THE DELTA SYSTEM - CONDITIONS OF USE

                              18 December 1997

               M. J. Dallwitz, T. A. Paine, and E. J. Zurcher

                 CSIRO Division of Entomology, GPO Box 1700
                        Canberra ACT 2601, Australia
                 Phone +61 2 6246 4075  Fax +61 2 6246 4000
                          Email delta@ento.csiro.au







INTRODUCTION

The DELTA format (DEscription Language for TAxonomy) is a flexible method
for encoding taxonomic descriptions for computer processing. DELTA-format
data can be used to produce natural-language descriptions, conventional and
interactive keys, and cladistic and phenetic classifications.

The DELTA System supplied by the CSIRO Division of Entomology comprises:
Intkey, a program for interactive identification and information retrieval;
Confor, a program for translating DELTA data into other formats; various
other programs; documentation, including User's Guide to the DELTA System
and A Primer for the DELTA System; and sample data files.


OBTAINING THE PROGRAMS

The DELTA System and various data sets are available from the DELTA Home
Page at
   http://biodiversity.uno.edu/delta/

There is a mailing list, DELTA-L, for discussion of DELTA and announcements
of updates. To subscribe, email the message
   subscribe delta-l your-first-name your-last-name
to listserv@nic.surfnet.nl. You can also subscribe at
   http://www.calm.wa.gov.au/science/delta/deltal.htm


CONDITIONS OF USE

Registration

Use of any of the programs beyond a test period of one month is prohibited
unless you have registered, or are using the program with a licenced data
set.

Citation

If the use of the programs leads to a publication, you must include
appropriate citations (see Primer or User's Guide), and send a copy of the
publication to the DELTA authors.

Use or distribution of the programs for financial gain

Use or distribution of the programs for financial gain is prohibited unless
you have entered into a Licence Agreement for such use or distribution.

Redistribution of the programs

You may distribute the programs provided you do not receive a financial gain
from such distribution, and you include the files Deltause.txt (this
document) and Deltareg.txt (registration and order form).

Support

Registered users are entitled to free support for clarification of the
programs or documentation. Reported program bugs will be fixed promptly.

Significant help with the design, analysis, or presentation of data should
be treated as collaboration, and lead to joint publications.

Liability

Terms, conditions, warranties, or representations, relating in any way to
the programs, are excluded, except where expressly provided to the contrary
in these conditions of use. CSIRO or its employees shall not be liable for
any loss, damage, or injury (including without limitation any loss of
profit, indirect, consequential, or incidental loss, damage, or injury)
arising from the use of the programs.


REGISTRATION FEES AND EXEMPTIONS

A registration and order form is provided in the file Deltareg.txt. The fees
are subject to change without notice.

Multi-user registration

The fee for registering several users within the same organization is based
on the number of people who could be using the programs simultaneously,
excluding users who are exempt from the fees. Registration may be upgraded
to a higher number of users, or from Intkey to all the programs, by paying
the difference in cost.

Exemptions

The following are exempt from registration fees: students, if the teaching
organization has paid for registration for at least one user; Australian
Biological Resources Study (ABRS) staff and Flora and Fauna authors, if they
are using the programs only for ABRS purposes. Exemption may also be granted
in case of financial hardship.

Upgrades

Registration entitles you to use later versions of the programs, unless
stated otherwise with the release of a new version.