Large-Scale Knowledge Management Systems Using Plone Technologies - Tom Moroz- Paul Everitt- And...
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7/29/2019 Large-Scale Knowledge Management Systems Using Plone Technologies - Tom Moroz- Paul Everitt- And Calvin Hendryx-Parker
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PLONE SYMPOSIUMEAST 2010
PENN STATE
MAY 27, 2010
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Large-scale KnowledgeManagement Systems using
Plone Technologies
Tom Moroz, Paul Everitt,Calvin Hendryx-Parker
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OBJECTIVES OF TALK
Background
Technical / HostingDecisions
Future
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Open Society Institute
7 core offices in U.S. and Europe
National Foundations in 32 countries
Program and grant giving activity inover 60 countries
>20 Program Areas / Initiatives
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The Path to KARL 3.0:
August 2006 Software developmentbegins
May 2007 KARL v1.0 beta release
January 2008 official launch
November 2008 KARL v2.0 release
June 2009 KARL v3.0 release
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Moving from Plone to BFG
Plone is great at what it does. Contentmanagement in a nice, general way.
What do you do when your project is outside of
the sweet spot? Further you need to extend Plone, the more you
fight the framework. High developer frustration.
Using BFG, we were able to maintainprogramming paradigms familiar to Zope/Plonedevelopers without using/fighting Plone.
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The move from KARL 1 to KARL 2
Entirely new UI built on top of Plone--verydifferent from Plone's UI.
Much framework fighting.
Much integration with non-Plone technologies,aka Frankenplone.
Bad performance, poor reliability.
Difficult maintenance.
Difficult to provide something reasonable for non-OSI deployments.
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Alternatives to Plone?
Zope2, primarily used by Plone, time tested.
Zope3, big, many dependencies, app developersencouraged to use CA.
Grok, an attempt to make Zope3 easier to use.
Django, nice, but full stack like Zope2.
Pylons/TG2, also nice but geared towards
RDB/URL dispatch.
Several others, little traction, not Zope-like
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BFG
In repoze namespace, but is not really repoze.
Like Zope, but much smaller, leaner.
Speed and simplicity: "Pay only for what you eat." If youdon't need it, it's not there. If you do need it, it is easy to
put in.
Documentation: An undocumented feature or API is a bug.
Testing: 100% test coverage. Untested code is brokencode.
Collaborative culture: using and promoting non-Zopetechnologies when the are useful.
Easy to adopt for Zope developers. (Maybe non-Zopedevelopers as well.)
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BFG for KARL
BFG's goals aligned nearly perfectlywith goals for KARL.
OSI wanted Plone, but not really.
Using BFG we were able to build thebest KARL we could.
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KARL Technology
Python
WSGI, WebOb, Paste Deploy, virtualenv, eggs,repoze.who, Supervisor, formish, TinyMCE,
jQuery and jQuery UI, nose, twill, mod_wsgi
Zope
ZPT (Chameleon), traversal, views, security,
ZODB/ZEO, catalog, component architecture(interfaces, adapters, utilities, ZCML), buildout
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Lies, Damn Lies
1,700+ unit tests, 8-10 seconds.
Startup time:
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KARL Project
15 committers, 9 organizations
Launchpad: 708 total issues, 42
milestones
20 open bugs
Hosting by Six Feet Up
Web Site: www.karlproject.org
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Hosting
KARL 3
Xen and CentOS
Fully Managed, Monitored
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Recent & Future KARL Hosting
Moved to a new datacenter Q3 2009
Hardware to improve search Q22010
Disaster Recovery Support Q3 2010
Online Realtime Backup Q3 2010
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Partners
3 partner organizations Oxfam GB
Eurasia Foundation Fahamu (Media NGO)
Ariadne (Human Rights Consortium)
Global Campaign for Education
Open Society Policy Center
Six Feet Up
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The Path Forward.....
On-going software development
Development of a governance modelto make available to both large andsmall organizations
The importance of soft technologyand methodologies