LisaProject

LisaProject was the first graphical project management software. Developed for the Apple Lisa computer, LisaProject was conceived and implemented by Debra Willrett of SoloSoft and developed for Apple's Lisa computer.

This was the first GUI-based software application for project management. LisaProject was the first to simplify the project management process by allowing the user to interactively draw their project on the computer in the form of a PERT chart. Constraints could be entered for each task, and the relationships between tasks would show which ones had to be completed before a task could begin. Given the task constraints and relationships, a "critical path", schedule and budget could be calculated dynamically using heuristic methods. Once this was complete, the schedule data could be viewed as a Gantt chart.

In 1981, she realized that project management was a universal problem and that a GUI-based application would be a useful tool. She proposed what became LisaProject to Trip Hawkins at Apple. At the time, Apple was developing the Apple Lisa computer which had limited software.

Untimately the Apple Lisa failed in the marketplace, but the largest Lisa customer was NASA, which used LisaProject for project management. As a result of the demand for LisaProject from NASA and from other customers, a new version of the software came out with the first Macintosh release in 1984 and was called MacProject.