Many time test takers get confuse between Job work and Project. Job Is defined as :
a piece of work, especially a specific task done as part of the routine of one's occupation or for an agreed price:
She gave him the job of mowing the lawn.
Example : Delivering of burger at fast food counter, or home delivery of pizza , or servicing a car
Is Building a another building by a contractor who does this only... can also be categorized as Job work?
Difficult , because the job work based management is based on planned capacity where order keep coming and going, they do not make schedule for each job, they do not collect people for each job , they do not do risk management for each job.
The uncertainty level or uniqueness of the project deliverable varies from project to project, but specific temporary nature of the project requires usage of project management techniques rather than operational management techniques.