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Rensselaer’s initial efforts focused on restructuring some of the code to more cleanly separate the server (back-end) part from the web client (front end). This allowed us, among other things, to easily provide a “skins” capability. The UW calendar became more modular and amenable to using other client interfaces that other developers might care to build. Two of our goals going into the project were to leverage our expertise in Java, J2EE, web client interfaces, and to avoid becoming calendar experts, leaving that role to the University of Washington developers.

In December 2003, UWCalendar was made available at RPI. Over the next 18 months, we played an increasingly large role in UWCalendar development. The University of Washington really developed two versions of UWCalendar, the open source version which we collaborated on, and a local version, based on the open source version, which integrated with their locally developed portal, providing significant value to the UW community. Their obligations to the local UW version made it increasingly difficult for them to contribute to the open source version.

In 2005 we became convinced that UWCalendar would not achieve its ambitious goals and began development of a rearchitected, hibernate-based successor. After much soul searching, in September 2005, we told our colleagues that we would be working on a new version, and we announced a preview release of Bedework in December 2005, making us leaders of a new open source project. The first production version of Bedework, version 3.0, was released in March 2006.

Bedework’s design goals and capabilities include platform independence (via Java/J2EE), database independence (via hibernate), internationalization, standards (RFC 2445, CalDAV) compliance, portlet (JSR168) support, no license fees or restrictions (BSD style open source license) fine-grained distributed administration, support for public events, personal calendars, and departmental calendars, easy to install code with complete, well-defined APIs, no local dependencies, support for external authentication (such as LDAP, Yale CAS, etc) via container authentication, full access control via the CalDAV model, XML and XSLT based web clients allowing for a number of capabilities, such as localization and multilanguage support and RSS syndication.

Bedework is probably in production use or in some stage of production deployment at about two dozen institutions of higher education.

Ip – ours and others

As an independent open source project, we needed to decide early on how to handle the intellectual property issues associated with Bedework. The two pressing questions to be decided were the terms and conditions of the Bedework license, and the terms and conditions of the Bedework contributor’s agreements.

Although the case could be made that Bedework was only the logical heir to UWCalendar and not a derivative product, we weren’t sure what it meant to make such as a case, or how much work it would prove to be to make such a case. Consequently, we decided to pretty much adopt and adapt the terms of UWCalendar, allowing the Bedework source code to be used for any purposes, including commercially, as long as acknowledge is given. Having to choose from the large number of open source licensing terms was not an appealing prospect anyhow.

Questions & Answers

how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
can nanotechnology change the direction of the face of the world
Prasenjit Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, The impact of open source software on education. OpenStax CNX. Mar 30, 2009 Download for free at http://cnx.org/content/col10431/1.7
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