HWIOS(http://hwios.org) is a HTML5 websocket CMS, making realtime web-applications easy to develop, and efficient to work with.

1. HW IO S http://hwios.org

2. W ebsockets? H TTP transport W ebsocket transport Payload: HTTP Headers + data Unidirectional Connection closes after each response Payload: UTF-8 & Binary data Bidirectional Connecion can be kept open as long as needed Browser Webserver Browser Webserver Browser Webserver Browser Webserver

4. Javascript state lost after each page reload

5. Document-focussed, temperate emphasis on client-side javascript

6. XHR transport for dynamic in-page upd ates

7. Large header overhead and TCP connection latency for small updates

8. Moderate static payload for non-cached unique links

9. SEO well supported

11. Maintains javascript state

12. Application-focussed, strong emphasis on client-side javascript

13. Websocket transport for dynamic in-page updates

14. No headers and low latency due to reusage of existing TCP websocket connection

15. Heavy static payload for non-cached unique links, due to javascript application files => CDN

16. No SEO yet, web-crawlers don't support websocket url's yet

17. Bidirectional

18. C MS dataflow comparison H TTP CMS data-flow W ebsocket CMS data-flow Page view Render page updates Navbar URL Render main template XHR Page view Render page updates Navbar URL Render Bootstrapping template WS Click URL Click URL Navbar URL

20. Build on top of solid frameworks like Twisted, Django and Jquery

21. Performance; Twisted async framework and optional speed-boost from PyPy-JIT

22. Compatibility; HTML5 browser-engines (Webkit, Gecko and Opera)

23. Simplicity; no websocket emulation, just an optional warning for non-compatible browsers

24. RRAD; Realtime & Rapid Application Development

25. Several realtime application modules Messenger – Chat, Activity, link-invites, Whois Profiles – Basic profile management, websocket login, email registration Wiki – Collaborative multi-user markdown editor, history replay, wiki-graph visualisation Blog – WYSIWYG, image upload/inline resize, comments OpenSim – OpenSimulator virtual world administration Teknon – Remote distributed service management Plasmoids – Collaborative javascript widget creation for moderators Slide – Simple collaborative canvas drawing application

26. Realtime framework functionality HRM – HWIOS Remote Messaging, URL-based JSON websocket protocol for function routing Intuitive routing – Uses url-like routing mechanisms both clientside and serverside View push – Updates a user's view when another user modified it's content Activity push – Notifies other users about what's going on in-site Observer events – Trigger serverside functionality on events like connect, disconnect, view-change, etc.

28. Why Twisted? Well-tested, flexible and fast Async internet server platform Rich ecosystem: lots of ready-to-use server-technology

29. Why Django? Well-documented, maintained and tested Rich ecosystem: ORM, form checking, template system, authentication, groups, etc..

30. Why Jquery? Well-documented, maintained and tested Easy DOM-manupilation JQuery UI

31. Why HWIOS? Clean code-base Intuitive URL-based routing system Sphinx documentation Sticks to existing and prooven Django view-patterns DRY; two years of R&D for free Lots of existing web-applications LGPL license permits proprietary modules Support; #hwios, #hwios-dev @freenode, mailing-group, community-site ( http://hwios.org ) And more...

33. Check out the documentation at http://hwios.org/docs/

34. Check out the source-code at https://github.com/os-networks/HWIOS

35. Install HWIOS and start writing your own code

36. Fork HWIOS and send in pull-requests for your own code

37. Contact OS-Networks for licensing or copyright questions at info@os-networks