1. design a "log in","sign up", and"log out" page. (front end)
2. create a home page with several tabs. (front end)
3. provide a "log in", "sign up" API. (back end)
4. Create user inform table. (database)
5. Add identification in "sign up" page.

As a buyer, I want to search a house to buy or rent based on several filters.

Task:

1. Create a page contains several buttons.
2. Create search button and input box.

As a buyer, I want to compare two houses so that I can tell which one is better.

As a buyer, I want to save house resources.

Task:

1. Create a star button in each house page.
2. Create a compare button in "my favorite" page.

As a buyer, I want to be able to contact with house sellers.

Task:

1. Create a contact button or link in each house page.

As a buyer, I want to see all house sources on the map.

Task:

1. Create a form to show the map.

1. Create a form to allow seller update the house information.
2. Update the house images, description, location. (inform)
3. Create a new item in database table.

1. Add free tag in each house page.
2. Create new column in house table database.