I'm not sure I understand your question correctly, usually a 100% of the Project Manager's time. In case of a hybrid (let's say developer and Project Manager at the same time) then it should be as long as it takes, the Project Management function of the employee should be his/her priority. Make sure you do all your job functions as a Project Manager otherwise, the project will probably fail.
Project Management is a very serious profession and should not be taken lightly.
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I agree that project management is a very serioud profession. The percentage "overhead" of project management to a project is however largely depending on the nature of a project, e.g. how many people are working on the project, complexity, budget, etc.
If a project has one developer working full time for 3 months, it sure doesn't need a project manager also working full time to manage just one developer. In this example, the percentage overhead would be 50% of project (1 out of 2 full time resources is doing only project management).
what is slack in project management
What it really about is, the way that you manage yourself to allocate the 24 hours.
Program Management does not equate Project Management. Put it simply, Program Management is about handling multiple projects at the same time to serve a strategic, broader business need, while Project Management is about managing and focusing on (usually) one project at the time. A Program Manager usually oversees Project Managers.
Project Management Consultancy is when a Project Manager is not a full time worker, but rather he's paid for a certain project and/or for a certain period.
time management and resource management
what is slack in project management
What it really about is, the way that you manage yourself to allocate the 24 hours.
Program Management does not equate Project Management. Put it simply, Program Management is about handling multiple projects at the same time to serve a strategic, broader business need, while Project Management is about managing and focusing on (usually) one project at the time. A Program Manager usually oversees Project Managers.
-Project Charter -Project management information systems -Change control procedures -Time management plan
Time management plan Project charter Change control procedures project management information systems
Time management plan Project charter Change control procedures project management information systems
Project Management Consultancy is when a Project Manager is not a full time worker, but rather he's paid for a certain project and/or for a certain period.
time management and resource management
Change control procedures Project management information systems Time management plan Project charter
Project management training teaches management-level employees time management and tools to use while managing a project. It improves the ability of a manager to handle the responsility of a project.
I think the question implies that you believe that Project Management is an evolution of normal, traditional management.Project Management is about a managing a project with a defined length (in time), cost, and specification. Project Management is said to be about 90% communications (thus the importance), as the Project Manager usually has to communicate to a lot of people (stakeholders, employees, etc...), in order to get his/her project done.
Enterprise Project Management systems organizes projects and features estimations of time, information on the progress of the project, to-do lists and delegation of the parts of a project.