                                                           File:  RELEASE.TXT


                      EXAMS Model System Release Notes

               Center for Exposure Assessment Modeling (CEAM)
     National Exposure Research Laboratory - Ecosystems Research Division
                  Office of Research and Development (ORD)
               U.S. Environmental Protection Agency (U.S. EPA)
                          960 College Station Road
                         Athens, Georgia 30605-2700

                                706/546-3549



-----------------------------------------------------------------------------

Corrections and Changes Between Versions 2.94 and 2.941:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Date: Tuesday, 13 June 1995.  Time: 14:32:20.

Summary:  

1)   Composed and added the following EXAMS model system user support
     documentation files:

     READ.ME........EXAMS model system general execution and user support
                    guide
     RELEASE.TXT....EXAMS Model System Release Notes
     UPDATE.TXT.....EXAMS Model System Update Notes
                    (Enhancements/updates/additions not covered in user
                    manual file)
     ABSTRACT.TXT...EXAMS Model System Abstract
     FILELIST.TXT...EXAMS Model System Distribution File List
     RESPONSE.TXT...CEAM Software Product User Response Form
  
2)   Composed INSTALIT/MediaBuilder code and logic for product version
     description PVD and installation INF script files.

3)   Recompiled and relinked executable task image program files for the
     UTILITY program and EXAMS model using Lahey FORTRAN 32-bit, protected
     mode compiler and Phar-lap linker.

4)   Included new executable task image files (UTILITY.EXE, XEXAMSX.EXE) and
     all updated run time support programs and files, including the
     unformatted, direct access data and help file EXAMDAF.DAT.

5)   Added and included the welcome screen file EXAMOPEN.SCR.

6)   Designed, coded, and included new DOS batch command files for (1) the
     execution of the UTILITY program for building a new data and help EXAMS
     run time support file (NEWDAF.DAT), and (2) the execution of the EXAMS
     model (EXAMS.BAT).

7)   Added and included the following Lahey FORTRAN MAKE utility files:
     MAKEFILE (UTILCODE) and MAKEFILE (EXAMCODE).

-----------------------------------------------------------------------------

Corrections and Changes Between Versions 2.941 and 2.96:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Date: Monday, 4 March 1996.  Time: 15:05:48.

Summary:  

1)   Implemented numerous FORTRAN source code changes to correct minor errors
     and/or problems that occured during program execution.

2)   Modified EXAMS program to 
     a)  include file-transfer interfaces to the PRZM terrestrial model and
         the FGETS bioaccumulation model
     b)  allow space for 5 simultaneous chemicals (or one chemical and two
         degradation products, etc.), and environmental models of up to 100
         segments

3)   Replaced EXAMS version 2.94 unformatted direct access data- and help-
     file EXAMDAF.DAT with file EXAMSDAF.TPL that includes space for 25
     chemical data sets, 10 environmental data sets, 5 external chemical load
     series, and 5 product chemistries.  The file EXAMSDAF.TPL is a read-only
     file that is protect from over-write by the DOS ATTRIB +R command.  This
     file is automatically copied to the file EXAMS.DAF and write-protected
     by the installation program.

4)   Included new test input and output data files TEST.EXA and REPORT.XMS
     to test the installation of the EXAMS program and support files and
     programs.

5)   Updated the following EXAMS model system user support documentation
     files:

     READ.ME........EXAMS model system general execution and user support
                    guide
     RELEASE.TXT....EXAMS Model System Release Notes
     UPDATE.TXT.....EXAMS Model System Update Notes
                    (Enhancements/updates/additions not covered in user
                    manual file)
     ABSTRACT.TXT...EXAMS Model System Abstract
     RESPONSE.TXT...CEAM Software Product User Response Form
  
6)   Updated INSTALIT/MediaBuilder code and logic for product version
     description (.PVD) and installation (.INF) script files.

7)   Recompiled and relinked executable task image program file for the
     EXAMS model, version 2.96, using Lahey FORTRAN 32-bit, protected mode
     compiler and Phar-lap linker.

8)   Included new executable task image file (XEXAMSX.EXE) and updated run
     time support programs and files, including the unformatted, direct
     access data and help template file EXAMSDAF.TLP.

9)   Updated the welcome screen file EXAMOPEN.SCR.

10)  Updated and included DOS batch command files for (1) the execution of
     the UTILITY program for building a new data and help EXAMS run time
     support file (NEWDAF.BAT) to include the input response file SETUP.INP,
     and (2) the execution of the EXAMS model (EXAMS.BAT).

11)  Updated Lahey FORTRAN MAKE utility files MAKEFILE.UTL for the UTILITY
     program and MAKEFILE.EXA for the EXAMS model codes.

12)  Included new DOS batch command files to assemble FORTRAN source code and make files for
     the UTILITY program and EXAMS model codes for proper compile and link
     execution by make files listed in 7) (ASSEMUTL.BAT, ASSEMEXA.BAT).

13)  Included new file, in postscript format, that contains the User's Guide
     for EXAMS II Version 2.96 (EXAMS.PS).

-----------------------------------------------------------------------------
