40 Mb disk space
According to the type of installation, the required disk space varies.
The runtime environment needs less room than the development environment.
During the installation, about 15 Mb are needed in the current temporary
directory.
A network card
A network card is not absolutely necessary. It is recommended if you want
to test your application in an n-tier architecture.
About 2 to 6 Mb memory per user
The amount of memory needed will change according to the Operating System,
the database engine and your application. Each DVM process takes 2 to
6 Mb. For example, a typical requirement for a 30-user runtime environment
with an Informix database server is a 500 MHz processor with 512 Mb RAM.
A graphical user environment
Either a Unix graphical environment (X11, …) or Windows or Mac is needed
to run a graphical client. An Internet browser and a web server may be
needed too if the application is expected to run over the Internet.
An Internet connection
During the licensing process, you will have to validate the license keys
on Four J’s web site. The machine you are installing does not need to
be connected to internet. You can use a nearby machine for that.
‘C’ Linker
A runtime system or ‘runner’ is needed to execute programs. It is automatically
created during the installation phase. Depending on the database version
and the operating system, this runner may need to be created manually.
To do so, a ‘C’ linker is needed. The ‘C’ linker is only needed on the
development machine and once per operating system.
ANSI ‘C’ Compiler
If your I4GL application calls C functions, these functions will need
to be recompiled. Then, an Ansi C compiler is needed.
Database engine
The database used with I4GL will work with Four J’s products. To simplify
the installation of Four J’s products, it is highly recommended to install
Informix CSDK including ESQL/C. Always prefer the latest version of CSDK
when installing it.
Four J’s documentation
Four J’s documentation will be very helpful during the installation of
the product and during the migration phase. The documentation includes
also a list of new features, which may help you in modifying your application.
[link to the documentation download]
Four J’s License
Four J’s provide special offers to people migrating from I4GL or D4GL
to BDS or Genero. Contact your nearest
sales and marketing centre for more information.