We are glad to announce version 0.7.1 of Jason, an interpreter
for a much extended version of AgentSpeak, which is a BDI logic-based
agent-oriented programming language. There has been major improvements
since Jason was last announced on the lists. It's available Open
Source (under LGPL) at:

http://jason.sf.net

Version 0.7 of Jason has all the features described in chapter 1
of the book on "Multi-Agent Programming" recently announced in
this list; the book is available at:
http://www.springeronline.com/0-387-24568-5
http://www.amazon.com/exec/obidos/tg/detail/-/0387245685
http://www.amazon.co.uk/exec/obidos/tg/detail/-/0387245685

Besides implemented in Java, Jason has various customisation
and extension mechanism which make integration with Java
code very easy and neat. In the sourceforge download page,
besides the main Jason package you'll also find other resources.
In particular, there is an example showing the access to web services
from within an internal action.

Various other extension (such as the use of ontological reasoning,
organisational structures, and various others) are also under
development. We will also provide teaching resources (e.g., slides
and exercises) soon. Because of the simplicity of the basic
AgentSpeak constructs, Jason is quite appropriate for under- and
post-graduate teaching.

Jomi Hubner and Rafael Bordini