History: WikiSuite vs OpenPaaS

OpenPaaS and WikiSuite have some similarities. This page is to explain the differences and rationale of choices. You likely will be interested in the other alternatives to WikiSuite.

Similarities

• Both are designed for the enterprise
• Both are reusing existing components with a goal to produce a unified user experience
• Both are upstreaming all fixes and enhancements
  • Notably, the OpenPaaS team (backed by LINAGORA) deserve huge praise for their massive work on Apache James and the JMAP standard (which WikiSuite will support)
• The teams behind each project have a long experience of producing FLOSS apps (OBM and Tiki Wiki CMS Groupware)
• They both use SabreDAV
  • https://github.com/linagora/esn-sabre
  • https://sourceforge.net/p/tikiwiki/code/68304

Differences

• OpenSaaS is the next generation of OBM. It's a rewrite in a different programming language while taking advantage of their extensive experience in the field. This has the "green field advantage"
• WikiSuite was born out Tiki Wiki CMS Groupware to address the need to expand out and add new functionality by partnering up with complementary components. This has the advantage of a larger feature set and a more mature code base but the disadvantage of some feature overlap. Some glueware between the components is required. In some cases, it's seamless and clean because (ex.: it's using an open standard so it's a desired extension point anyway). In some other case, it's not so clean because it's to compensate for overlap between applications.
• OpenPaaS uses ONLY OFFICE for editing documents
• OpenPaaS does not support XMPP (but there are plans for a gateway) while WikiSuite picked Openfire to fully support XMPP and to participate to improving XMPP over the long term.
• OpenPaaS is mail-centric. As of 2019-01, the mail stack of OpenPaaS is superior (more integrated) to WikiSuite's mail solution. The WikiSuite is actively working to close this gap: ClearOS, Cyrus IMAP 3 and JMAP development

Licensing

OpenPaaS is licensed AGPL with the following clause:

In accordance with Section 7 and subsection (b) of the GNU Affero General
Public License version 3, these Appropriate Legal Notices consist in the
display of the Signature Notice “OpenPaaS is powered by Linagora.” for any 
and all type of outbound messages (e.g. e-mail and meeting requests). 
Retaining this Signature Notice in any and all free and Open Source versions 
of OpenPaaS is mandatory notwhistanding any other terms and conditions.

These Signature Notices can be freely translated and replaced by any notice of
strictly identical meaning in another language according to localization of the
software, provided such notice clearly displays the words “OpenPaaS” and 
“Linagora”.

Regardless of the notice language, the Logo/words "OpenPaaS" must be a clickable 
hypertext link that leads directly to the Internet URL http://open-paas.org. 
The Logo/word "Linagora" must be a clickable hypertext link that leads directly 
to the Internet URL http://www.linagora.com.

The licensing for WikiSuite is less restrictive. The components in WikiSuite all have licences that are OSI compliant

• permissive (ex.: Apache)
• weak copyleft (LGPL)
• strong copyleft (ex.: GPL)

but none have network restrictions like AGPL.

And about the clause to prohibit removal of “OpenPaaS is powered by Linagora.” on "all type of outbound messages (e.g. e-mail and meeting requests)": There is nothing like this in the WikiSuite ecosystem. You can change the user visible messages to anything you want. We hope you will choose to promote the WikiSuite project in any way that makes sense to you, and forcing such messages is something end users won't appreciate. It also reinforces the perception of "Single Vendor Open Source". It's much better to do everything possible to have Community Open Source.

Questions

Is OpenPaas multi-tenant? (highly likely yes). WikiSuite is not.

• OpenPaaS claims that "OpenPaaS is the only industrial Open Source solution"

Related links

• http://open-paas.org

Other alternatives

• WikiSuite vs Adaxa
• WikiSuite vs Atlassian
• WikiSuite vs Cloudron
• WikiSuite vs CommonsCloud
• WikiSuite vs Cozy
• WikiSuite vs Ecloud Selfhosting
• WikiSuite vs Freedombone
• WikiSuite vs FreedomBox
• WikiSuite vs GoFAST
• WikiSuite vs Google
• WikiSuite vs IBM
• WikiSuite vs LibreOffice
• WikiSuite vs Lotus Notes
• WikiSuite vs Microsoft
• WikiSuite vs Nextcloud
• WikiSuite vs Odoo
• WikiSuite vs ONLYOFFICE
• WikiSuite vs Open-Xchange
• WikiSuite vs Open365
• WikiSuite vs Sandstorm
• WikiSuite vs YunoHost
• WikiSuite vs Zoho