E-learning programs in corporations are increasing dramatically every year. According to the American Society for Training & Development, more than 80% of most companies will adopt e-learning solutions within 3-4 years, and 70-80% of their training programs will be in e-learning. Currently, IBM runs over 10,000 courses in e-learning format and cut more than $3 millian training budget a year. Among many successful factors for corporation s e-learning, such as high quality contents, social interactions, enough budget, timely marketing, support, and incentives, instructional design strategies are the top priorities to consider to produce the best result from e-learning solutions. This paper introduces many different types of e-learning design models to apply them to various purpose of training programs. All of these models are to focus on reducing time and budget. The e-learning design is also essentially cyclical process, and subsequently approaching to excellent leaning results. ROI(Return on Investment) is another important object to achieve. After analyzing many e-learning design models, this paper suggests the optimum model for Korean corporate settings considering Korean corporate s environmental specificities such as frequent job rotations, lack of experts in HRD department, and etc. To be more effective, variety of e-learning design models should be developed to fit custom-built programs for better learning outcomes.