• IMP 1.0 had no templates, one function library, and no classes.
• There was no design or engineering at all.
• IMP 1.5 was graduated to having a slightly more general function library and a non-general database library.
• There were also templates, but configuration was still hardcoded in a library file.
• Nothing was really abstract.

Things that needed to be fixed:

• Some sense of design
• Some sense of organization
• Basically, any engineering at all