MATERIAL RESOURCE
PLANNING
Pendahuluan
Definisi
Tujuan
Perencanaan Kebutuhan Kapasitas
Apa yang terjadi jika
JIP tidak dapat
direalisasikan ?
Apa yang terjadi
jika peralatan
dalam manufaktur
bermasalah ?
Apa yang terjadi jika
vendor bermasalah
dengan pasokan
bahan baku ?
PERTANYAAN / MASALAH
YANG
SERINGKALI TIMBUL
DALAM
SIKLUS
MANUFAKTUR
MRP-I
THE HEART OF
MRP-II SYSTEM
DIAGRAM
ALIR
MRP-II
YANG TERMASUK
DALAM MRP - II
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Peramalan
Pemasukan pesanan pelanggan
Perencanana produksi/JIP
Stuktur produk / BOM
Pengendalian persediaan
MRP
Perencanaan Kapasitas
Shop Floor Control
Purchasing
Accounting
Analisa finansial
TUJUAN
• The purpose of an MRP system is to
reduce the cash needed by a
manufacturing organization. This
increases the organization's return on
investment, directly making the
manufacturer a more profitable, atractive
invesment.
• In a classical manufacturing organization,
huge amounts of cash are tied up in inprocess inventory, parts, that must be
assembled and then sold. MRP uses
planning and management to reduce this
cash to the minimum.
• The basic idea is simple. A sales or marketing
group estimates how many products it will sell at
a future time. The MRP software back-dates
using the factory's estimated time to assemble
each product. Then, the system explodes the
product into lists of parts needed, using the bills
of materials developed by Engineering. The
parts are ordered at times back-dated from the
assembly dates. Finally, the cash flow of the
above ordering, assembly, ship and payment
process is developed.
• The system provides reports about
which parts are needed to ship an
order. If a high-value order is waiting
for a few cheap parts, the planner can
ask for the parts to be flow in by airfreight, and usually this will improve
profits and return on investment.
INPUT
– A sales estimate for each product.
– A bill of materials for each product.
– An assembly time for each product.
– A complete on-hand inventory of all parts.
– Estimated delays from order to receipt for
each part, for each vendor that supplies the
part.
– Estimated proces for each part, by vendor
and shipment method.
– Inventory deposits and withdrawls.
OUTPUT
– Needed parts to complete a valuable order.
– Invoicing or electronic data interchange to
order parts early enough to meet sales
forecasts.
– Inventory management data.