Project network

Derived from the work breakdown structure, the terminal elements of a project are organized sequentially based on the relationship among them.

It is typically drawn from left to right to reflect project chronology.

Activity float, or slack, time is used in project crashing.

The condition for a valid project network is that it doesn't contain any circular references.

Although such a form is very inconvenient for human analysis, project management software often offers such a view for data entry.