Definition Efficiency and Effectiveness - Differences

Q

quality person

#1
Hi,

Could someone please brief me with a clear example the difference between effectiveness and efficiency

Thanks,
Quality6
 
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Stijloor

Staff member
Super Moderator
#2
Re: Efficiency and effectiveness

In the context of a process (approach):

Effectiveness: The process meets the requirements. (It is doing and delivering what it was designed to do.)

Efficiency: The process accomplishes this with no waste. (Waste: no scrap, rework, sorting, non-value activities, etc.)

Stijloor.
 

Jim Wynne

Staff member
Admin
#3
Re: Efficiency and effectiveness

In the context of a process (approach):

Effectiveness: The process meets the requirements. (It is doing and delivering what it was designed to do.)

Efficiency: The process accomplishes this with no waste. (Waste: no scrap, rework, sorting, non-value activities, etc.)

Stijloor.
Personally, I think the definition of "effective" is (or should be) captured in the definition of "efficient," because it's not possible to be efficient without being effective. "Effective" depends on an operational definition, while "efficient" assumes that an act or task is accomplished with a minimum of wasted time, motion and expense.

I like the word "efficacy" because it's closer in meaning to what we're all looking for: the ability to perform as intended.
 
Q

quality person

#4
Re: Efficiency and effectiveness

Thank you sir. to recap, if the process is able to deliver the intended output with the input then its effective. Delivering the output with minimal resources is efficient. Kindly guide me if further understanding is required.
 

Jen Kirley

Quality and Auditing Expert
Staff member
Admin
#5
Re: Efficiency and effectiveness

Thank you sir. to recap, if the process is able to deliver the intended output with the input then its effective. Delivering the output with minimal resources is efficient. Kindly guide me if further understanding is required.
I think that sums it up well, but I want to add a cautionary note.

Too often, modern management interprets "minimum resources" as an imperative to cut resources. That may not result in long term effectiveness. It may be better to clarify that efficiency means to achieve intended output with intended (or designed) input. That means a minimum of delays, rework, and/or unexpected interventions.

I hope I haven't made this subject too complex, but it is too easy to boil down a subject into a slogan that may be misconstrued.
 
W

wny4ever

#8
Re: Efficiency and effectiveness

Effectiveness = extent to which planned activities are realized and planned results achieved
Example question = Does process meet quality objectives?

Efficiency = relationship between the result achieved and the resources used
Example question = Are the financial goals/objectives of process met?
 
N

Nadeem A.

#9
Within the project management context, and considering the project constraints (scope, time, cost, quality):

Efficiency: is associated with time and speed
Effectiveness: is associated with quality and accuracy
 

Jim Wynne

Staff member
Admin
#10
Within the project management context, and considering the project constraints (scope, time, cost, quality):

Efficiency: is associated with time and speed
Effectiveness: is associated with quality and accuracy
Efficiency: is associated with time and speed and quality and accuracy.
Effectiveness: is associated with time and speed and quality and accuracy
 
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