Simple Instructions for Using the Software dsss1.exe on a PC
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1. Download the DOS executable file dsss1.exe and the sample
   input file dsss1.inp. 

2. Put the above two files in a same directory (say directory x).

3. Using the following procedures to change the parameters in the 
   dsss1.inp if necessary. Please follow carefully the instructions 
   in that file. Do not delete or add lines to the dsss1.inp file.
   We do not advise the user to use some advanced editor like
   'Microsoft Word' to edit the dsss1.inp file since this might
   add unwanted hidden character(s) to the dsss1.inp file.
   
   (i)   click on the Start button on Windows 95 or 98,
   (ii)  click on the Program button,
   (iii) click on the MS-DOS Prompt button; this will start the DOS
         environment,
   (iv)  in the DOS environment change directory to subdirectory x,
   (v)   type "edit dsss1.inp" at the DOS prompt; this will start the
         DOS editor,
   (vi)  make necessary changes to the dsss1.inp file with this editor;
         you may use the "Page Up" and "Page Down" keys to scroll through
         the dsss1.inp file,
   (vii) use the 'file' button on the top-left to save and exit the editor.


4. Inside the directory x with the two files, you can start the
   simulation by typing to the DOS prompt 'dsss1.exe < dsss1.inp'.

5. If you have not changed the number of simulations parameter
   (line 37) in the dsss1.inp file, then the result should be out
   pretty quickly. The output will be stored in a file called 
   dsss1.log if you have not changed it to a different name (line 14)
   in the dsss1.inp file.

6. For the first run of the program, it is likely that you
   will see from the output file that you need to enlarge the upper
   bound or reduce the lower bound of the accrual rate. Please go to 
   line 88 in the dsss1.inp to make such changes.




Simple Instructions for Using the Software dsss1.f on a Unix Machine
====================================================================

1. Your Unix machine should have a FORTRAN compiler. Ask your system
   administrator about the command to compile a FORTRAN 77 program.

2. Download the FORTRAN source code dsss1.f and the sample
   input file dsss1.inp. 

3. Put the above two files in a same directory. Compile the FORTRAN
   source code. In most machines, you may type to the Unix prompt the 
   command  'f77 dsss1.f -o dsss1.out -O'. The executable file dsss1.out
   will be generated. The '-O' option tell the compiler to 'Optimise'
   the executable. It is not necessary to include it but if you do, it
   should shorten the running time of the program.

4. Use an editor to change the parameters in the dsss1.inp if necessary. 
   Please follow carefully the instructions in that file. Do
   not delete or add lines to the dsss1.inp file.

5. Inside the same directory, you can start the
   simulation by typing to the Uinx prompt 'dsss1.out < dsss1.inp'.

6. If you have not changed the number of simulations parameter
   (line 37) in the dsss1.inp file, then the result should be out
   pretty quickly. The output will be stored in a file called 
   dsss1.log if you have not changed it to a different name (line 14)
   in the dsss1.inp file.

7. For the first run of the program, it is likely that you
   will see from the output file that you need to enlarge the upper
   bound or reduce the lower bound of the accrual rate. Please go to 
   line 88 in the dsss1.inp to make such changes.
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