What are the basic components of a successful product launch?

"I have participated in numerous product launches, and most of them have been very successful. I've learned from these that it all begins with effective research on both the product and the market. A well-designed product that functions properly and meets the customer's needs will move you 80% through a successful launch. Other components include a targeted and comprehensive marketing plan, developing brand awareness and preferences, training the sales team on the product features and benefits, and using product sampling to initiate interest and demand."