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+.. django e-commerce site specification
+
+E-Commerce site
+===============
+
+Site administration
+-------------------
+
+-   Admins can add, modify, or delete products available for purchase.
+-   Admins can deactivate/activate any registered user account, except other
+    administrators' accounts.
+
+Account registration and authentication
+---------------------------------------
+
+-   Anonymous users will have access to products list page and product details.
+-   Anonymous users can register a new customer account, or login to the
+    existing one account.
+-   While registering a new account users must provide their username, email
+    address and password. Password should be confirmed by re-typing it to
+    the specified field to avoid typos.
+-   Authenticated users will be forced logout after certain time of being
+    inactive.
+
+Purchase
+--------
+
+.. todo
+
+Purchase history
+----------------
+
+.. todo
+
+Refund
+------
+
+.. todo