Banknote

Overview
Product Spec
Wireframes
Schema

Overview

Description

This is a mobile app that tracks a user's various bank accounts from multiple banks and makes financial calculations based on the information found in those accounts. Such calculations could be related to spending, budgeting, investing, etc.

App Evaluation

[Evaluation of your app across the following attributes]

Category: Finance
Mobile: Since accounts must be updated on the regular for proper and correct financial operations/calculations to be done, the app will have real-time updating. Push notifications would be utilized to give the user information after updates.
Story: There is a functional value in this app related to giving users beneficial financial information. For someone who would like to be more financially responsible or literate, this app would fill that role.
Market: Any one with multiple bank accounts and is interested in recording and/or analyzing their spending would be in the potential market for this app. This app would provide great value for people who travel often or have multiple income sources, for example.
Habit: Frequency: whenever they spend or on a daily basis to check spending habits. Usage: just consuming.
Scope: It will be fairly technically challenging based on the fact that multiple APIs for multiple banks must be utilized and security and authentication must be maintained for all of these accounts at all times. Furthermore, complex mathematical functions might be created to provide the user with the financial information required.

Product Spec

1. User Stories (Required and Optional)

Required Must-have Stories

- User can login to an account in the app
- User can register an account within the app
- User can link bank account(s) to app
- Weekly/monthly analysis (charts and graphs) of spending and budgeting of all accounts
- Record different kinds of currency
- User can change their password

Optional Nice-to-have Stories

- Link news articles concerning the market and other finance related topics.
- Have an education section with quick links to useful YouTube videos.
- Utilize bank APIs for account information

2. Screen Archetypes

Login Screen
- User logs into the app
Registration Screen
- User can create a new account
Accounts Screen
- User can select an account to view
Individual Account Screen
- User can view their recent transactions from their account
Spending Analysis Screen
- User can view weekly/monthly spending summaries
Settings Screen
- User can view and change settings
News Screen
- User can scroll through financially relevant news
Add a new Account Screen
- User can link a new bank account to view in Accounts Screen
Bank Selection Screen
- User can see a list of the most popular banks in the US.

3. Navigation

Tab Navigation (Tab to Screen)

Accounts Screen
Spending Analysis Screen
Settings Screen
News Screen (Optional)

Flow Navigation (Screen to Screen)

Log In Screen
- => Accounts Screen
- => Registration Screen
Registration Screen
- => Accounts Screen
- => Log In Screen
Accounts Screen
- => Individual Account Screen
- => Settings Screen
- => Spending Analysis Screen
- => News Screen (Optional)
Settings Screen
- => Accounts Screen
- => Add a new Account Screen
Spending Analysis Screen
- => Accounts Screen
Individual Account Screen
- => Accounts Screen
Add a new Account Screen
- => Settings Screen
- => Bank Selection Screen
Bank Selection Screen
- => Add a new Account Screen

Wireframes

[BONUS] Digital Wireframes & Mockups

[BONUS] Interactive Prototype

Schema

Models

User

Property	Type	Description
username	String	Name of user
password	String	password
push notifs	Boolean	allows push

Account

Property	Type	Description
user	Pointer to User	User associated with acct
bank	String	Name of bank
account number	Number	Account number
account password	String	Account password
balance	Number	Balance of account
transactions	[Pointer to Transaction]	Transactions associated with account

Transaction

Property	Type	Description
account	Pointer to Account	Account associated with transaction
date	DateTime	date of transaction
balance	Number	dollar amount of transaction
isSpending	Boolean	is transaction positive/negative

Article

Property	Type	Description
headline	String	headline of news article
content	String	content of news article
category	String	category of news article
creation date	DateTime	creation date of news article

Summary

Property	Type	Description
date	DateTime	date of summary
spending	[Pointer to Account]	total of all spending
income	[Pointer to Account]	total of all income

Analysis

Property	Type	Description
summaries	[Pointer to Summary]	summaries for analysis
type	Number	0 = day, 1 = weekly, 2 = monthly

Networking

Registration Screen

CRUD	HTTP Verb	Example
Create	POST	create user

private void registerUser(String username, String password) {
	ParseUser user = new ParseUser();
	user.setUsername(username);
	user.setPassword(password);
	user.signUpInBackground(new SignUpCallback() {
		@Override
		public void done(ParseException e) {
			if (e != null) {
				// Toast : "Failed to Register your credentials"
				Log.e(TAG, "Issue with signing up", e);
				return;
			}
				// Toast : "Welcome!"
			    // go to main activity
		}
	});
}

Accounts Screen

CRUD	HTTP Verb	Example
Read	GET	get all accounts

protected void queryAccounts() {
	ParseQuery<Account> query = ParseQuery.getQuery(Account.class);
	query.findInBackground(new FindCallback<Post>() {
		@Override
		public void done(List<Account> accounts, ParseException e) {
			if (e != null) {
				Log.e(TAG, "Issue with getting accounts", e);
				return;
			}
			// allAccounts is input for an adapter
			allAccounts.addAll(account);
			// adapter in onViewCreated() for AccountsFragment.java
			adapter.notifyDataSetChanged();
		}
	});
}

