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关键词： RCCP， 粗略产能计划
RCCP的技术被用来确认在每个工作站中适合的产能，此技术是用来发展机器负载报告，以决定所需产能，若产能不适当时，可被使用之产能的决定以及该采取的对策。RCCP应用三种方式以机器负载报告来定义产能需求。
1. Capacity planning using overall factors(CPOF)：所需数据和计算最少。
2. The Bill of Labor approach(BOL)：使用每个产品在主要资源的标准工时之详细数据。标准工时是一个正常工人以平常的步调工作，生产一项产品一个单位再加上宽放的时间。所有零件的标准工时已经考?休息的宽放、延迟的宽放等。
3. Resource Profile Approach(RPA)：除了标准工时的数据外，尚需要考虑前置时间。
Basically there are three approaches to perform rough cut capacity plannin
These can be summarized as follows
a) Capacity planning using overall factors(CPOF)
It is the least detailed approach. Capacity requirement is quickly computed but is
insensitive to shifts in product mix
b) "Bill of labor"(or bill of required types of machine hours)ap
It involves multiplying two matrices,the bill of labor and the"master
production schedule". This approach picks up shifts in product mix, but does not
consider lead time offsets. It strictly assumes a lot-for-lot policy for setting lo
sizes. When other techniques, such as economic order quantity etc is used, then
this approach gives a very rough estimate
c)“ Resource Profile” approach
It is exactly same as" Bill of labor approach", except that it takes lead-time
offsets into account. Again, it strictly assumes a lot-for-lot policy for setting lot
sizes as in the case of bill of labor approach
For the above indicated reasons, the bill of labor" approach is recommended
because it is easily implemented on a personal computer and is just as accurate as
the more cumbersome " resource profile approach
In any event, rough cut capacity planning should be used only to determine if
sufficient capacity exists over broad time frames such as a month or a
The role of capacity planning in the production planning and control
An overview of the entire manufacturing planning and control (MPC) process
based on MRP is given in Figure 2. Within this process, capacity management
techniques are usually separated into four categories as
a) resource requirements planning(RRP).
b) rough cut capacity planning(RCCP
c) capacity requirements planning(CRP), and
d) input/ output control
In fact, these capacity management techniques represent the four planning time
horizons considered. In a typical MRP system the general sequence is: to create a
master schedule, use rough cut capacity planning to verify that the MPs is
feasible, perform the MRP explosion, and send planned order release data to
capacity requirements planning
压缩中的数据文件包括：
RCCP.rar
(2.46 MB, 需要: RMB 48 元)
本人在外资公司，多年从事Operation excellence, continuous improvement, Lean six sigma, 负责公司全球规划的起草、修正、绩效成果的分析。
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作者： Hetairae
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