Leading navigation and breadcrumbs for the website

At the entrance to many buildings or large supermarkets, signs such as signposts are usually erected to indicate the direction of the user, and there will be more detailed navigation instructions when entering the interior. The relationship between the two is like the main navigation of the site and breadcrumbs, the former for the user to do a general introduction to the structure, and the latter is the details of the extension after the large architecture.

Breadcrumb navigation can clearly identify the user's current location and the link available for return, which to a large extent to solve the user's lost in the site. The user from the complex entrance to the final destination, breadcrumbs navigation is in a diminishing structure to present.

However, the most superior of this descending structure should not include "home page" this biggest and most miscellaneous entrance? If there is no "home" link in the breadcrumbs, is that a complete navigation structure?

Domestic four major portal sites, about the bread crumbs Navigation design, NetEase and Tencent are "home" link, and Sina and Sohu is not "home" and Link:

In the navigation structure that includes the "home page" link, it is divided into two kinds. One is such as NetEase in the "home" before there is the current channel home page link, this is the same as Sina and Sohu design is the same, and the other is like Tencent's most superior direct is "home."

such as NetEase's bread crumbs navigation design can highlight the current channel, but there is also another problem, that is, in the same navigation in the presence of two of the same link, providing more access at the same time make it easier to confuse users.

And in the breadcrumbs do not include the "home" design is strange, like a building from the doorway into a certain floor of a room, the results of the room when the notice is not the entrance of the building in the direction of the location, just instructions to the door of the floor.

This design has to be linked to the idea that this is a fragmented approach, the most likely to leave the user on the current channel, regardless of the method.

A full breadcrumbs should be started from the initial entrance, perhaps a lot of users of the initial entrance directly is a channel home, but it is undeniable that the decline in the breadcrumbs of the structure of the most superior should be the same as the bottom of the pyramid, and the home page design of domestic sites like the bottom of the pyramid, the information is huge and complex, The home page is the most crowded place in the whole site.

Do you have any better idea about the structure of breadcrumb navigation?