To improve such deficiency, a method of Activity-based Costing may be more appropriate than the traditional cost accounting method for the cost analysis and assessment. Theoretically, the particular technique assumes that a different
customer may have different service requirements,which in return must seek for the necessary resources and facilities in different utilization level to respond to its requirements. In such a case, an individual service rendered to a specific customer is offered in the extent to which the resources are utilized in the different level as compared with a
similar service offered to a different customer having the same requirements, but in a different service level. This implies that a level of services may be diversified in accordance with the customers requirements and expectations