Présentation

A wiki is a web platform that enables multiple users to collaboratively create, edit, and arrange content through a browser. Simplicity and openness are central to wikis: anyone can often add or change pages without technical knowledge, and edits are usually logged for review or rollback. Common features - **Collaborative editing:** Multiple people can edit the same pages, occasionally concurrently. - **Edit history:** Every modification is recorded with a timestamp and the editor’s identity or IP address. - **Interlinking:** It’s easy to create links between pages, forming an interconnected knowledge base. - **Lightweight markup:** Formatting is usually handled by lightweight markup languages (e.g., WikiText or Markdown). - **Permission settings:** Some wikis are open to anyone; others limit edits to registered users or specific groups. - **Discussion pages:** Talk or discussion pages let contributors debate edits and organization. Typical uses - Crowd-sourced knowledge resources (e.g., Wikipedia) - Project docs and corporate knowledge repositories - Collaborative writing and shared note-taking - School and instructional projects Pros - **Fast collaboration:** Contributors can rapidly create and improve content. - **Openness:** Transparency through revision histories and discussions. - **Expandable:** Wikis expand easily as contributors add and organize content. Limitations - **Vandalism and false information:** Open contribution can result in deliberate or accidental misinformation. - **Inconsistent quality:** Entries may vary in accuracy, style, and completeness. - **Organizational issues:** Lack of structure or rules can lead to disorganization and conflicts. Notable example - **Wikipedia** — a well-known wiki operated by the Wikimedia Foundation and written by volunteers around the globe.