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Aggregate planning

Aggregate planning. Input : capacity constraints financial constraints demand forecasts objectives, strategies and policies. Output : size of workforce production/month inventory levels units or bahts subcontracted back ordered. Purchasing system. 3. Capacity requirements

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Aggregate planning

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  1. Aggregate planning • Input : • capacity constraints • financial constraints • demand forecasts • objectives, strategies and policies. • Output : • size of workforce • production/month • inventory levels • units or bahts subcontracted • back ordered.

  2. Purchasing system 3. Capacity requirements planning Bill of material file Customer order file Reports Sales forecast file 2. Material requirements planning system 4. Order release system 1. Production scheduling system Master production schedule Planed order schedule Finished- goods inventory file Reports Production capacity file Raw materials inventory file Shop floor control system Reports Manufacturing Information System MRP System Aggregate planning

  3. Output subsystems Input subsystems Production subsystem Accounting information system Internal sources Inventory subsystem Industrial engineering subsystem Database Users Quality subsystem Environmental sources Manufacturing intelligence subsystem Cost subsystem Data Information Manufacturing Information System • A model of a manufacturing information system

  4. Receiving area 1 Receiving inspection 2 Raw-materials storeroom 3 4 5 Shop floor area 8 7 6 9 10 Finished-goods storeroom 11 Shipping area 12 Manufacturing Information System Terminal • Accounting Information System

  5. Manufacturing Information System • Industrial Engineering Subsystem • IE’s work involves the setting up of production standard and are compared to actual performance. • Manufacturing Intelligence Subsystem • Labor information • Supplier information • Supplier input : Financial strength, past quality and delivery performance, and so on. • Quality control input : Units rejected upon receipt, units rejected during production, reasons for rejection, etc. • Customer service input : Units replaced or repaired because of defective parts, supplier spare parts availability, and so on.

  6. Manufacturing Information System • Production Subsystem • Production flows • Bill of material • Production schedule • Inventory Subsystem • The importance of inventory level • Maintenance costs/carrying cost(spoilage, pilferage, obsolescence, taxes and insurance) • Purchasing costs • Economic order quantity (EOQ) • Economic manufacturing quantity (EMQ)

  7. Manufacturing Information System • Quality Subsystem • Quality control inspectors • Total Quality Management • Company wide • Systematic • Scientific • Cost Subsystem • Preventive maintenance (PM) • Breakdown hours

  8. Management Information Systems Summary Question & Answer

  9. General System Model i Standards Computer-based Information Systems Information Decisions Information processor Management Accounting Information Systems Data Management Information Systems Transformation process Output resources Input resources 4 M Decision Support Systems Office Automation Systems Expert Systems Finance function Human resources function Information services function Manufac- turing function Marketing function

  10. General System Model Business Information Systems Model i Input Output Standards Internal Information Decisions Information processor Management External Data Transformation process Output resources Input resources 4 M Finance function Human resources function Information services function Manufac- turing function Marketing function

  11. Output subsystems Input subsystems Product subsystem Accounting information system Internal sources Place subsystem Marketing research subsystem Promotion subsystem Database Users Price subsystem Environmental sources Marketing intelligence subsystem Integrated-mix subsystem Data Information Marketing Information Systems A model of a Manufacturing Information Systems

  12. Human resources research subsystem Human resources intelligence subsystem Industrial engineering subsystem Manufacturing intelligence subsystem Input subsystems Output subsystems Work force planning subsystem Accounting information system Product subsystem Recruiting subsystem Marketing research subsystem Internal audit subsystem Place subsystem Work force subsystem Production subsystem Financial intelligence subsystem Marketing intelligence subsystem Forecasting subsystem Promotion subsystem Inventory subsystem Compensation subsystem Funds management subsystem Benefits subsystem Quality subsystem Price subsystem Environmental reporting subsystem Integrated-mix subsystem Cost subsystem Control subsystem

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