The deliverable for this step should reference the work previously completed, n

The deliverable for this step should reference the work previously completed, namely the problem statement report and the theoretic approach. You might have several models because a problem can be solved multiple ways. For example, profit can be increased by lowering average cost, increasing demand, or decreasing the price elasticity of demand combined with a price increase. In each of these approaches, you will have different data needs. 
For example, if the problem is that profits are dropping because of decreasing demand, then a deficiency may be a better understanding of the consumer market and what affects preferences for the product. Or another deficiency might be the need to understand how international political and trade relations affect exports of the product. The main part of this deliverable should be a consideration of what further information is needed to address the question and what you hope that information will help you understand.
 The deliverable for this step should reference the work previously completed, namely the problem statement report and the theoretic approach. You might have several models because a problem can be solved multiple ways. For example, profit can be increased by lowering average cost, increasing demand, or decreasing the price elasticity of demand combined with a price increase. In each of these approaches, you will have different data needs. For example, if the problem is that profits are dropping because of decreasing demand, then a deficiency may be a better understanding of the consumer market and what affects preferences for the product. Or another deficiency might be the need to understand how international political and trade relations affect exports of the product. The main part of this deliverable should be a consideration of what further information is needed to address the question and what you hope that information will help you understand.
  Seek quantitative and qualitative information. Quantitative data consists of numerical information. Examples may be an estimate of the dollar effect of the problem on profit or sales. Qualitative information is nonnumeric and consists of things you observed or read such as the implications of a pending piece of legislation or a change in consumer preferences toward or against a product.