Craig Brown hates it when he sees people report their work was 90% done for weeks in a row.
The question is whether or not it is possible for a task to be 90% complete. When considering a completion of a Work Package, work is either Done or it is Not Done. My favorite approach for progress monitoring is as follows:
Before work commences progress is obviously 0%.
When work commences, progress is recorded as 50%, and remains so until the complete work is done.
Once the task is fully complete progress is recorded as 100%.
This removes any ambiguity from progress reports.
I value your comments, if you have any thoughts on the above please join in and share with others!