Android App (customer interface design)

Description

This is the customer interface side of the app, where the customer can look for items that they intend to buy, order them, specify their details, and see the status of the order.

Functional requirements

1. The customer shall be able to register a new account.
2. The customer shall be able to login and logout on their registered account.
3. The customer shall be able to know when their order has arrived.
4. The customer shall be able to enter their delivery address.
5. The customer shall be able to update their login credentials.
6. The customer shall be able to choose an item for purchase.
7. The customer shall be able to enter their payment details.
8. The customer shall be able to place their order.

Non-Functional requirements

1. The customer should have at least 8 characters in their password.
2. The customer should find it easy to use the app, according to at least 70 points score in SUS questionnaire results of user-testing.
3. The application must be compatible with the operational system of the customer.

Example scenario

A customer wants to log into the app, and order a medicine. The customer pays for the medicine, enters their address and orders successfully. Then the customer wants to see the status of their order.