• Built for multi-tenancy• Pay as you go, end user apps

• Application frameworks / services – varying models• One or more developer languages

• Pay as you go, typically by storage, CPU, bandwidth• Virtual machines and low-level services

Web roleWeb role Worker roleWorker roleWeb role Worker role

LBStorage

LB

Web Site(ASPX, ASMX,

WCF)

Web Site(ASPX, ASMX,

WCF)

Web Role(ASPX, WCF)

Worker ServiceWorker Role

Blobs Tables

……

Queues

StorageTables Blobs

Queue

Web RoleWeb Role Worker RoleWorker Role

StorageQueue

LB LB

Worker RoleWorker RoleWorker RoleWorker RoleWeb RoleWeb Role

Worker RoleWorker Role