Effective vs. Efficient – When it Comes to Defining Quality
Many people confuse effectiveness with efficiency. Organizations strive to be more efficient and in doing so, forget about how effective their actions really are. It should not come as a surprise that often the price for greater efficiency is less effectiveness. One of the first steps to take is to understand what efficiency and effectiveness mean. Judging by the unclear definitions below, I can understand the confusion.
Definitions:
Efficient
OxfordĀ dictionary:Ā The state or quality of being efficient: greater energy efficiency
Dictionary.com:Ā the ration of work done or energy developed by a machine, engine, etc., to the energy supplied to it, usually expressed as a percentage.
World English Dictionary: competence; effectiveness
Physics:Ā Efficient energy use ā useful work per quantity of energy
Economics:Ā economic efficiency ā a general term, capturing the amount of waste or other undesirable features
Other Science:Ā e.g. algorithmic efficiency ā optimizing the speed and memory requirements of a computer program
Engineering & Technology:Ā storage efficiency ā measure of effectiveness of computer data storage
Effective
OxfordĀ dictionary:Ā successful in producing a desired or intended result; effective solutions to environmental problems
Operative:Ā the agreements will be effective from November
Dictionary.com:Ā adequateĀ toĀ accomplishĀ aĀ purpose;Ā producingĀ theĀ intendedĀ or expectedĀ result;Ā effectiveĀ teachingĀ methods;Ā effectiveĀ steps towardĀ peace.
ActuallyĀ inĀ operationĀ orĀ inĀ force;Ā functioning:Ā TheĀ law becomesĀ effectiveĀ atĀ midnight.
ProducingĀ aĀ deepĀ orĀ vividĀ impression;Ā striking:Ā anĀ effective photograph.
PreparedĀ andĀ availableĀ forĀ service,Ā esp.Ā militaryĀ service.
World English Dictionary:Ā productive of or capable of producing a result
Things seem to be a bit clearer when we look at the opposite ofĀ EfficiencyĀ Ć
Inefficiency
TheĀ OxfordĀ dictionary states:
Adj. not achieving maximum productivity; wasting or failing to make the best use of time or resources; an old, inefficient factory; the government was both inefficient and corrupt.
What do the definitions tell us?
Oxford Dictionary further suggests: āā¦use effective when you want to describe something that produces a definite effect or result. Reserve the use of efficient for when you want to imply skill and economy of energy in producing the desired result.ā
Stephen R. CoveyĀ writes inĀ First Things First,Ā āEfficiency is getting more done in less time. It makes good sense. We get more done. We reduce or even eliminate waste. Weāre streamlined. Weāre faster. Weāre leveraged. The increase in productivity is incredible. But the underlying assumption is that āmoreā and āfasterā are better. Is that necessarily true? There is a vital difference between efficiency and effectiveness.ā
Peter R. ScoltesĀ inĀ The Leaderās HandbookĀ explains, āEffectiveness is doing the right thing. Efficiency is doing things right.ā
Russell Ackoff claims that it is better to do the right things poorly (inefficient effectiveness) than to do the wrong things well (efficient ineffectiveness).Ā Ā For example, we are becoming more and more efficient at building cars in a world that is less and less able to tolerate their existence.
I can be very efficient and increase the speed to complete my tasks I need to do today.Ā Ā I can get things done rapidly, but how effective have I been? Would I have achieved my goals? Isnāt there a need to take some time to think about what it is that I want to be efficient in? Should I create a list of priorities first? Should I prioritize my tasks into groups:Ā Important,Ā Urgent,Ā Not Important but UrgentĀ andĀ Not Urgent but ImportantĀ headings and then start with the tasks in the list āUrgent and Importantā?
The right question to ask is āIs this the right thing to do?āĀ Ā Once this question is answered with, āYes, it is effective to do thisā, you have arrived at the point where efficiency needs to be considered. Remember though that sometimes inefficiency is better that efficiency.
The Customer
It appears that we need to start with effectiveness first before we can even consider efficiency. Efficiency is more looking inwardly (into the bowls of the organization) while effectiveness looks outside the organization – the Customer (which is one of the four organisational stakeholders: Shareholders, Employees, Suppliers, & Customer.)
Effectiveness involves achieving your worthwhile goals that support your vision and mission. If an organizationās vision does not include the customer then efficiency is a waste of time.
Successful organizations demonstrate an understanding of what their customer wants and are willing to pay for. They improve their processes in order to not only meet the customersā needs, but to strive exceeding those needs.
KanoĀ Model
Basic Quality curve represents dissatisfaction ā providing basic quality is not enough to create Customer satisfaction.
