Welcome to the third course of the Data Analytics for Business Specialization. In this course, we describe how data analytics is used to create models for decision making. The goal for this course is to make the transition from predictive models to prescriptive models. As the name indicates, prescriptive analytic models prescribe courses of action. This is done by establishing an objective in the set of constraints. The course creates a bridge between predicting outcomes, and prescribing solutions to business problems. In Module one, we started with cluster analysis. As my colleagues Dave and Dan did in previous courses, I will follow the same approach of introducing modeling and analysis techniques within the context of business applications. For cluster analysis, we will focus on market segmentation. The main idea in market segmentation is to divide a broad market into segments or clusters. The technique produces groups whose members have similar needs, interests, and priorities. These help companies design a specific strategies. For example, an advertising campaign, or a set of promotions, to target each market segment. In the second model, we examine the main techniques to deal with uncertainty in business problems. We will discuss why using average values for something that we don't know, for example demand, is not always the best idea. Overbooking will be the main business application in this module. This is the perfect example for this module, because the uncertainty of whether a customer will show up for an appointment, or a hotel reservation, or a flight, has immediate revenue implications. In the third module, we will learn how to develop and solve optimization models. Optimization is a core technique in prescriptive analytics. This makes a lot of sense, because you want models that are able to find the best possible course of action for a given objective. The beauty of optimization is that it is capable of examining a very large number of possible solutions to a problem. So it does something that would require a lot of effort if we had to do it by trial and error. We will use a transportation problem and a decision problem in digital advertising, to illustrate how optimization models work. Simulation optimization, the topic of module four, is one of my favorite things to teach. In the Masters of Business Analytics here at the University of Colorado, Leeds School of Business, we spend more time in this topic than the time that we're going to be able to spend in this course. However, you will get a good overview of the main concepts. The reason this is so exciting, is that it combines simulation and optimization. Simulation allows you to model uncertainty, and when you combine it with optimization, you're able to determine the best course of action in the face of uncertainty. I am glad that you're doing this specialization, and that you're ready for this third course. I hope that you enjoyed taking it as much as I have enjoyed putting it together.