What's the important constraints in project management?

It is called the Project Management Triangle or the Triple Constrain or Iron Triangle consisting of Scope, Cost, and Schedule.  So, these are the3 major constraints in Project Management.

Scope,Cost and Time are the Important Constraints

scope, quality, time schedule, budget and risks :)

Time, Cost & Scope are the important constraints. Even a change management is also a major constraints for Project management

The project management triangle is used by managers to analyze or understand the difficulties that may arise due to implementing and executing a project. All projects irrespective of their size will have many constraints.

Although there are many such project constraints, these should not be barriers for successful project execution and for the effective decision making.

There are three main interdependent constraints for every project; time, cost and scope. This is also known as Project Management Triangle.

Let's try to understand each of the element of project triangle and then how to face challenges related to each.

The three constraints in a project management triangle are time, cost and scope.

Called "TRIPLE CONSTRAINTS"

Means: Scope, Time & Cost

Project scope, schedule, and cost

TIME, COST & SCOPE

time, scope, cost at agreed  quality

Project management defines three major constraints - Budget, Schedule and Scope. However, it is necessary to realize that Quality is also one of the major constraints of managing important projects. One should never lose focus of the quality metrics during execution stage and the quality control processes must be sincerely followed. If quality is sacrificed to keep the other three main constraints as required, we can always end up with failed project and then we product not accepted by customer as outcome of a project.

Time, cost, scope and quality