Extreme Programming by FZU Flying Club

[FZU_Flying_Club]

Catalogues

• 1 Project address
• 2 Screenshot of Github's commit logs and Count the number of commits
• 3 Function implementation idea description
• 3.1 User Login Registration Module
• 3.2 Interest Rate Calculator Module
• 3.3 Scientific Calculator Module
• 4 Screenshots and full run video program
• 4.1 User login registration module AND Scientific calculator module
• 4.1.1 Screenshots
• 4.1.2 Video
• 4.2 Interest rate calculator module
• 4.2.1 Screenshots
• 4.2.2 Video
• 5 Division of labor
• 5.1 User Login Registration Module
• 5.2 Interest Rate Calculator Module
• 5.3 Scientific Calculator Module
• 6 Evaluation form
• 7 Difficulty description and PSP form (each team member)
• 7.1 Team Member 1: Zhang Qin
• 7.1.1 Difficulties encountered in cooperation and solutions
• 7.1.2 PSP form
• 7.2 Team Member 2: Zhao Pan
• 7.2.1 Difficulties encountered in cooperation and solutions
• 7.2.2 PSP form
• 7.3 Team Member 3: Hu Jiachen
• 7.3.1 Difficulties encountered in cooperation and solutions
• 7.3.2 PSP form
• 7.4 Team Member 4: Yi Li
• 7.4.1 Difficulties encountered in cooperation and solutions
• 7.4.2 PSP form
• 7.5 Team Member 5: Peng Houming
• 7.5.1 Difficulties encountered in cooperation and solutions
• 7.5.2 PSP form
• 7.6 Team Member 6: Liu Yiqi
• 7.6.1 Difficulties encountered in cooperation and solutions
• 7.6.2 PSP form
• 7.7 Team Member 7: Yin Xiangbin
• 7.7.1 Difficulties encountered in cooperation and solutions
• 7.7.2 PSP form
• 7.8 Team Member 8: Chen Zhenggang
• 7.8.1 Difficulties encountered in cooperation and solutions
• 7.8.2 PSP form
• 7.9 Team Member 9: Zhang Jiayang
• 7.9.1 Difficulties encountered in cooperation and solutions
• 7.9.2 PSP form
• 7.10 Team Member 10: Chen Jinghua
• 7.10.1 Difficulties encountered in cooperation and solutions
• 7.10.2 PSP form
• 7.11 Team Member 11: Chen Yuheng
• 7.11.1 Difficulties encountered in cooperation and solutions
• 7.11.2 PSP form

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Course for This Assignment	EE308FZ Software Engineering https://bbs.csdn.net/forums/ssynkqtd-04
Team Name	FZU Flying Club
Assignment Requirements	https://bbs.csdn.net/topics/617593156
Objectives of This Assignment	Understanding Extreme Programming, improving software development literacy, fostering teamwork, and improving software programming efficiency
Other References	None

1 Project address

https://github.com/HenzieTorre/Extreme-programming

2 Screenshot of Github's commit logs and Count the number of commits

The number of commits: 25+
The screenshots contains only part of the commits record:

Project repository creator:

Project Participating Developers:

3 Function implementation idea description

3.1 User Login Registration Module

First of all each person needs to create a user for himself, from the login meet jump to the registration interface, the user's account password will be stored by us in the database, each newly created user's account password exists in the database. After successfully registering a user and logging in, the user can jump to the scientific calculator. Front-end using CSS, JS, HTML, back-end using JAVA language (servlet, mybatis), database using mySQL.

3.2 Interest Rate Calculator Module

For The Interest Rate Calculator Function 1: Interest rate calculator contains "Calculate", "Clear", "Modify", "Back "four buttons, two input boxes "enter the amount (yuan)", "enter the length of time (months)", the output box is "interest (yuan)". The user can calculate the interest rate by clicking the "Calculate" button. The interest rate is divided into "Deposit" and "Loan", and the interest rate for deposit and loan is different, which is saved in two separate data tables. Among them, the deposit includes fixed-term and demand, their interest rates are also different, see the first table of the project requirements.

For Interest Rate Calculator Function 2: The backend is implemented using the nodejs express framework, Database using mysql, Add a Modify Interest Rate button to the Interest Rate Calculator to implement the function of interest rate modification and modify the data in the tables to meet the task requirements.

