-Do-Check-Act cycle:
Recognition of the Quality/Productivity
Improvement in Thailand

Do you think the y present situation is satisfactory?

Obstacles to the PDCA
Thammasat Business School

3

4

Problem = Actual - Expected
Problem Awareness
(Planned)
Problem Discovery Techniques

Manpower
Status Quo

Method
M th d

MURI
Irrationality สิ่งที่ผดธรรมชาติ
สงทผดธรรมชาต
ิ

Production Volume oduct o o u e
Inventory
y

Time

MURA
Inconsistency ความไมสมําเสมอ
ไ
่
MUDA
Waste ความสูญเปลา

Materials

Technique

Place

Facilities

Way of Thinking

Jigs & Tools
5

6

Thammasat Business School

Determining the Theme
Establishing th G l
E t bli hi the Goals

Over Production

Identifying a Time Frame

Excess Inventory
Transportation

Defining Roles & Responsibility g p y Ineffective Process
• Data oriented (Performance / Behavior)

Defect / Rework

y
Delay / Idle

• Observable
• Measurable

U ecessa y Mot o
Unnecessary Motion

• Describe the gap
7

8

Problem Solving Process
Define the problem
Collect data
Analyze the data y Generate alternatives
Evaluate the alternatives
Develop
De elop an action plan
Implement
Follow up
Thammasat Business School

QC Circle
Stratification
Small Group Activities
Flowchart & Graph
TPM Group
G
Check sheet
Pareto and 80/20 rules
Histogram
Control Charts
Cause-and-effect diagram
Scatter diagram: C
S tt di
Correlation analysis l ti l i

Stratification
S ifi i

Data Collection ll Stratification

For comparison purpose
By material: supplier, purchase date time