3. Literature on software industry indicates that software firms start
focusing on TQM since 1990 as the best managerial philosophy of
building self capacity and producing software with high quality, and to be
able to compete locally and internationally (Kan 1995).
The challenges in Quality Technology and Management are increasing
yearly.
In the 1990s, all organizations faced the issues of improving product and
service quality and enhance innovation.
The discipline of quality has evolved and expanded rapidly from
inspection to company-wide quality management.
3
4. Three basic principles of TQM must be considered in order to achieve
excellence in software development.
Making Improvement : every person and every team has a common system for
solving problems.
Satisfying Customers : Every team in every department follows a common
system for working together to satisfy customers, employ new tools to
indentify customers needs and requirements.
Advancing the Organizations : Every manager and every team share a
common understanding of their organization’s goals and strategies.
4
5. Study conducted by Kan and Baisli (1994), aimed to discuss quality of
software in the context of TQM, the most important elements that
researchers studied are the following:
Customer Focus in software Development
Process Improvement
Human Side of quality that includes factors such as total participation,
management commitment and leadership, employee-empowerment and other
social and cultural factors.
Focus on data, measurement, and model in software development.
5
10. Many studies suggested that enhancing customer satisfaction is the bottom
line of business success:
Ever-increasing market competition
Only way to retain the Customers
To expand market share
To gain more profit
To enhance/ improve product satisfaction level
eg. 90% to 95%
Studies show that it is five times more costly to recruit a new customer than it
is to keep an old customer:
Why is it costly?
10
11. It is fact that dissatisfied customers tell
7 to 20 people about their experiences
While satisfied customers tell
Only 3 to 5 people
11
13. Total customer satisfaction is the primary quality issue.
Customers are the only people who can determine total customer satisfaction.
To achieve total customer satisfaction, the organization must know the
customer, itself, its product, and its competition
13
16. • Quality costs are real and estimated at:
– 25% of costs in manufacturing
– 35% of costs in service industry
• Quality costs can be categorised to enable better understanding
16
17. Quality is to continuously satisfy customers’ expectations
Total quality – to achieve quality at low cost
TQM –to achieve total quality through everybody’s participation
Concept of total quality
Sum of failure costs, inspection/appraisal costs and prevention costs
Failure costs- Internal failure cost, external failure costs
In relation to TQM-level of quality improved by quality management cost,
consist of
Preventive Quality Cost – Prevent Quality defects and problems cropping up.
Aim of preventive activities – find and control the causes of quality defects and problems
Inspection/ Appraisal Cost- Aim is to find defects which have already occurred.
17
18. Cost of Quality is recognised as a major tool used to quantify the
qualitative improvements of an organisation during the TQM
Implementation Process.
18
19. Both Preventive and Appraisal Costs are known as the Costs of
Conformance.
i.e. : The cost of doing things right the first time.
Both Internal and External Failure Costs are known as the Costs of
Non-Conformance.
i.e. : The cost incurred as a result of things not being done right the first time.
19
20. Quality planning costs
costs of developing and
implementing quality management
program
Product-design costs
costs of designing products with
quality characteristics
Process costs
costs expended to make sure
productive process conforms to
quality specifications
Training costs
costs of developing and putting on
quality training programs for employees
and management
Information costs
costs of acquiring and maintaining data
related to quality, and development of
reports on quality performance
20
22. Inspection and testing
costs of testing and inspecting materials, parts, and product at various stages and
at the end of a process
Test equipment costs
costs of maintaining equipment used in testing quality characteristics of products
Operator costs
costs of time spent by operators to gather data for testing product quality, to make
equipment adjustments to maintain quality, and to stop work to assess quality
22
24. Scrap costs
costs of poor-quality
products that must be
discarded, including
labor, material, and
indirect costs
Rework costs
costs of fixing defective
products to conform to
quality specifications
Process failure costs
costs of determining why
production process is
producing poor-quality
products
Process downtime
costs
costs of shutting down
productive process to fix
problem
Price-downgrading
costs
costs of discounting poor-
quality products—that is,
selling products as
“seconds”
24
25. Customer complaint costs
costs of investigating and satisfactorily
responding to a customer complaint resulting
from a poor-quality product
Product return costs
costs of handling and replacing poor-quality
products returned by customer
Warranty claims costs
costs of complying with product warranties
Product liability costs
litigation costs resulting from
product liability and customer
injury
Lost sales costs
costs incurred because customers
are dissatisfied with poor quality
products and do not make
additional purchases
25
28. Customers will seek
out the highest quality
product.
Improved quality that exceeds
customer expectations will
generate more revenues that
exceed the cost of quality.
Therefore,
quality is
“free”.
28
29. W. Edwards Deming proposed that
improving quality reduces cost and
improves profitability.
Quality can be and should be
improved continuously.
