CAJ | 학술논문

针对产品开发过程中存在的耦合迭代情况,建立了动态环境下基于混合迭代的耦合集求解模型.该模型考虑了任务执行工期的不确定性、任务输出分支的不确定性和资源分配的不确定性对项目完成时间和开发成本的影响,通过引入一个资源分配矩阵 K,采用任务返工概率矩阵和任务返工量矩阵确定任务的执行状态和返工工作量.最后,通过实例仿真计算项目的时间和成本的分布.计算结果表明,资源不确定性对耦合集执行时间和开发成本有很大的影响,对资源进行重新分配有利于减少任务执行时间,降低开发成本.
침대산품개발과정중존재적우합질대정황,건립료동태배경하기우혼합질대적우합집구해모형.해모형고필료임무집행공기적불학정성、임무수출분지적불학정성화자원분배적불학정성대항목완성시간화개발성본적영향,통과인입일개자원분배구진 K,채용임무반공개솔구진화임무반공량구진학정임무적집행상태화반공공작량.최후,통과실례방진계산항목적시간화성본적분포.계산결과표명,자원불학정성대우합집집행시간화개발성본유흔대적영향,대자원진행중신분배유리우감소임무집행시간,강저개발성본.
Aiming at coupling iteration existing in product development process,the coupled sets solving model based on hybrid iteration under dynamic environment was established.In this model,the effects of uncertain tasks'duratioas,output embranchments and resource allocation on duration and project cost were considered.At the same time,task rework probability matrix and task rework workload matrix under a resource allocation matrix K were used to determine the execution status of tasks and rework workloads.Finally,simulation was conducted to compute project duration and cost distribution.Computation results indicated that the uncertainty of resources had a significant impact on both execution time of coupled sets and development cost.As a result,reallocation of resources could reduce the duration and development costs.