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Slide bài giảng môn học Quản trị chuỗi cung ứng nội dung chương "Aggregate planning"
Slide bài giảng môn học Quản trị chuỗi cung ứng nội dung chương "Aggregate planning" của Đại học Ngân hàng Thành phố Hồ Chí Minh với những kiến thức và thông tin bổ ích giúp sinh viên tham khảo, ôn luyện và phục vụ nhu cầu học tập của mình cụ thể là có định hướng ôn tập, nắm vững kiến thức môn học và làm bài tốt trong những bài kiểm tra, bài tiểu luận, bài tập kết thúc học phần, từ đó học tập tốt và có kết quả cao cũng như có thể vận dụng tốt những kiến thức mình đã học vào thực tiễn cuộc sống. Mời bạn đọc đón xem!
Quản trị chuỗi cung cứng 8 tài liệu
Đại học ngân hàng Thành phố Hồ Chí Minh 221 tài liệu
Slide bài giảng môn học Quản trị chuỗi cung ứng nội dung chương "Aggregate planning"
Slide bài giảng môn học Quản trị chuỗi cung ứng nội dung chương "Aggregate planning" của Đại học Ngân hàng Thành phố Hồ Chí Minh với những kiến thức và thông tin bổ ích giúp sinh viên tham khảo, ôn luyện và phục vụ nhu cầu học tập của mình cụ thể là có định hướng ôn tập, nắm vững kiến thức môn học và làm bài tốt trong những bài kiểm tra, bài tiểu luận, bài tập kết thúc học phần, từ đó học tập tốt và có kết quả cao cũng như có thể vận dụng tốt những kiến thức mình đã học vào thực tiễn cuộc sống. Mời bạn đọc đón xem!
Môn: Quản trị chuỗi cung cứng 8 tài liệu
Trường: Đại học ngân hàng Thành phố Hồ Chí Minh 221 tài liệu
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Tài liệu khác của Đại học ngân hàng Thành phố Hồ Chí Minh
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lOMoARcPSD| 36782889 AGGREGATE PLANNING Lecture PLANNI NG AND COORDI NATI ON 5 I N THE SUPPLY CHAI N lOMoARcPSD| 36782889 AGGREGATE PLANNING AGGREGATE lOMoARcPSD| 36782889 AGGREGATE PLANNING PLANNING IN A SUPPLY CHAIN 8Introduction lOMoARcPSD| 36782889 AGGREGATE PLANNING
• Why is it interesting to look from lOMoARcPSD| 36782889 AGGREGATE PLANNING
asupply chain perspective to the planning?
• What solutions do organisations
haveto upscale (or down scale) capacity?
• What is the role of ICT related to theplanning issue? lOMoARcPSD| 36782889 AGGREGATE PLANNING Example
• Paper is seasonal product, in spring
more paper is consumed because of
printing the annual year reports.
Running a mill is costly. To optimize
revenues the industry uses aggregate
planning to determine production and inventory levels. lOMoARcPSD| 36782889 AGGREGATE PLANNING Introduction
• Aggregate planning is the process where a company determines planned levels of: – Capacity – Production – Sub-contraction lOMoARcPSD| 36782889 AGGREGATE PLANNING – Inventory – Stock-outs – Pricing Objectives
• Main objectives of aggregate planning are to identify
following operational parameters: lOMoARcPSD| 36782889 AGGREGATE PLANNING
– Production rate –units to produce per time unit – Workforce – Overtime – Machine capacity level – Sub contracting – Backlog – Inventory on hand lOMoARcPSD| 36782889 AGGREGATE PLANIING The planning challenge • Forecast • Production costs
• LabourProduction quantities • Subcontractingfrom:
• Changing capacity• Regular time • Labor/machine hours•
Overtime required per unit• Subcontracting
• Inventory holding costsInventory held
• Stock-out costsBacklog/Stock-outs
• ConstraintsWorkforce hired/laid off
• Limits on overtimeMachine capacity
• Limits on layoffsincrease/decrease • Limits on capital lOMoARcPSD| 36782889 AGGREGATE PLANNING • Limits on stock- outs • Constraints from suppliers Aggregate • Planning • • • • Profitability lOMoARcPSD| 36782889 AGGREGATE PLANNING Aggregate strategies
• Aggregate planning is focusing on three costs:
– Capacity (regular, overtime, subcontracting) – Inventory – Backlog • Three strategies:
– Chase strategy – using capacity as the lever lOMoARcPSD| 36782889 AGGREGATE PLANNING
– Flexibility strategy – using utilization as the lever
– Level strategy – using inventory as the lever
Leveling and chasing demand Level
production Chase demand lOMoARcPSD| 36782889 AGGREGATE PLANNING lOMoARcPSD| 36782889 AGGREGATE PLANNING Constraints
• Workforce, hiring and layoff constraints • Capacity constraints