Add a New Account Screen

CRUD	HTTP Verb	Example
Create	POST	create account

protected void postAccount(ParseUser currentUser, String name, Long accountNumber, String password, Long balance) {
	Account account = new Account();
	account.setUser(currentUser);
	account.setBankName(name);
	account.setAccountNumber(accountNumber);
	account.setAccountPassword(password);
	account.setAccountBalance(balance);
	account.saveInBackground(new SaveCallback() {
		@Override
		public void done(ParseException e) {
			if (e != null) {
				Log.e(TAG, "Error while saving", e);
				// Toast: "Could not add account."
			}
			Log.i(TAG, "Post save was successful!");
			// Maybe clear out text views
		}
	});
}

Individual Account Screen

CRUD	HTTP Verb	Example
Read	GET	get information on an account
Delete	DELETE	delete account
Create	POST	create transaction
Read	GET	get transaction
Update	PUT	update transaction
Delete	DELETE	delete transaction

/* Getting information on an account */ 
// subject to change
protected void queryAccount() {
	ParseQuery<Account> query = ParseQuery.getQuery("accountName");
	query.getInBackground("accountId", new GetCallback<Account>() {
		public void done(Account account, ParseException e) {
			if (e != null) {
			  // something went wrong 
			} 
			// Do the magic here
		}
	});
}

/* Deleting an account */ 
account.deleteInBackground();
   
/* Creating a transaction */ 
protected void postTransaction(Account account, String date, Long balance, boolean isSpending) {
	Transaction transaction = new Transaction();
	account.setAccount(account);
	account.setDate(date);
	account.setBalance(balance);
	account.setSpending(isSpending);
	account.saveInBackground(new SaveCallback() {
		@Override
		public void done(ParseException e) {
			if (e != null) {
				Log.e(TAG, "Error while saving", e);
				// Toast: "Could not add transaction."
			}
			Log.i(TAG, "Save was successful!");
			// Maybe clear out text views
		}
	});
}

/* Getting a transaction */ 
// subject to change
protected void queryAccount() {
	ParseQuery<Transaction> query = ParseQuery.getQuery("transactionName");
	query.getInBackground("transactionId", new GetCallback<Transaction>() {
		public void done(Transaction transaction, ParseException e) {
			if (e != null) {
			  // something went wrong 
			} 
			// Do the magic here
		}
	});
}

/* Updating a transaction */ 
// subject to change
ParseQuery<Transaction> query = ParseQuery.getQuery("transactionName");
// Retrieve the object by id
query.getInBackground("xWMyZ4YEGZ (objectId)", new GetCallback<Transaction>() {
	public void done(Transaction transaction, ParseException e) {
		if (e != null) {
			// something went wrong	
		}
	// Now let's update it with some new data. In this case, only balance and isSpending
	// will get sent to your Parse Server. date hasn't changed.
	transaction.put("balance", 100.00);
	transaction.put("isSpending", false);
	transaction.saveInBackground();
	}
});


/* Deleting a transaction */ 
transaction.deleteInBackground();

Spending Analysis Screen

CRUD	HTTP Verb	Example
Read	GET	get analysis
Update	PUT	update analysis

/* Getting an analysis */ 
// subject to change
ParseQuery<Analysis> query = ParseQuery.getQuery("analysis");
query.getInBackground("analysisID", new GetCallback<Analysis>() {
	public void done(Analysis analysis, ParseException e) {
		if (e != null) {
		  // something went wrong 
		} 
		// Do the magic here
	}
});

/* Updating an analysis */ 
// subject to change
ParseQuery<Analysis> query = ParseQuery.getQuery("analysis");
// Retrieve the object by id
query.getInBackground("xWMyZ4YEGZ (objectId)", new GetCallback<Analysis>() {
	public void done(Analysis analysis, ParseException e) {
		if (e != null) {
			// something went wrong	
		}
	analysis.put("type", 2);
	analysis.saveInBackground();
	}
});

Settings Screen

CRUD	HTTP Verb	Example
Update	PUT	update user push preference

/* Updating Settings */ 
// subject to change
ParseQuery<Setting> query = ParseQuery.getQuery("setting");
// Retrieve the object by id
query.getInBackground("xWMyZ4YEGZ (objectId)", new GetCallback<Setting>() {
	public void done(Setting setting, ParseException e) {
		if (e != null) {
			// something went wrong	
		}
	setting.put("push_preference", true);
	setting.saveInBackground();
	}
});

Optional News Screen

CRUD	HTTP Verb	Example
Create	POST	create news articles (from API)
Read	GET	get all news articles
Update	PUT	update news article
Delete	DELETE	delete news article(s)

KrustyKrab-UCSD/Banknote