To start, gather information about the target customer, competitors, and skill-sets which are needed to implement your ideas and then, device a strategy business start up plan which can help to determine a few milestones. Try to find out the sources and uses of funds that will be required. Take decisions about how and when to create revenue, build capital and manage cash.
Conduct customer research where you can estimate how many, and what type of customer, you will be able to attract, and what price you can charge for your products or services. Launch time should be appropriate, and try to use innovative methods to maintain the continuity in your actions.