Demand planning: existing market research, market research of new product development direction
Development and realization: functional testing, target customers looking for trial
Bulk listing: new product promotion, major customer recommendation meetings, new product launches, roadshows, endorsement recommendations, advertising
Iteration: customer satisfaction survey, supplier recommendation, cost survey, channel survey, etc.
Delisting: user evaluation, after-sales cost survey, after-sales outsourcing, alternative design, etc.