Check the listing for details. Enterprise objects frameworks Version 1.1 software for NeXTSTEP 3.3 NeXT Cube. Condition: Brand New. Listed at 19.95 USD. The Enterprise Objects Framework, or more commonly simply EOF, was introduced by NeXT in 1994 as a pioneering Object Relational Mapping product for its NeXTSTEP 3.3 development platform. EOF abstracts the process of interacting with a relational Databaseby mapping database rows to Java or Objective C Objects. This largely relieves developers from writing low-level SQL code. EOF enjoyed some niche success in the mid-1990s among financial institutions who were attracted to the rapid application development advantages of NeXT's object-oriented platform. Here is the WIKI Description https://en.wikipedia.org/wiki/Enterprise_Objects_Framework This EOF version 1.1 is specifically for NeXTSTEP Version 3.3 Operating system and NeXTSTEP 3.3 Developer tools .