Combining the traditional methods of market demand forecasts , such as linear regression , gray system , generalized weighted proportional combination forecasting , the author also have analysed and forecasted the actual example in this paper , which clearly response the applied logic of using petri net model to resolve the question of market demand forecasts . the founded model of petri net in resolving market demand forecasts has the characteristic of pertinence and universality . the key issue of those important problems often occurred in marketing is the market mix decision and regulate - control analysis and the question of how to enhance the market share of products is the foundation to resolve this issue 论文还结合线性回归、灰色系统、广义加权平均组合预测等传统市场预测方法对实例进行了分析和预测，充分清楚地反映了应用petri网模型进行市场营销需求预测的应用逻辑，所建模型对于解决市场需求预测问题具有较强的针对性和普遍性；市场营销组合决策和调控分析是市场营销众多问题中的一个重点，如何有效提高产品的市场占有率是该问题的出发点。
In this paper , marketing mix decision model has been constructed by the application of artificial neutral network technique . on the basis of finding of two new method integrating both artificial neutral network and petri net techniques , regulate - control models have also been built . besides deeply analyzing each model , a pragmatical analysis has been practiced by introducing the products that is priced at about 10 yuan in xi ' an cigarette market as an example , the methods of enhance the market share of products also be given 本文建立了市场营销组合的人工神经网络模型，在寻找到两种人工神经网络与petri网技术整合新方法的基础上，构建了企业市场营销组合决策的调控模型，除了对各个模型进行深入的分析外，还以西安市烟草市场销售价格在10元左右的产品为例进行了具体的研究和分析，提出了提高产品市场占有率的方法，具有一定的现实意义；最后，论文描述了应用现代编程方法开发一个方便、实用的petri网图形编辑和仿真工具的过程，为论文研究工作的顺利提供了保证，也为今后petri网理论和应用的相关科研工作奠定了基础。
Based on the above - mentioned matter , the application of toc to the product mix problem was studied home in this article . the product mix decision problem was divided into simplex resource constrains and manifold resources constrains by enterprise ’ constrain resources , and their solution steps according to toc ’ s five key steps ameliorated were presented . some material examples were solved by toc ’ s five steps technique , linear programming ’ s simplex method and familiar accounting technique ( variational cost technique and full cost technique ) 文章依据企业约束资源的多寡,将产品组合决策问题分单一资源约束与多种资源约束两种情况进行了讨论,通过对约束理论五步骤法的适当调整,给出了它们各自的约束理论解法的解题步骤,结合具体的算例,分别利用约束理论五步骤法、线性规划的单纯形解法和常见的会计学的变动成本法和完全成本法进行了求解,并对约束理论解法、线性规划解法和会计学解法进行了适当的比较分析,证明了产品组合决策问题约束理论解法的有效性和先进性。
The product mix decision ( pmd ) , solved by toc technique , is defined how to deal with the product mix ( pm ) of the enterprise to achieve maximize profit with some resources constrains in a certain period , while on the side of the enterprise system , on the kernel principle of the system ’ s resources holistic optimization , and by virtue of critical constraint resource ( ccr ) 产品组合决策的约束理论解法就是解决在一定资源约束条件下,站在企业系统的角度,以系统的整体资源优化为核心原则,通过对关键约束资源的关注,合理安排产品组合,以实现一定时间段内企业收益最大的问题。
