Wikipedia:WikiProject Portals/Assessment

WikiProject Portals assesses quality and importance for portals and related pages.

Portal quality criteria
Portals are assessed based on how well they serve their purpose as entry points into their respective topic areas. High quality portals are:
 * 1) Useful. Provides:
 * 2) *(a) an introduction to the topic or topics the portal covers, which follows the guidelines
 * 3) *(b) a variety of sample content and navigational sections, as well as a bridge between reading and editing, per
 * 4) Broad in coverage.
 * 5) *(a) Each selected content section either has at least 20 items on random rotation, or is updated on at least a monthly basis.
 * 6) *(b) Content is representative of the entire topic or topics the portal covers, and not overly focused on specific aspects. Portals should present a worldwide view of the topic, unless the topic specifically relates to one or more countries or geographical areas.
 * 7) Up to date. Changes to article content are reflected in the portal content.
 * 8) Formatted appropriately. Follows the (draft) guidelines at Manual of Style/Portals.

Quality scale
A portal's quality assessment is generated from the class parameter in the WikiProject Portals project banner on its talk page:

Portal pages
The following values may be used for the class parameter to describe the quality of the portal:

Non-portal pages
For pages in the WikiProject's scope that are not portals, the following values can also be used for the class parameter:

Importance scale
A portal's importance assessment is generated from the importance parameter in the WikiProject Portals project banner on its talk page:

These importance ratings are used in the context of WikiProject Portals, and are primarily based on the scope of a portal's subject,  its popularity or page views, which may fluctuate over time.