Otlet.cloud: Difference between revisions
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{{Infobox | {{Infobox | ||
| name = otlet.cloud | | name = otlet.cloud | ||
| image = Otlet | | image = Paul Otlet.jpg | ||
| caption = Paul Otlet, after https://fr.m.wikipedia.org/wiki/Fichier:Paul_Otlet_%C3%A0_son_bureau.jpg Paul Otlet à son bureau | | caption = Paul Otlet, after [https://fr.m.wikipedia.org/wiki/Fichier:Paul_Otlet_%C3%A0_son_bureau.jpg Paul Otlet à son bureau] | ||
| 1 url = https://otlet.cloud | | 1 url = https://otlet.cloud | ||
| 2 type = UX research tools suite | | 2 type = UX research tools suite | ||
Revision as of 21:27, 11 October 2025
| otlet.cloud | |
|---|---|
 Paul Otlet, after Paul Otlet à son bureau | |
| url | https://otlet.cloud |
| type | UX research tools suite |
| owner | Michel Vuijlsteke |
| launched | 1 October 2025 |
| current status | Online |
otlet.cloud is a self-hosted suite of UX research tools created by Michel Vuijlsteke for personal use, with access extended to invited collaborators (including contributors to projects at Ghent University). The platform supports multiple research methods—primarily Card sorting and Tree testing—with built-in analysis and export features.[1][2] The project is named in homage to Belgian information pioneer Paul Otlet; his portrait is used as the site’s logo and on the home page.[3]
History
Otlet.cloud was prototyped over several evenings in late September 2025 and went online on 1 October 2025.[2] Originally not intended for wider use, it was rapidly hardened for a real-world online card sort when a project opportunity arose.[4] Ongoing development adds additional research tools.[5]
Overview
Studies are organized into projects with optional collaboration. The interface supports drag-and-drop, full keyboard navigation, and mobile/touch interaction.[1]
Study types
- Card sorting
Open, closed, and hybrid sorts; optional “I don’t know” bucket; rich-text cards (descriptions/images); bulk import from CSV/JSON/Markdown.[1]
- Tree testing
Hierarchical navigation structures with task-based findability tests; multiple correct destinations per task; path tracking and click analytics; structure import from Markdown/CSV/HTML/JSON.[1]
Analysis and visualization
Card sorting: similarity matrices (Jaccard), hierarchical clustering (Ward/average linkage) with interactive dendrogram and cut-line, category-agreement reporting, and MDS coordinates.[1]
Tree testing: success / eventual success / failure breakdowns, path and time analysis, node-popularity metrics. Exports include raw data (CSV/JSON), similarity matrices, analysis results, and PNG/SVG visualization exports.[1]
Technology
Backend: Django (4.2) with Django REST Framework; SQLite/PostgreSQL; analysis with NumPy, SciPy, and scikit-learn; visualization via Matplotlib (and Seaborn as needed).[1]
Frontend: Vue 3 with Vue Router, Pinia, Bootstrap 5, Vue I18n, D3.js, built with Vite.[1]
Deployment: Docker Compose and conventional Gunicorn/Nginx setups; environment-variable configuration for production.[1]
Accessibility
Implements practices aligned with WCAG 2.2 AA (focus management, screen-reader semantics, keyboard shortcuts, reduced-motion preference, high-contrast modes). The UI is responsive across desktop, tablet, and mobile.[1]
Access and privacy
The site is publicly reachable at https://otlet.cloud . Study participation is open to the public and is completely anonymous; admin rights are by invitation and on a per-project basis. No personal data is gathered or stored.[3][4]
Relationship to other projects
Otlet.cloud is one of several self-hosted or operator-run web projects associated with Michel Vuijlsteke and the yusupov.cloud VPS ecosystem, alongside domains such as moosedept.org, blaffeture.net, tsuk.org, genea.cloud, and vuijlsteke.net.[2]
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 Otlet – UX Research Tools Suite (README). Project documentation, 2025.
- ↑ 2.0 2.1 2.2 “Interview with Michel Vuijlsteke: Why Otlet.cloud?” Recorded conversation, 2 October 2025.
- ↑ 3.0 3.1 “Otlet.cloud — Home page,” accessed 1 October 2025, https://otlet.cloud/
- ↑ 4.0 4.1 “Email interview with M. Vuijlsteke about the first production card sort,” 5 October 2025.
- ↑ “Otlet.cloud changelog notes,” internal release notes, October–November 2025.