This is nonsense – just call it scale! There are an infinite number of degrees of scale.
In any event to make a near or fine scale model of something you need access to thespecifications and accurate drawings. You normally require permission for these or have to purchase them as per the RNLI or National Maritime Museum etc.
An exception to this was Norman Ough who drew up all his plans from personal observations and photos I believe. Consequently some of his drawinga are not 100% accurate.
Builder's models of ships are generally considered to be 'scale' and so they are in terms of dimensions. But they usually feature brass or silver plated fittings as that was the normal convention when they were made. Other detail such as windows or porthol;es was frequently drawn onto the model.
A further point is that from the moment a ship is completed it changes. Modifications will be carried out, some of them quite drastic d nd equipment such as weapoins or electronics will be changed or updated, paint schemes will often change too.
Models are often described as 'museim quality' whether they deserve it or not!
Just all adjectives in the end!
Colin