STOCK SIMULATOR

Table of Contents

1. Overview
2. Product Spec
3. Wireframes
4. Schema

Overview

Description

Stock Simulator that allows users to trade with fake balance. Users can view their portfolio performance, search for stocks, "buy" and "sell" stocks, and view leaderboards and portfolio's of others.

App Evaluation

• Category: Finance
• Mobile: Real time data and push notifications
• Story: Learning experience for investers who want to understand the market before investing real money
• Market: The app is targeted at users who want to get into the stock market but are afraid to lose real money
• Habit: Users will be compelled to track the progress over their portfolio.
• Scope: The MVP of the app should be completed by the end of the course. Many if not all of the bonus stories can also be completed by the end of the course. We have identified all the core features of the app that will allow users to practice investing. We have also identified features that will promote interaction between users.

Product Spec

1. User Stories (Required and Optional)

Required Must-have Stories

• User can login
• User can register for new account
• User can view portfolio overview
• User can search
• User can view stock details
• User can view stock's performance over time
• User can view profile/settings
• User can use fake currency for buying/selling stocks

Optional Nice-to-have Stories

• User can view others via the social tab
• User can view other profiles
• User can compete in Leaderboards
• User can follow others
• User can unfollow others
• User can trade Crypto Currencies
• User has access to Learning Resources
• User can trade Options
• User can change profile image/username/password
• User receives push notifications for stock performance

2. Screen Archetypes

• Login Screen
  • User can login
  • User can register
• Home Screen/ Portfolio Overview
  • User can see portfolio performance
• Search
  • User can search for stocks by ticker or company name
  • User can search for others by Username
• Detail
  • User can see stock details
  • Stock's performance over time is charted
  • User can "buy" or "sell" stock
• Stream
  • User can see leaderboards they are a part of
  • User can see profiles of people they are following
• Profile/ Settings
  • User can manage fake currency balance
  • Settings

3. Navigation

Tab Navigation (Tab to Screen)

• Home Screen/Portfolio
• Stock Search
• Social
• Profile/Settings

Flow Navigation (Screen to Screen)

• Login Screen
  • Home Screen / Portfolio Overview
• Home Screen
  • Stock Details Screen
• Search Screen
  • Stock Details Screen
• Social Screen
  • User Searching Screen
  • Profile Screen for Other Users
• User Searching Screen
  • Profile Screen for Other Users

Wireframes

Highlighted in yellow are the bonus stories

[BONUS] Digital Wireframes & Mockups

[BONUS] Interactive Prototype

Schema

Models

User

Property	Type	Description
objectId	String	unique id for the user post (default field)
username	String	login name
password	String	Login crediential
balance	Double	current balance of fake currency
profile_image	File	image tied to user's account
portfolio	Pointer to Portfolio	portfolio of the user
following	array	array of pointers to users

Portfolio

Property	Type	Description
user	Pointer to User	owner of the portfolio
ticker	String	name of the stock
quantity	Int	how many of this stock is bought
date_bought_at	Date	when stock was purchased
price_bought_at	Double	stock's purchase price

Networking

List of network requests by screen

• Home Screen/Portfolio Overview
  • (Read/GET) Query all tickers in portfolio

    let query = PFQuery(className:"Portfolio")
    query.whereKey("user", equalTo: currentUser)
    query.findObjectsInBackground { (tickers: [PFObject]?, error: Error?) in
       if let error = error { 
          print(error.localizedDescription)
       } else if let tickers = tickers {
          print("Successfully retrieved \(tickers.count) tickers.")
      // TODO: Do something with posts...
       }
    }

  • (Read/GET) Query balance of user
  • (Read/GET) Query current prices of stocks
• Stock Detail
  • (Create/POST) Add ticker and date to portfolio when bought
  • (Update/PUT) Increase or decrease quantity of stock
  • (Delete) Delete ticker from portfolio when all is sold
  • (Read/GET) Query information about stock including prices, quantity, changes, etc
• Profile Screen
  • (Read/GET) Query logged in user object
  • (Read/GET) Query username and balance of user

Demos