Expected Quality curve represents what the Customer explicitly considers. Satisfaction increases as more expectations are met.
Exiting Quality curve represents satisfaction. Exiting Quality represents unexpected quality items, it excites the customer.
Figure 1 āĀ KanoĀ Model Perspective
Defining Quality
Traditionally, quality has been associated with the product or service that a customer receives.
In my last job, I was asked to create a quality framework. Before even starting with the strategy, I wanted to focus on the structure first, but even before that I insisted on a brainstorming session to define quality. As is the case with efficiency and effectiveness, āqualityā is another word that has as many meanings as there are people using it.Ā Ā However, I felt it was important to have a common understanding by defining āqualityā as an organization before we could map out a framework.
First, we came up with a set of paragraphs which grew longer and longer. We realized that defining quality was very difficult. We used some quotes as guidelines – below are some examples of Quality definitions/quotes:
- Ā Ā Ā Ā Is not a program, it is an approach to business.
- Ā Ā Ā Ā Is a collection of powerful tools and concepts that have proven to work.
- Ā Ā Ā Ā Is defined by the customer through their satisfaction.
- Ā Ā Ā Ā Includes continuous improvement and breakthrough events.
- Ā Ā Ā Ā Tools and techniques applicable in every aspect of the business.
- Ā Ā Ā Ā A process with the goal of identifying and meeting customer needs and improving service quality.
- Ā Ā Ā Ā WOW!
DemingĀ defined quality āconforming to requirementsā whileĀ JuranĀ originally defined it as āFitness for useā, but later changed it to āFitness for purposeā.
We realized that we needed the word āconsistentlyā in our definition. You can provide a consistent mediocre service, but that is preferable to service that is excellent one minute and extremely bad the next.
We also kept theĀ KanoĀ model in mind and concluded that meeting Customersā expectations was the key to satisfaction, loyalty and repurchase. Eventually, we defined quality as: āConsistently and efficiently meeting Customersā expectationsā. As an agreed definition of quality in the organization, we were now able to focus on the structure of the framework.
In the meantime, I have left that company and upon reflection, realize that this statement, although a good starting point for the company at the time, is not good enough. We did not realize the difference between efficiency and effectiveness. Efficiency has very little to do with the paying customer, it is effectiveness that is the key, and with that in mind I want to rephrase the definition of quality to: āConsistently and effectively exceeding Customersā expectations.ā
Also, just meeting Customersā expectations was not a high enough target, we need to set the bar higher and aim to exceed Customersā expectations. Lean Six Sigma can help to achieve that target as I have indicated on theĀ KanoĀ model above. However Lean Six Sigma will only bring an organization so far up the ladder. It is with creative management, through competitive pressure and by adding value that an organization will achieve the WOW- factor.
In my view, the successful marriage of Lean and Six Sigma into Lean Six Sigma is due to the fact that efficiency and effectiveness are both addressed in the marriage.
Comparison | 6 Sigma | Lean |
Goal | Improve Process Capability and Reduce Variation | Reduce lead times and process waste |
Focus | Process inputs | Process flow and waste |
Philosophy | Variability within specification is cost | Time in system and overcapacity is cost |
Tools | Statistical Analysis | Factor Physics |
Approach | DMAIC problem solving methodology | Value stream mapping and lean technologies |
Application | Production & Business Processes | Production + Business Processes |
Measure | DPMO (Defects per million opportunities) | Lead time |
Driver | CTQ (Critical to quality) | Value add |
Project select | Problem solving | Continuous Improvement |
Gains | Process accuracy and Quality (effectiveness) | Process efficiency and Delivery |
Figure 2 ā Comparison between Lean & Six Sigma
One of the reasons Lean Six Sigma has survived so long, in my opinion, is because of the overlap and ability to address most areas of importance in an organization. In the absence of a better methodology that goes even further than the point I indicated in theĀ KanoĀ model, most organizations would be extremely happy if they achieved the Lean Six Sigma standard of quality in theĀ KanoĀ model.
Georges Van Cauwenbergh has worked with several large international companies such as Hewlett Packard, SITEL and IBM and prior to that, was self-employed in the IT industry for more than 15 years. He became Senior Lean Six Sigma Black Belt in the āWorld Wide Process Innovation Teamā in IBM where he also worked for 1 year creating the Green Sigma TM methodology, which is now part of IBMās āSmarter Buildingsā. He received certification recently as a āTrainer in further educationā fromĀ MaynoothĀ UniversityĀ (Ireland) and is starting a Lean Six Sigma Master Black Belt.
Contact him atĀ Georgesvc@eircom.net