Job production is also called as jobbing or one-off production. Production 
            planning and costing factors will vary from job to job according to the 
            customers need and specifications. Each job or set of jobs will be treated 
            separately and work designing, raw material proportion and consumption, machine 
            and labour cost will be calculated each time for a customer specification based 
            job production. Single or more quantities of a product may be produced under 
            this method for a specific customer. Machinery manufactures, fabrication units, 
            vehicle body building unit are example for adopting such production methodology. 
            Costing and profitably factors and proportions will be calculated on each job 
            according the specification and design of work assigned.