Other than co-operation, competition is a central issue in industry and commerce today, which always exists among enterprises that provide homogeneous products or services. The competitive relationships of enterprises determine the rivalry nature of dominant interactions among them; that is, rivalry actions are the main interactions while co-operation actions generally occur on an occasional basis and do not essentially change this competitive nature of their relationships. This paper reports a detailed study of a competitive relationship network of 578 certified Independent Software Vendors (ISVs) in Guangzhou city, China, which shows some prominent scale-free (SF) structural properties and complex dynamical behaviors. In this report, the economic background and the significance the competitive relationship network model will be described; the underlying dynamical mechanism of the network model will be analyzed, showing some advantages of the new model for industrial organization theory (IO) over the traditional ones. Finally, some related issues, such as the static properties of the competitive relationship network and some of its graph properties, will be discussed.

硬系统方法论以寻优过程为特点，用以处理人造系统问题；切克兰德软系统方法论以学习过程为特点，用以处理硬人类活动系统问题。本文探讨了用以处理软人类活动系统问题的、以利益协调过程为特点的软系统方法论逻辑步骤，并对以上三种方法论进行了综合比较。

企业集群现象引起了国内外经济与管理学界的高度重视。本文首先介绍一种评价企业集群竞争力的基础-企业-市场（Groundings-Enterprises-Markets，GEM）模型，然后应用此模型对广东省狮岭皮具企业集群进行了评价，最后对评价结果做了分析。

用两种方式对Cook-Seiford社会选择函数进行了扩展，解决了一般的社会选择函数只处理群体决策而不直接涉及多准则的决策问题。然后用于对广东省IT产业2005-2010年重点发展技术的选择。

In this paper first analyzed is software industry scenario of Guangdong province, China (GD) in 2000-2005. Then a model, which is based on industry scenario method and Analytical Hierarchy Analysis (AHP) and about the strategy choice of enterprises under highly uncertain conditions, is raised.