1. Supported platforms
   1. Platforms in active development. We currently develop and/or deploy live material on these platforms:
      1. Solaris SPARC 2.6 or higher
      2. Red Hat Linux Intel 8.0 or higher
2. Disk space requirements
   1. DLXS Middleware: 10 MB to store the libraries and programs that make up the working DLXS system.
   2. Content: This varies dramatically according to the amount and format of your material. For a collection of significant scale, the storage requirements will be dominated by the number of page images and/or continuous tone images--SGML and metadata are quite small in comparison. DLXS allows you to store the middleware and the content in different locations to simplify system administration.
3. Required capabilities and software
   1. root access (to change aspects of the environment, e.g., directory and file permissions, web server configuration, etc.)
   2. Perl 5.8.3 or higher.
   3. The following Perl modules (where versions are given, DLXS requires that version or higher):

   Module	Version
   Apache::Session	1.54
   CGI	3.04
   Carp	1.01
   Cwd	2.15
   DBD::CSV	0.2002
   DBD::mysql	2.9003
   DBI	1.40
   Exporter	5.57
   File::Basename	2.72
   File::Copy	2.07
   File::Find	1.06
   File::Path	1.06
   FileHandle	2.01
   Getopt::Std	1.05
   HTML::Parser	3.35
   HTML::Template	2.6
   IPC::Open3	1.0105
   LWP::Simple	1.38
   Mail::Mailer	1.60
   Mail::Send	1.60
   MIME::Base64	3.00
   Net::hostent	1.01
   POSIX	1.07
   Socket	1.76
   SQL::Statement	1.005
   Text::CSV_XS	0.23
   URI	1.30
   XML::LibXSLT	1.57
   XML::LibXML	1.57

   IMPORTANT NOTE: The SQL::Statement version 1.005 Perl module is not backward compatible with version 0.1021, our previous requirement. Version 0.1021 was typical of Perl version 5.6.1 whereas 1.005 is typical of Perl 5.8.0. We recommend you install Perl 5.8.0 and SQL::Statement 1.005 or higher and follow the workarounds below as necessary. (These workarounds may not be required when SQL::Statement 1.006 becomes available.)

   • collmgr
     • Functions normally with either 0.1021 or 1.005
   • dbmove
     • Functions normally moving CSV to MySQL under either 1.005 or 0.1021
     • Incorrectly uppercases column names when moving MySQL to CSV under 1.005. The workaround is to lower case the resulting column names using an ascii editor.
     • Fails completely under 0.1021 moving CSV to MySQL or vice versa.
   • upgrade_1_2, upgrade_2_3
     • Functions normally upgrading a MySQL database under either 1.005 or 0.1021
     • Incorrectly uppercases column names when upgrading CSV under 1.005. The workaround is to lower case the resulting column names using an ascii editor.

   Note that XML::LibXML and XML::LibXSLT are now required for all classes except BibClass. They are optional for BibClass unless you configure a BibClass collection's collmgr rendering field to xslt.

4. A web server that supports Apache sessions. We recommend Apache 1.3.26 or higher.
5. OpenSP 1.5 or higher (for using the supplied tools to prepare SGML and/or XML content for delivery via DLXS).

We appreciate hearing from you if you encounter other system requirements. Please contact the author for additions and suggestions.