There was once 2 cases of companies R&D method that was being evaluated, both achieved its purpose, but yet varies in the cost of coming out with the solution.
Example 1
There was a series of complaints by the customers that the milk carton was empty, and was believe that while the manufacturers were filing the content of the milk carbon, the machine might have skipped some and yet all the cartons are pack for delivery.
So it became a problem after awhile, as customers weren't happy, so a solution had to be made to solve this issue. To open up every box to check at the end of the production line will be costly, and not efficient at all, and there is no other way to tell whether the carton is fill up or not, unless opened at the time.
So researchers from Japan took a few years, spending billions of dollars to finally come out with a solution - a machine that can scan through the content of the box, and remove empty boxes and only move the filled ones into the packing line. Amazing!
Well, while Japan has loads and tons of money to come out with a research methods for this problem...
... a local production house in Malaysia, had come out with another way that does achieve this problem, and it only cost RM 30.
Really, and seriously...
What was need...
1. standing fan x2 = RM25
2. big basket x1 = RM5
All they did was, place the fan on the right side of the production belt, and the basket on the left. And what is does is that, everytime an empty box pass by the fan, it will be blown into the basket, and the filled one continue into the packing line.
Smart?
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Example 2
During the early days, when NASA begin to send people to the moon, and needed reports of finding, and due to the zero gravity issue, it was impossible to use a pen in space, so it was quite troublesome for astronauts to write and note things down.
So NASA spent, billions of dollars, and finally came out with a pen, that can write on any surface, and of course also works in a zero gravity environment.
Well, on the other hand...
... Someone came out with a even more cost effective solution, that only cost RM0.50.
I am super serious...
Really...
He brought a pencil into space. And wrote notes using that pencil.
Genius!
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This is what I think... Well indeed all does achieve the ultimate purpose and goal of what it is suppose to achieve. And the cost was way way way big of a difference.
But I would say... Style don't come cheap. =P
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