Another major difference between projects and operations is that projects are characterised by a definite beginning and ending while operations are repetitive and ongoing. Projects usually end when the objectives of the projects are achieved. This implies that the project duration is finite as opposed to the operations activities that are continuous. However, this does not necessarily mean that they are short lived. For instance, a large construction company is contracted to complete construction of a large commercial complex for setting up offices. In this scenario, in order to complete the construction project of commercial complex, a business owner who hires the construction company to construct the complex, will usually specify a definite date of start and completion of the building. From the point of view of the construction company, this unique construction opportunity is a project that has certain time constraints. However, procuring of the building materials and other necessary equipments that are not unique to this particular construction project are known as the operations. These activities are repetitive and do not have a fixed time constraint.