The choice of the structure depends on the size of the company, the way the organization is structured influence to manage and run the project. I think functional structure organization is a common type of organization structure where the team members work for the specific department such as engineering, human resource, Information technology. In functional structure Easy to coordinate events within a department. It is easy to coordinate events within a department and the projects are done within the department. In this the decision is usually made by one person. It works well for the small team and small projects. It is quick to get everyone together to resolve problems and queries related to the project.