Facebook doesn't allow users to purchase "likes", our social network will have this.
Sponsor: to raise investments. Developer: to earn money by programming. Users: to share photos and purchase popularity. Bank: to make commission on every purchase. Government: to protect society against abusive content. Competitors: to wipe us off the market.
User can create account, upload photos, share photos, send personal messages, like other photos, purchase likes. Admin can ban user accounts, view summary reports, authorize credit card transactions, configure system parameters, monitor server resource usage. Bank can process credit card transactions.
Any page must open in less than 300ms. User interface must be attractive and simple. Availability must be over 99.999%. Test coverage must be over 80%. Development pipeline must be fully automated. Interfaces must include web site and iOS/Android app.