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MATERI IX. KEWIRAUSAHAAN. PRODUKSI & OPERASIONAL. 5 ISSUES That arise when trying to produce a product or service. Capacity (How much can I produce?) Scheduling (How am I going to do it?) Inventory (How much the efficient inventory is there?) Standards
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MATERI IX KEWIRAUSAHAAN PRODUKSI & OPERASIONAL
5 ISSUESThat arise when trying to produce a product or service Capacity (How much can I produce?) Scheduling (How am I going to do it?) Inventory (How much the efficient inventory is there?) Standards (Efficient production and quality output?) Control (Is the production process working?)
The Six M’s of Capacity 1.Methods - Have you chosen the best method of accomplishing the operational task? - Are the machines placed in the most efficient factory floor configuration? 2. Materials - Are the materials you need available and of good quality? - Do you have capability to purchase efficiently, store, and distribute the material when needed by the production process? 3. Manpower - Do you have well-trained and productive workers and managers to accomplish your productions goals? - Are your worker sufficiently trained to operate any new technology that you may acquire?
The Six M’s of Capacity (continued) 4. Machinery - Do you have the right tool for the job? - Do your machines meet your need; capability, speed, reliability, technology? 5. Money - Is the cash to fund production available as needed? - Is the investment in factories, equipment and inventories justified in light of the entire organization’s opportunities? - Does the project cash flow justify the investment? (a finance question) 6. Messages - Do you have a system for sharing accurate and timely information among all members of the production team – people and machine? - A machine needs to electronically share information about output and quality on assembly line with its operator, as well as with other machines.
3 Types ofProduction Methods • Continuous Process • Assembly Line • Job Shop
scheduling • Critical Path Method (CPM)
CPM Arrange each task or activity in sequential order and estimate the time needed to complete each one. Each time a task begins or is completed it is called an event. 2 A = 2 wks C = 3 wks 1 3 4 5 B = 4 wks 1 wk Slack time D = 1 wk E = 1 wk
Inventory The Balancing Act. The optimal inventory level is a delicate balancing act. Inventory decisions are tough because different departments of the same company have different goals. InventoryVocabulary • Raw Materials(flour, sugar, egg, etc) • Work in Process(pastry in the oven, pastry on cooling trays, etc) • Finished Goods(cakes, cookies, and donuts ready for sale) Value added by labor & overhead while in progress Finished goods, labor & overhead Raw Materials Work in progress materials Finished goods materials
Five Major Reasons for Holding Inventory • Pipeline (inventory on hand to minimize production delay and maximize efficiency) • Cycle (suppliers have minimum order that are greater than immediate need) • Safety (stocks held to avoid shortage because of uncertain production demands. Stockout cost money when production is halted) • Anticipatory (Inventory held in anticipation of known demand) • Speculative (items purchased to beat supplier price increases)
Economic Order Quantity (EOQ) 2 costs associated with inventory • Carrying Costs (The costs associated with storage, insurance, and financing of inventory) • Ordering Costs (the cost of ordering that include all accounting and clerical labor and materials associated with placing and order) Total Cost (Item + Holding + Ordering Holding Cost Item Cost Ordering Cost EOQ
R = Annual unit requirements O = Cost of placing and order C = Cost of carrying a unit of inventory per period (2 x R x O) EOQ = C Economic Order Quantity (EOQ) The Formula Sales history indicates that a level demand of 2,000 unit throughout the year. Each time order it cost $14 to process the order. A detail study of costs reveals that it cost $.50 to carry each unit in inventory for a year. The formula calculates the most economic inventory order as 335 unit. Since the demand 2,000 unit, this means that there will be about 6 orders per year (2000/355). 2 x 2000 x $14 EOQ = 50 = 335 units
PENUTUP • Produksi dan operasional merupakan kegiatan lainnya dalam suatu entiti bisnis. • Dalam memproduksi sesuatu, selain dari efektifitas dan efisiensi proses produksi, diperlukan pula manajemen persediaan (baik persediaan bahan baku, bahan dalam proses maupun persediaan barang jadi).
MATERI IX SEKIAN • Selain membaca buku, majalah, tabloit atau sumber referensi lainnya, dianjurakan untuk memperkaya referensi dengan mengunjungi situs-situs yang berhubungan, misalnya : • http://www.geocities.com/agus_lecturer/kompren/komprem_operasional.htm • http://www.britannica.com/eb/article-9106305/production-management • Note : gunakan kata kunci “manajemen produksi”, “production management” atau yang lain untuk browse di search engine PRODUKSI & OPERASIONAL