The starting point toward modeling of a given electromagnetic (EM) problem is to know the modeling constraints/features of different modeling tools, and hence figure out if they are compatible to meet the intended objectives. In the face of popularity of some modeling tools, due to either marketing strategy or researcher bias, and compounded by lack of empirical data toward bench marking different methods for comparison, an intuitive choice will compromise accuracy, speed and efficiency. In this paper, an attempt is made to present the commonly used computational electromagnetic (CEM) methods in the context of basic parameters and their limiting values that influence the modeling outcome. A prospective researcher can make a checklist of these parameters and customize them fit into the given EM problem. This facilitates the selecting of an optimal method from the many that are available. This is important to mitigate the problem of computation cost that creep in the design/synthesis emanating from wrong choice of the modeling tool, and also, in the perspective of research and development, the life cycle is reduced that add to the economic viability of the modeled prototype. For an entry-level researcher, some level of proficiency in the CEM methods and EM simulators based on these methods enhance the prospect of employment in radio-frequency and microwave industry/research.

建模给定电磁（EM）问题的起点是了解不同建模工具的建模约束/特征，并由此确定它们是否兼容以满足预期目标。面对某些建模工具的流行，由于营销策略或研究者的偏见，再加上缺乏用于基准线标记不同比较方法的经验数据，一个直观的选择将损害准确性，速度和效率。在本文中，尝试在基本参数及其影响建模结果的极限值的背景下介绍常用的计算电磁（CEM）方法。准研究人员可以对这些参数进行核对，并自定义它们以适应给定的EM问题。这有助于从许多可用方法中选择一种最佳方法。这对于减轻因错误选择建模工具而在设计/综合中蔓延的计算成本的问题非常重要，而且从研发的角度来看，生命周期缩短了，从而增加了产品的经济可行性。建模的原型。对于入门级研究人员来说，CEM方法和基于这些方法的EM仿真器的一定水平的熟练程度提高了在射频和微波行业/研究中的就业前景。生命周期缩短，从而增加了建模原型的经济可行性。对于入门级研究人员来说，CEM方法和基于这些方法的EM仿真器的一定水平的熟练程度提高了在射频和微波行业/研究中的就业前景。生命周期缩短，从而增加了建模原型的经济可行性。对于入门级研究人员来说，CEM方法和基于这些方法的EM仿真器的一定水平的熟练程度提高了在射频和微波行业/研究中的就业前景。