• Inventory balance constraints
• Overtime limit constraints lOMoARcPSD| 36782889 AGGREGATE PLANNING
Building a master production schedule
• Master Production Schedule (MPS) identifies
allbatches which needs to be produced in each period. • Example: Family Set-up Batch Prod. Prod. Numb. Set-up Prod. time size time quant. set-ups time time A 8 50 5.60 256 5 40 1,433.6 B 6 150 3.00 640 4 24 1,920.0 C 8 100 3.80 512 5 40 1,945.6 lOMoARcPSD| 36782889 AGGREGATE PLANNING D 10 50 4.80 256 5 50 1,228.8 E 6 100 3.60 512 5 30 1.843.2 F 5 75 4.30 384 5 25 1,651,2 The role of IT
• The most early IT supply chain products
wereaggregate planning modules • Advantages of using IT:
– Can go beyond linear programming to solve theproblem lOMoARcPSD| 36782889 AGGREGATE PLANNING
– Possibility to combine with production planning andinventory planning
Implementing aggregate planning
• Today aggregate planning modules are part of ERPpackages.
• Important aspects related to implementation:
– Think beyond the enterprise, focus on supply chain lOMoARcPSD| 36782889 AGGREGATE PLANNING
– Make plans flexible, forecasts are never accurate
– Rerun planning when new data emerges
– Use aggregate planning as capacity increases lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING 9 lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING Introduction lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING •
What can you tell about demand anddemand patterns? • How does demand connect
sales tooperations and the supply chain? •
What solutions do organizations
haveto influence the capacity and/or demand? lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING Example
• Red Tomato Tools is selling
gardenproducts which is seasonal, concentrated in spring.
• Two strategies for managinginventory: – Producing only during season,leaving plant capacity unused lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING
– Producing flat during year
absorbingsales fluctuation via stock Predictable variability
• Predictable variability is change in demand that canbe forecasted.
• Objective: balance supply with demand maximizingprofitability by: lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING
– Manage supply using capacity, inventory,subcontracting
– Manage demand using short-term price discounts andpromotions Managing supply
• A firm can manage supply by following factors: – Production capacity lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING –Inventory Customer Inventory Capacity lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING Managing capacity
• Firms can manage capacity by using a combination of:
– Time flexibility from workforce – Use of seasonal workforce – Use of subcontracting – Use of dual facilities
– Design product flexibility in the process lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING Managing inventory
• Firms can manage capacity by using a combination of:
– Using common components across multiple products
– Build inventory of high-demand or predictable- demandproducts lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING Managing demand
• Supply chains can manage demand by using acombination of: – Pricing – Promotion lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING
• Note: Promotion decisions are mostly made byretailers
without taking into account the impact on the rest of the supply chain.
Factors influencing timing of promotion
• Four key factors influencing promotion:
– Impact of the promotion on demand – Cost of holding inventory
– Cost of changing the capacity level – Product margins lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING
• The increase in demand comes from: – Market growth – Stealing share – Forward buying
Implementing sales & operations planning
• Important aspects related to implementation:
– Coordinate planning across enterprises in the supplychain
– Take predictable variability into account when makingstrategic decisions lOMoARcPSD| 36782889 SALES AND OPERATIONS PLANNING
– Design S&OP to understand and manage the drivers ofdemand usage
– Ensure that S&OP process modifies plans as the realityof forecasts changes