Conducting an internal audit is the first step. Understand which software applications your organization is using and you could possibly replace with SaaS applications. Then you can begin to prioritize based on costs and ease of transition. With older or no longer being developed software packages, you might focus on cost first. However, applications that are still actively supported by the vendor or that have a new feature set that your organization needs should be a higher priority. Next, determine how you will pay for SaaS. This could mean using the software for free for a trial period and then making a decision about a full purchase. Or, it could mean finding funding for a full purchase up-front. This is different for every organization and will be based on the benefit of the software and the ROI you expect to see.