Vaughn Engineering Services Inc.Vaughn Engineering Services (VES) creates six-month “rolling” aggregate plans,which arerecomputed monthly.For competitive reasons (they would need to divulge proprietarydesign criteria,methods,etc.),VES does not su

Vaughn Engineering Services Inc.Vaughn Engineering Services (VES) creates six-month “rolling” aggregate plans,which arerecomputed monthly.For competitive reasons (they would need to divulge proprietarydesign criteria,methods,etc.),VES does not su
Vaughn Engineering Services Inc.
Vaughn Engineering Services (VES) creates six-month “rolling” aggregate plans,which are
recomputed monthly.For competitive reasons (they would need to divulge proprietary
design criteria,methods,etc.),VES does not subcontract any of its services.Therefore,
VES’ only options to meet customer requirements are:
1) Work on regular time;
2) Work on overtime,which is limited to 30% of regular time;
3) Satisfy some of the customers’ requirements early – which involves an additional
“cost” [in the form of a discount offered on usual engineering service fees charged]
of $6 per hour per month that the engineering service is performed earlier than
required; or
4) Satisfy some of the customers’ requirements late,which involves a penalty
[deductible from the usual engineering service fees charged] of $10 per hour per
month that the engineering work is performed late—as provided in a penalty clause
in the service contract.
VES employs 25 engineers on its staff – working eight hours per day – at an average rate of
$50 per hour.Overtime rate is at 150% of regular time rate.Customers’ expected
engineering services requirements (in engineer-hours) for the next six months are as follows:
February March April May June July
3,500 4,000 6,000 6,000 5,000 4,500
Assume that there 20 working days in each month.Develop an aggregate plan for VES for
the coming six months using an appropriate mathematical programming model which
minimizes total relevant costs,such that all requirements are exactly met by the end of the
planning horizon.
Obviously,the engineer-hours cannot be inventoried,so one cannot refer to beginning or
ending inventory levels.The optimal aggregate plan – in its “simple format” – should
indicate for each month the total number of service hours performed either in excess or
short of customers’ requirements for that month.Attach as separate exhibits the appropriate
computer printouts and worksheets which form the basis for your optimal aggregate plan.

Vaughn Engineering Services Inc.Vaughn Engineering Services (VES) creates six-month “rolling” aggregate plans,which arerecomputed monthly.For competitive reasons (they would need to divulge proprietarydesign criteria,methods,etc.),VES does not su
公司工程服务沃恩,
沃恩)创建以及工程服务(六个月的"滚动“聚集体计划,这是作为
recomputed月刊.因为竞争原因(他们需要透露专有的
设计标准、方法等),以及任何不分包合同其服务.因此,
选择的唯一的支撑,以满足客户的要求是:
1)固定的时间工作.
2)工作加班,局限于30%的固定的时间.
3)满足客户需要的一些很早——包括额外的
“成本”[的形式提供折扣通常的工程服务收费]
每小时每6美元的工程服务月早些时候进行
要求;或
4)满足客户需要的一些,涉及到晚些时候点球
[可抵扣来自平常的工程服务收费]每小时每10美元
月进行工程late-as提供一个惩罚条款
服务合同.
雇佣了25个工程师以及其员工,工作每天8小时,平均增长率
50美元每小时.在加时赛的150%率是固定的时间率.客户的预期
工程服务要求(在engineer-hours)在以后的6个月...