What is the most important aspect toward project success, is it the scope, time, cost or the project quality?

Scope, time, cost and quality all these are constraints and interrelated with ecah other. For project success or achieve the purpose all are important for project success.

I believe the most important aspect of "project success" is actually DEFINING success. What does it mean for a project to be "successful?" In other words, a project manager can can draw a floor plan of his/her vision, including the target time and budget. However, if all those aspects are reached, does that necessarily constitute success? I don't think so. A good strategy towards realizing success is actually defining the word in the context of your work. Project Managers should operationalize key factors or qualities associated with a project in order to measure the impact/results. For example, if you're planning a large event, success can be measured quantitatively (by the number of attendees) or qualitatively (by the quality of attendees or level of engagement). Defining success is, in my opinion, the most important element of not only imagining but realizing success. 

It all begins with the scope of work which is the defining factor of any project. As the scope is defined with expected quality, cost and timelines success of any project lies. If scope says I don't mind the project go for 2 years but the quality and cost should fall in place then the entire work will drift towards achieving cost with best quality as it is a sourcing of best material at lesser cost meeting many competitive comparative vendors. Similarly if the scope says I need this project to be finished within 2 months yet do not want to compromise on quality and cost, then the focus falls in place to but a perfect BOQ in place to achieve timelines than with defined quality. So in my sense any projects success depends largely on the scope. If it is on a ongoing basis with set cost, quality and time-lines then everything should go hand-in-hand to achieve perfection in every new project. As time passes in such standard projects case team should work on re-engineering, innovations to uplift quality cost and yet achieving time-lines. Thanks

The most important aspect toward project success is firstly defined the Scope of work and according to the project scope limited we can adjust the other elements and decline the project deviations to the minimum as all of elements will combine and contribute to reach the successful project target by the realization the following :

1- Project execution on time

2- High profitability with little deviations

3- The Cost with the Project budget allocated

4- High quality in the execution process

5- Little problems and Obstacles with right tickles & solutions

6- Training program Onsite performed as per the agreed scheme

 

Scope definition is most important as without clearly defined Scope Both Time & Cost may be effected . Scope should be clear with defined objective . Vague scope is having serious consequences on Quality as well as cost too.

......... follower ................

all aspects are very important

Thank you for the invitation

the project quality

 

Mohammads answer to my mind hit the nail on the head. What is success and how is it defined. The answers by colleagues todate reflect the traditional approach to project management and the development of KPIs. However the challenge for procurement professionals is to rethink the definitioin of these contract elements when the scope is unknown and there is a high degree of uncertainty in relation to delivery risks.

In these circumstances the focus is on the capability and capacity of your partner, the legal instrument used to engage and deal with this uncertainty, an administrative arrangement that defines the behaviour of the parties and a commercial arrangement that rewards for performance. Get these things right and it doesnt matter what the scope is.  

First of all cost which determine the ability of implementation any project . Cost is the result of the other aspects you mentioned above . So all aspects are very important but we need also the sales price to be suitable with the whole aspects .

I would say it time ,cost and quality. All are interrelated from project point of view. Any change in any of the parameter will have overall effect on the project.