Means of Evaluating Erp Efficiency in the Area of Technical Preparation of Production
Mechanical engineering companies which manufacture complex products (CNC machine tools, production lines) require a long implementation time, preparation of complicated technical documentation and total involvement of construction and technology engineers throughout the whole design and production process. The data used in the major area of such enterprises come mainly from departments involved in the preparation of technical production. The area of technical production preparation generates the largest volume of data in the ERP system. This stems from the prototypical nature of products and the necessity to create new construction and technology specifications virtually for each order separately. One of the major files in ERP systems is the material index file. Material indices, including standards of use, comprise a bill of materials. This is a basis for establishing demand for materials according to the Material Requirements Planning (MRP). Bills of materials are supplemented with technological operations, which is necessary for planning of production and balancing production capacity. The contribution of technical production preparation is important from the point of view of the budget and implementation schedule for the order. Thus, the design construction and technology for a product should be planned and registered in the ERP system. The costs of qualified engineering labour and depreciation of CAD and CAE software packages are high, moreover labour consumption while designing prototypes may reach thousands of working hours. For this reason, employees of design and technology areas should register the number of working hours spent on each project . While developing the bill of materials and technologies, engineers deal with the monitoring of standard manufacturing costs. In this article an evaluation method of ERP efficiency in the area of the technical preparation of production is presented. The method is elaborated on the basis of the experience of many implementations of ERP systems of industrial engineering companies.(original abstract)
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