I wrote about a make sent me a email about their product during the first three days of the New Year,

But I came to think of it again, the reason was "the unclear manual".

There was no explanation and figure of the whole product, relationships between another tools, and setting for another tool.

In fact, almost of the manuals for engineers are unclear.

-----

There are a lot of people who become to get angry with the product which does not work, without reading the manual.

Especially, about the household electrical appliance such as vacuum cleaners, washing machines, and refrigerators, they are apt to do it.

Even if a maker blame them with saying "You are wrong because you don't read the manual”, the make is going to the end.

Indeed, human being hates machines, and moreover they hate reading manual for their history.

In spite of it, PC and Smartphone have spread generally. I think that this is a great achievement of the human history, called, "the miracle".

This is a win of the industrial engineers who have continued studying about refined GUIs that can provide services independently.

(To be continued)