what is actually means of Blue print ?

Answer 1

The original blue print was made using diazo printing methods which the paper was exposed to ammonia vapors which combined with the diazo salts and produced a blue printed image. Diazo printers could handle roll materials and large sizes which were before the day of large format printing.

Normally a blue print is a technical drawing of a home, object or design which is very accurate in the measurements used. Often for objects, this would combine three views: top, front and size (and any additional views necessary to make the object). Blue Print now refers to the item now, not so much the process.

Answer 2

A blueprint is a plan or technical drawing usually documenting an architecture or an engineering design. More generally, the term "blueprint" has come to be used to refer to any detailed plan.

The term "blueprint" was originally derived from the visual aspects of prints made using the contact printing process of cyanotype. It is cyanotype which produces the white lines on blue background which are characteristic of the traditional blueprint.

Answer 3

A blue print is a plan to do something!

Answer 4

A blue print is a pre-view draft of any concrete idea. Like an outline sketch of a plan.

Answer 5

A photographic print in white on a bright blue ground or blue on a white ground used especially for copying maps, mechanical drawings, and architects' plans

Answer 6

Blue print's aren't used much anymore....

http://en.wikipedia.org/wiki/Blueprint