Wikipedia:WikiProject Cetaceans/Assessment

A featured article exemplifies our very best work and features professional standards of writing and presentation. In addition to meeting the requirements for all Wikipedia articles, it has the following attributes.

1. It is—
   • (a) well-written: its prose is engaging, even brilliant, and of a professional standard;
   • (b) comprehensive: it neglects no major facts or details and places the subject in context;
   • (c) factually accurate: claims are verifiable against reliable sources, accurately represent the relevant body of published knowledge, and are supported with specific evidence and external citations; this requires a "References" section in which sources are listed, complemented by inline citations where appropriate;
   • (d) neutral: it presents views fairly and without bias; and
   • (e) stable: it is not subject to ongoing edit wars and its content does not change significantly from day to day, except in response to the featured article process.
2. It follows the style guidelines, including the provision of:
   • (a) a lead—a concise lead section that summarizes the topic and prepares the reader for the detail in the subsequent sections;
   • (b) appropriate structure—a system of hierarchical section headings and a substantial but not overwhelming table of contents; and
   • (c) consistent citations—where required by Criterion 1c, consistently formatted inline citations using either footnotes^[1] or Harvard referencing (Smith 2007, p. 1) (see citing sources for suggestions on formatting references; for articles with footnotes, the meta:cite format is recommended).
3. Images. It has images that follow the image use policies and other media where appropriate, with succinct captions and acceptable copyright status. Non-free images or media must satisfy the criteria for inclusion of non-free content and be labeled accordingly.
4. Length. It stays focused on the main topic without going into unnecessary detail (see summary style).

1. Prose. It features professional standards of writing.
2. Lead. It has an engaging lead section that introduces the subject, and defines the scope and inclusion criteria of the list.
3. Comprehensiveness. It comprehensively covers the defined scope, providing a complete set of items where practical, or otherwise at least all of the major items; where appropriate, it has annotations that provide useful and appropriate information about entries.
4. Structure. It is easy to navigate, and includes—where helpful—section headings and table sort facilities.
5. Style. It complies with the Manual of Style and its supplementary pages.
6. Visual appeal. It makes suitable use of text layout, formatting, tables, and colour; it has images if they are appropriate to the subject, with succinct captions or "alt" text; and it has a minimal proportion of red links.
7. Stability. It is not the subject of ongoing edit wars and its content does not change significantly from day to day, except in response to the featured list process.

1. Well-written:

   (a) the prose is clear and the spelling and grammar are correct; and

   (b) it complies with the manual of style guidelines for lead sections, layout, jargon, words to avoid, fiction, and list incorporation.

2. Factually accurate and verifiable:

   (a) it provides references to all sources of information, and at minimum contains a section dedicated to the attribution of those sources in accordance with the guide to layout;

   (b) at minimum, it provides in-line citations from reliable sources for direct quotations, statistics, published opinion, counter-intuitive or controversial statements that are challenged or likely to be challenged, and contentious material relating to living persons; and

   (c) it contains no original research.

3. Broad in its coverage:

   (a) it addresses the main aspects of the topic; and

   (b) it stays focused on the topic without going into unnecessary detail (see summary style).

4. Neutral: it represents viewpoints fairly and without bias.
5. Stable: it does not change significantly from day-to-day because of an ongoing edit war or content dispute.
6. Illustrated, if possible, by images:

   (a) images are tagged with their copyright status, and valid fair use rationales are provided for non-free content; and

   (b) images are relevant to the topic, and have suitable captions.

1. The article is suitably referenced, with inline citations where necessary. It has reliable sources, and any important or controversial material which is likely to be challenged is cited. The use of citation templates such as {{cite web}} is not required, but the use of <ref></ref> tags is encouraged.
2. The article reasonably covers the topic, and does not contain obvious omissions or inaccuracies. It contains a large proportion of the material necessary for an A-Class article, although some sections may need expansion, and some less important topics may be missing.
3. The article has a defined structure. Content should be organized into groups of related material, including a lead section and all the sections that can reasonably be included in an article of its kind.
4. The article is reasonably well-written. The prose contains no major grammatical errors and flows sensibly, but it certainly need not be "brilliant". The Manual of Style need not be followed rigorously.
5. The article contains supporting materials where appropriate. Illustrations are encouraged, though not required. Diagrams and an infobox etc. should be included where they are relevant and useful to the content.
6. The article presents its content in an appropriately accessible way. It is written with as broad an audience in mind as possible. Although Wikipedia is more than just a general encyclopedia, the article should not assume unnecessary technical background and technical terms should be explained or avoided where possible.