The ArsDigita Community System (ACS) was an open source toolkit for developing community web applications developed primarily by developers associated with ArsDigita Corporation. It was licensed under the terms of the GNU GPL, and is one of the most famous products to be based completely on AOLserver. Although there were several forks of the project, the only one that is still actively maintained is OpenACS.
Features of ACS included a core set of APIs, datamodels, and database routines for coordinating information common to all community web applications, as well as modules such as workflow management, CMS, messaging, bug/issue tracking, project tracking, e-commerce, and bboards.
ACS was built in the mid-1990s to support the photo.net online community as well as a variety of Internet services from Hearst Corporation. The initial developers included Tracy Adams, Ben Adida, Eve Andersson, Jin S. Choi, Philip Greenspun, Aurelius Prochazka, and Brian Tivol. The ACS was originally written using the Oracle database and AOLserver threaded web server and thus was a combination of SQL, HTML templates, and Tcl code to merge database results with templates. ACS 3.4, however, was also available with Java Server Pages to run with Apache and Tomcat. In 2001, the code tree was forked, with the Tcl code base being maintained and refactored by one group of developers, while the product line was being re-written in Java EE.
In 2002, Red Hat acquired ArsDigita. As a result of this, the Java version was renamed "Red Hat CCM", and official support for the Tcl version ceased. However, the Tcl version continued to be maintained by the OpenACS community.
Although Red Hat continued to develop CCM for several years after its acquisition, in 2004 a decision was made to migrate to a community-based development model. With this decision, Red Hat CCM was again renamed to become Byline, and sources were relicensed under the LGPL.
|Stable release||5.9.1(August 8, 2017 )|
|License||GNU General Public License|
The Open Architecture Community System provides:
Projects that were or are based on OpenACS include dotLrn, dotFolio, dotCommunity, dotConsult, and Project-Open.
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