Problem: Can you help create a value stream map for the current operation at a Starbucks store, with reference to the article "Starbucks Is Rethinking Almost Everything, Including How to Make Frappuccinos" from Wall Street Journal. You can assume key numbers or information if they are not available in the article.
1. Please follow the conventions, for example, upper right corner for customers.
2. Include material and information flow, label the process time and waiting time for different stages.
3. Calculate key indexes (e.g., takt time, processing time) for improvement plan.