Quality
TotalRevenues&Costs
Revenues
Cost
Max Profit
Max Quality
29
30. Profit is maximized at the
optimum quality level.
The optimum quality level is always achieved
before maximum attainable profit is reached.
Quality
TotalRevenues&Costs
Revenues
Cost
Max Profit
Optimum Quality
30
31. The traditional method is to record costs as they arise (e.g. wage costs,
material etc.)or are thought to arise (e.g. depreciations).
The method is as follows.
Let Pjt stand for the ordinary financial result of company j at time t, and
let Pjt/Nj stand for the ordinary financial result per employee.
Nj denotes the number of employees, converted to full-time employees, in company j.
Assume also that there are m comparable firms competing in the same
industry/market.
Now let the m competing firms be ranked as follows:
P1t/N1<P2t/N2<…<Pmt/Nm
Based on this ranking, the lower limit of company j’s total quality costs at
time t can now be calculated:
Cjt=(Pmt/Nm–Pjt/Nj)×Nj=(Nj /Nm)×Pmt–Pjt (14.2)
The limit is a lower limit in the short term.
31
32. We call this lower limit because the method build on the comparison
with the best company i.e
the company which has achieved the highest profits per employee.
This company is used as a benchmark for the other firms being
compared, a consequence of this approach being that its lower limit of
quality costs is zero.
32
34. There is famous quotation:
We can not become what we want to be by remaining what we are. Shift from
the original status is the key for success.
So,
If a company is loosing the market (or) customers, the company has to realize
that somebody is doing well ahead.
So it is necessary to find out the ways to get their competitor’s level and have
to beat them to retain the market and customers.
Benchmarking is ideal tool to achieve this.
34
35. Benchmarking is a systematic and continuous measurement process;
A process of continuously measuring and comparing an organization’s
business processes against business process leaders anywhere in the
world to gain information which will help the organization take action
to improve its performance.
35
36. What is our
Performance level?
How do we do it?
What are others’
Performance levels?
How did they get there?
Breakthrough
Performance
Creative
Adaptation
36
38. Plan
Managers must evaluate the current process
make plans based on any problems they find
document all current procedures, collect data, and identify problems.
Do
During the implementation process managers should document all
changes made and collect data for evaluation.
Study
The third step is to study the data collected in the previous phase.
The data are evaluated to see whether the plan is achieving the goals
established in the plan phase.
Act
to act on the basis of the results of the 3 phases.
The best way to accomplish this is to communicate the results to other
members in the company and then implement the new procedure if it
has been successful.
the next step is to plan again. After we have acted.
CONTINUE EVALUATING THE PROCESS, PLANNING, AND REPEATING THE
CYCLE AGAIN.
38
39. Decide what to benchmark
Understand current performance
Plan
Study others
Learn from the data
Use the findings
39
40. Decide what to benchmark
Think about the critical success factors and the mission.
Which processes are causing the most trouble?
Which processes contribute most to customer satisfaction and which are not
performing up to expectations?
What are the competitive pressures impacting the organization the most?
What processes have the most potential for differentiating our organization from
the competition?
40
41. Critical Success Factors (CSFs) Are the Key Indicators That Inform
Us That a Particular Task, Activity, Process, Event, Function,
Service or Endeavour Is Successful
CSF’s Are a Feature of All Levels of Business Activity; From the
Company As a Whole Down to the Activities of Individuals in It
41
42. Adopt, Adapt, and Advance: A well-designed performance measurement and
benchmark system is essential, but there are other critical success factors:
Senior management support;
Benchmarking training for the project team;
Useful information technology systems;
Cultural practices that encourage learning;
Resource dedication - especially in the form of time, funding, and useful
equipment.
42
44. People are the key to quality.
If their actions and reactions become quality related,
then expensive failures and the accumulation of hidden costs may be reduced
to an acceptable minimum or even prevented altogether.
Total Quality is a holistic concept which requires quality motivation of
all people in an organization towards a common goal.
People alone are the creators of quality- People Makes Quality.
Belief:
People are well motivated then they can overcome any difficulties they
experience in solving their problem.
44
45. Clear Leadership and vision are considered to be the most important
critical success factors of TQM.
Quality Motivation and Suggestion for improvement
In the TQM leadership model the aim of the Act phase is to create an
environment which motivates people for quality and which encourages them to
participate in making suggestions about quality improvement.
45
49. Some people believes that there is no basis for motivation
Because its only the frame of mind of an individual
It is true that – to deal with people’s minds and treat them fairly in order to
motivate them,
Nevertheless its difficult to believe that there is no basis for the development
of motivation theory.
49
52. Books
Fundamentals of Total Quality Management- By Jens J.Dahlgaard
Total Quality Management in Software Development Process
Eldon Y. Li, California Polytechnic State University, USA
A core value model for implementing total quality management in small
organisations
By Jonas Hansson and Bengt Klefsjo¨
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