基于DSM的产品研发项目进度规划研究

Project Schedule Optimization Based on DSM in Overlapped Development Process

摘要:

开发活动间具有耦合性。耦合活动重叠会导致活动间信息交互频繁,产生返工风险。合理计算项目进度对指导实践具有重要意义。利用设计结构矩阵(DSM)描述产品开发活动并利用高斯消去算法进行活动排序,保证整体周期最短。引入迭代学习率,并结合上下游活动之间信息交互方式和影响构建了项目进度计算模型。通过案例计算表明,耦合活动重叠方式能有效缩短项目工期,与传统方法相比,模型考虑了活动之间信息迭代,更加符合工程实践。

Abstract:

Development activities are coupled. Overlapping of coupled activities will lead to frequent information exchange and rework risk. Rational calculation of project schedule is of great significance to practice. Using design structure matrix (DSM) description of the product development activities and using the Gaussian elimination algorithm to sort the activities which is to ensure the overall cycle is the shortest. Basing on the introduction of iterative learning rate, the article constructs the calculation model of the project schedule combined with the information interaction and influence between upstream and downstream activities. Through the case calculation, it is indicated that overlapping of coupled activities can shorten the project duration effectively. Compared with the traditional method, the calculation model is more accord with the engineering practice.