What does the experience of 'success' and 'failure' mean to a project manager?

Today, successful implementation of project is not as simplistic. Ideally, maintaining the iron triangle of time, cost and quality of a project is the baseline for managers to ensure a promising project performance outcome or success. Constant trade-offs between these three is normally done to allow successful completion of projects and to fulfill the satisfaction of the clients. However, there are projects that could be completed within the iron triangle, but still ultimately be an economic, environmental or social failure.

There are many research studies that have been conducted to investigate the critical factors affecting project performances, it should be bear in mind that, for example due to the rapid changing of technology, the criticality of these factors change or some factors may disappear. Additionally, the interactions and varying relative importance along the project implementation process should also be taken into account.
 
Again current research extended its studies on organizational learning, the "effective" methods for the transfer of this project experiences knowledge so the same success can be repeated or the same mistake can be avoided.

Still, good projects fail anyway.
 
Success and failure, the unintended outcomes of intentional actions, are widely written in the literature of project management, yet whose perspective is it taken from? What does it mean to project managers and how does it affect their subsequent actions, their practices, their tools, their learning...the subjects are endless. There is definitely an advantage or use in knowing from project managers' perspective because of their involvement in the day-to-day project activities.

For this reason, I am inviting all project managers across all industries to participate on this survey, to discover what is actually happening, what do the experiences of 'success' and 'failure' mean to a project manager so to identify which pieces of the puzzle are actually missing!
 
Please click here to participate.

The result of this survey will be available upon request. Survey link: http://www.surveymonkey.com/s/HDXJDHD