事实上，要做好“比较案例研究（ Comparative Case Studies ， CCS ）”非常难。而因为这样的误解的存在，我们许多人士的案例研究是“信手拈来”，随意性极强。
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EJB规范比较成熟，因而有许多优势：众所周知的设计模式、案例研究和最佳实践，还有丰富的供应商支持的开发工具集。
The EJB specification is mature, yielding the benefit of well-known design patterns, case studies, and best practices, as well as a rich set of vendor-supported development tools.
我们使用在Cisco中的案例研究，来确定轻量级技术与规范过程比较的特点。
We used our case study at Cisco to determine how the lightweight techniques compare to the formal processes.
最后以模具生产企业组建虚拟企业为案例，通过比较研究，验证了本文所提出方法的有效性和可行性。
Finally take the mold production sets up the virtual enterprise as the case, through the comparison research, has confirmed the method validity and the feasibility which this article proposed.
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