Job costing involves the calculation of costs involved in a construction `job` or the manufacturing of goods done in discrete batches. These costs are recorded in ledger accounts throughout the life of the job or batch and are then summarized in the final trial balance before the preparing of the job cost or batch manufacturing statement. == Job.....
A system of calculating the cost of each individual job or project carried out by a business, includes time, labour, materials, etc
A system of costing which accumulates costs for each job separately.
In business, job costing is the attribution of separate costs to each job undertaken. This method of costing is particularly used in engineering, when a variety of different jobs are undertaken and there is no homogeneous product.
Accounting method used to track construction work that is completed and measures whether the amount of activity aligns to the project budget.
Cost accounting method which tracks work completed and measures if activity costs align with the overall budget. 
Job costing is an expense monitoring system that assigns manufacturing costs to each product, enabling managers to keep track of expenses.