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Subject [CONF] Apache Sling > Who is using Sling ?
Date Wed, 28 Oct 2009 05:25:00 GMT
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     <h2><a href="">Who
is using Sling ?</a></h2>
     <h4>Page <b>edited</b> by             <a href="">Audrey
     <div class="notificationGreySide">
         <h1><a name="WhoisusingSling%3F-WhoisusingSling%3F"></a>Who is
using Sling ?</h1>

<p>Although Sling is a relatively young project, only recently graduated from the incubator,
it already has a growing following of adopters. This page lists those adopters (or at least
those that agree to be listed). </p>

<p>Being on the community wiki, if you are using Sling and your not listed here, please
add yourself with a brief description of your project and how you have adopted Sling.</p>

<h2><a name="WhoisusingSling%3F-Adopters"></a>Adopters</h2>

<h3><a name="WhoisusingSling%3F-SakaiProject%28"></a>Sakai Project (<a
href="" rel="nofollow"></a>

<p>The Sakai project is a project that was started in 2004 funded by a research grant
from the <a href="" rel="nofollow">Andrew Mellon Foundation</a>.
Its aim was to create an open source collaborative environment to support teaching and learning
and research within Higher Education. The initial project members were Stanford University,
University of Michigan, Indiana University and the Massachusetts Institute of Technology.
These four were rapidly joined my many other institutions growing to over 160 Universities
running Sakai in production today. The project funding has come to an end and sustainability
has been achieved as a result of community contributions.</p>

<p>The University of Cambridge (UK) was one of the early adopters and rapidly became
involved in shaping the core of Sakai. In early 2008, shortly after Google made its OpenSocial
announcement a decision was made to re-architect Sakai to be more user focused and socially
aware, building on the collaborative experiences seen in networks like Ning and Facebook.
After a period of evaluation Sakai chose Sling as its core technology partly because it had
the solid backing of the Apache Foundation, but also because it was based on OSGi for componentised
development, solid REST semantics and a solid JCR production backend in Apache Jackrabbit.</p>

<p>This adoption has had a huge impact on the Sakai code base. Although the core development
is not complete, Sakai's line count has dropped from about 1.8M lines of code to about 200K
as Sling has replaced many of modules that satisfied the Enterprise Content Management use
cases. As a result, the code quality, scalability and performance have all risen whilst the
memory footprint of production JVM's has halved. Perhaps the most startling impact has been
the new ease with which UX designers and UI developers are able to work with the framework,
where previously the Java web environment had precluded a UX/UI driven rapid development cycle.</p>

<p>Sakai 3 based on Sling will be going into production at the University of Cambridge
by December 2009, with a number of other early adopters. For more information see an early
<a href=""
rel="nofollow">screencast</a> or look at the project site (<a href=""
rel="nofollow">frontend</a>, <a href=""
rel="nofollow">backend</a>) or <a href="" rel="nofollow">live
demo</a> </p>

<p>License: ECL2/Apache2</p>

<h3><a name="WhoisusingSling%3F-Day%28"></a>Day (<a href=""

<p>Sling started as an internal project at Day Software, and has been contributed to
the Apache Incubator in September 2007. It can be considered an important part of Day's software
stack, and was open-sourced to make the technical innovations contained therein available
to the public.</p>

<p>Sling powers Day's entire <a href="" rel="nofollow">CQ5</a>
family of content management products (Web Content Management, Social Collaboration, Digital
Asset Management), and is included in Day's CRX content repository, which is itself based
on <a href="" rel="nofollow">Jackrabbit</a>.</p>

<p>Quite a few high profile mission critical websites are powered by CQ5 - Day's <a
href="" rel="nofollow">customer list</a>
mentions some of them. Day's <a href="" rel="nofollow">website</a>
runs on CQ5/Sling as well.</p>

<p>CQ5 has been very well received by the press and by analysts, and Sling has played
a major part in this success, by enabling the CQ5 development team to create robust and higly
modularized software very efficiently.</p>

<p>License: Commercial product</p>

<h3><a name="WhoisusingSling%3F-TuberculosisProject"></a><a href=""
rel="nofollow">Tuberculosis Project</a></h3>

<p>The TB project (link tb project) is developed by <a href="/confluence/pages/createpage.action?spaceKey=SLING&amp;;linkCreation=true&amp;fromPageId=2852421"
class="createlink">Tibtec</a>, a nonprofit technology center based in Dharamsala
that helps the Tibetan community in harnessing modern technologies to help the community.
The aim of the project is to build a system to monitor the tuberculosis among tibetan communities
in India, Nepal and Bhutan. Thanks technology advances in mobile and web computing, it is
now possible to design a recording and reporting web portal supporting the <a href=""
rel="nofollow">WHO DOTS protocol</a>.</p>

<p>The project of <a href="" rel="nofollow">monitoring
the tuberculosis</a> among tibetan communities in India was born 1 year ago thanks to
four actors: the <a href=";rmenuid=12" rel="nofollow">DoH</a>
(Department of Health, Tibetan Government in Exile), Tibetan Delek Hospital (Gangchen Kyishong
- India), <a href="/confluence/pages/createpage.action?spaceKey=SLING&amp;;linkCreation=true&amp;fromPageId=2852421"
class="createlink">AISPO</a> (Italian Association for Solidarity Of Persons), and
the <a href="/confluence/pages/createpage.action?spaceKey=SLING&amp;;linkCreation=true&amp;fromPageId=2852421"
class="createlink">Johns Hopkins University</a> (USA). TibTec is working on a system
for the above four actors to monitor TB in the Tibetan communities living in India, Nepal
and Bhutan.</p>

<p>The main goal of the project is to build a simple, low-cost and versatile framework
so that communities all over the world could benefit from it. The system could be easily customized
for other works as well since it based on open source software. </p>

<p>There was a need to put in place a centralized solution (web portal) with mobile
data gathering (SMS) on to understand and fight with more efficiency against tuberculosis.
The system also provides an information platform with data analysis and management for medical
staff and health workers. The system is capable to cope with electricity power cuts and IP
network inaccessibility. Finally, a reminder system for taking drugs and/or coming to visit
doctors is available.</p>

<p>Technically, the solution consists in the implementation of a remote repository that
stores data related to the project (e.g. Doctors, Patient records, DOTS reports, etc.) and
which is accessible via a mobile gateway (android-based) that send  HTTP POST/GET requests
 to a RESTfull API of a web framework (Apache Sling). </p>

<p>The system also implements Sling accessors to this remote repository: a server for
analyzing SMS running on an android phone and a website built with a combination of server-side
scripts in JSP and client-side script in Javascript. Finally, the reminder service for patient
is managed thanks to the Google Agenda reminders service that send reminders on phones at
a special date and hour through a gateway running on the android server to patients mobile
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