On-demand Catering Service: To expand its restaurant franchise business, McDean is now offering catering service to its customers. Customers may order food three hours before an event, and the food will be delivered to customers on time. Customers may order online or on a mobile app. To increase sales among young adults, McDean is offering to waive its delivery fee if customers present their eCoupons upon delivery. To shorten your development time, your team has decided to hire three full time software engineers and three interns from UWB at the beginning of the project. Your team has also agreed to use the latest web development frameworks (e.g., Django) and technologies which can automatically generate some of the code. Your team will also coordinate with another team who is working on the backend database. Which SDLC should you use for this?