What is Discrete Manufacturing, REM and Demand
1. What is Discrete Manufacturing? 2. What is REM? 3. What is Demand Management?
Here are difference between Discrete and REM and small explanation about
discrete and repetative manf.:
- A typical characteristic of discrete manufacturing is the frequent
switching from one manufactured product to another. The products are typically
manufactured in individually defined lots, the sequence of work centers through
production varying for each one of these. Costs are calculated on the basis of
orders and individual lots.
- In Repetitive Manufacturing, products remain unchanged over a longer period
and are not manufactured in individually defined lots. Instead, a total quantity
is produced over a certain period at a certain rate.
- Discrete manufacturing typically involves varying the sequence of work
centers through which the products can pass during production. The order of work
centers is determined in routings, which can often be very complex. There can be
waiting times between the individual work centers. Also, semi-finished products
are frequently placed in interim storage prior to further processing.
- Repetitive Manufacturing, on the other hand, normally involves a relatively
constant flow on production lines. Semi-finished products are usually processed
further immediately without being put in interim storage. Routings tend to be
- In discrete manufacturing, component materials are staged with specific
reference to the individual production lots. Completion confirmations for the
various steps and processes document the work progress and enable fine-tune
- In Repetitive Manufacturing, components are often staged at the production
line without reference to a particular order. Completion confirmations are less
detailed, and the recording of actual data is simplified.
- The function of Demand Management is to determine requirement quantities
and delivery dates for finished products assemblies. Customer requirements are
created in sales order management. To create a demand program, Demand Management
uses planned independent requirements and customer requirements.
To create the demand program, you must define the planning strategy for a
product. Planning strategies represent the methods of production for planning
and manufacturing or procuring a product.
Using these strategies, you can decide if production is triggered by sales
orders (make-to-order production), or if it is not triggered by sales orders
(make-to-stock production).You can have sales orders and stock orders in the
demand program. If the production time is long in relation to the standard
market delivery time, you can produce the product or certain assemblies before
there are sales orders. In this case, sales quantities are planned, for example,
with the aid of a sales forecast.