As a Software Developer, you need to look at things from a broader perspective in order to gain a bigger picture of what your internal customer (department), or external customer (client) really wants. In the early stages of the software development cycle, you may find that a feasibility study might be required. Even though Salesforce's CRM and Marketing Cloud offerings are already commercialized, there will be opportunities for new initiatives for both internal products and customer offerings. There are two important factors to consider before determining whether or not a feasibility study is required. A feasibility study is really broken down into two important categories. The first is Technical in nature, and the second is an Operational view. An interviewer wants to know if you follow protocol by offering a feasibility study to the client or just go through the motions of your job. It's important to make mention of this in your interview because it helps crystallize in the interviewer's mind that you go above and beyond the norm to get the job done right. Again, the interviewer is asking for your opinion, so it's important to express your opinion with an explanation of why you think it should or shouldn't be performed.