1. Demand analysis
This is an account recording and analysis app. The main functions of this system are: user login and registration, home page bill analysis, upload bill, search bill information, personal information, reset password, and data validation.
System function diagram
System overall use case diagram
2. System development platform environment
IDE：Android Studio 2021.1.x
Plugin: simpleUMLCE
Tool: Visustin v8 Demo
Java version: Java11
OS：win11
Database：SQLite 5.4
3. System function class diagram
Use the UML plug-in to draw class diagrams,
simpleUMLCE: In the IDE plug-in, enter UML to search and download simpleUMLCE. Since the IDE version is too new, you may not be able to find it. You can also select and install other UML plug-ins in the search results, and use them according to the plug-in instructions.
System function class diagram
System Flow Diagram
4. Module flow chart (or module class diagram)
Here we only draw a flow chart of a relatively important class. For other classes, you can use the Visustin v8 Demo tool to draw according to the online tutorial.
Visustin v8 Demo download address: Aivosto downloads - Analyze, document and flowchart your code 
https://www.aivosto.com/download.html
IndexActivity flow chart
5. Database design
ER diagram
| User table (user) |
||||||||
| field |
type of data |
scope |
Data Sources |
special requirements |
foreign key |
required fields |
the case |
Remark |
| id |
integer |
0~ |
self-increment |
no need to insert |
Y |
1 |
Id |
|
| username |
text |
0~ |
user input |
Y |
3191904123 |
account |
||
| password |
text |
6 digits~ |
user input |
Password length is greater than 6 characters |
Y |
123456 |
password |
|
| phone |
text |
11 bits |
user input |
real number required |
Y |
17012345678 |
Phone number |
|
| bill table (income) |
||||||||
| field |
type of data |
scope |
Data Sources |
special requirements |
foreign key |
required fields |
the case |
Remark |
| id |
integer |
0~ |
self-increment |
no need to insert |
Y |
1 |
Id |
|
| username |
text |
0~ |
user input |
Y |
Y |
3191904123 |
username |
|
| money |
text |
0~ |
user input |
Password length is greater than 6 characters |
Y |
123.00 |
the amount |
|
| type |
text |
0~ |
user input |
real number required |
Y |
income |
type |
|
| date |
text |
0~ |
system generated |
don't have to fill in |
Y |
2022-5-20 |
date |
|
| note |
text |
0~ |
user input |
Y |
bonus |
Remark |
||
6. System interface
Seven, system testing
| Module Test Form |
||||
| test module |
Input data |
Output Data |
operate |
Test Results |
| Log in |
Account: 123456 Password: 123456 |
Account number: 123456 Number: 15812345678 |
Database Conditional Query |
login successful |
| register |
Account: 123456 Password: 123456 Number: 15812345678 |
database insert |
registration success |
|
| reset Password |
Password: 000000 Number: 15812345678 |
database update |
reset successful |
|
| Main Page Billing Analysis |
Income + Payout + Tips |
Database query + analysis |
The query is successful + the income and expenditure status is good |
|
| Record |
Username: 1 Amount: 23 Type: Income Time: 2022-05-20 Remarks: None |
database insert |
Submitted successfully |
|
| search |
Username: 1 |
Username: 1 Amount: 23 Type: Income Time: 2021.09.12 Remarks: None |
Database Conditional Query |
Search succeeded |
| mine |
Account number: 123456 Number: 15812345678 |
Account number: 123456 Number: 15812345678 |
Pass by value MainActivity=》IndexActivity=》MineFragmen |
Personal information shows success |
| Test page jump |
||||
| current page |
jump page |
event |
jump direction |
Test Results |
| log in page |
front page |
Log in |
unidirectional |
Y |
| log in page |
registration page |
register |
two-way |
Y |
| log in page |
reset password page |
forget the password |
two-way |
Y |
| front page |
record page |
Record |
two-way |
Y |
| front page |
search page |
search |
two-way |
Y |
| front page |
my page |
mine |
two-way |
Y |
| my page |
reset password page |
reset Password |
unidirectional |
Y |
8. Personal summary
Summary...
9. References
[1] Introduction to Database System (Fourth Edition) [M]. Beijing: Higher Education Press, 2006:5
[2] Basic Course of UML Object-Oriented Design and Analysis [M]. Beijing: Tsinghua University Press, 2007.7
[3] Android application design [M]. Beijing: Tsinghua University Press, 2013.10
X. Appendix
Source address 1: Topskys/Android-TrackTable (github.com) https://github.com/Topskys/Android-TrackTable
Source address 2:
For learning reference only.
This small android project may have many deficiencies, I hope it can help everyone, thank you for watching!
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