3.3 Scientific Calculator Module

Scientific Calculator is not only capable of simple four operations, but also some complex mathematical operations, such as trigonometric functions and squaring functions. In addition, the scientific calculator is able to call the user's history, scientific calculator to do to be able to view the history of each registered user, to do a user corresponds to a history, different users have different history. The front-end uses HTML, CSS and JS files, back-end using JAVA language (servlet, mybatis), and the database uses mySQL.

4 Screenshots and full run video program

4.1 User login registration module AND Scientific calculator module

4.1.1 Screenshots

4.1.2 Video

[video(video-uLja9Fli-1700407883244)(type-bilibili)(url-https://player.bilibili.com/player.html?aid=578662289)(image-https://img-blog.csdnimg.cn/img_convert/79990a4465d0efc33ec5c0f561386642.jpeg)(title-Demonstration Of User registration and login interface and scientific calculator)]

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4.2 Interest rate calculator module

4.2.1 Screenshots

Interest rate calculator:

Modified interest rate:

4.2.2 Video

[video(video-9TMZvtp9-1700404180466)(type-bilibili)(url-https://player.bilibili.com/player.html?aid=536207778)(image-https://img-blog.csdnimg.cn/img_convert/3ade2bf8b429d022fdbe8c45117bbcbd.jpeg)(title-Interest rate calculator)]

[video(video-ea0Drmv5-1700404210852)(type-bilibili)(url-https://player.bilibili.com/player.html?aid=833665216)(image-https://img-blog.csdnimg.cn/img_convert/3b0d1970274726835cc4614b8413ff03.jpeg)(title-Modified interest rate)]

5 Division of labor

5.1 User Login Registration Module

Zhang Qin： User login module UI design, user registration module UI design, user login front-end code implementation
Zhang Jiayang： User Login Front-end Code Implementation, User Registration Front-end Code Implementation
Peng Houming： User registration front-end code implementation
Chen Yuheng： User Login Registration Module Backend Database Implementation

5.2 Interest Rate Calculator Module

Zhao Pan： Interest rate calculator UI design, Interest rate calculator front-end code implementation
Yin Xiangbin： Front-end code implementation of interest rate calculator
Chen Zhenggang： Back-end database implementation of Interest Rate Calculator
Chen Jinghua： Database implementation of interest rate calculator backend

5.3 Scientific Calculator Module

Yi Li： UI design of scientific calculator, front-end code implementation of scientific calculator
Hu Jiachen： Scientific calculator front-end code implementation
Liu Yiqi： Scientific calculator back-end database implementation

6 Evaluation form

Student ID	Name	Work Description	Contribution
832102212	张钦（QIN ZHANG）	User login module UI design, user registration module UI design, user login front-end code implementation	10%
832102227	彭厚铭（HOUMING PENG）	User registration front-end code implementation	6%
832101223	胡佳辰（JIACHEN HU）	Scientific calculator front-end code implementation	6%
832101221	易立（LI YI）	UI design of scientific calculator, front-end code implementation of scientific calculator	6%
832102221	赵攀（PAN ZHAO）	Interest rate calculator UI design, Interest rate calculator front-end code implementation	6%
832102213	张嘉扬（JIAYANG ZHANG）	User Login Front-end Code Implementation, User Registration Front-end Code Implementation	11%
832102214	陈正罡（ZHENGGANG CHEN）	Back-end database implementation of Interest Rate Calculator	11%
832102215	陈宇恒（YUHENG CHEN）	User Login Registration Module Backend Database Implementation	11%
832102219	陈敬华（JINGHUA CHEN）	Database implementation of interest rate calculator backend	11%
832102205	尹相斌（XIANGBIN YIN）	Front-end code implementation of interest rate calculator	11%
832102206	刘译祺（YIQI LIU）	Scientific calculator back-end database implementation	11%

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7 Difficulty description and PSP form (each team member)

7.1 Team Member 1: Zhang Qin

7.1.1 Difficulties encountered in cooperation and solutions

Problem 1: In the pre-extreme programming phase, communication between team members was not very smooth, and everyone's schedules were cumbersome and inconvenient.

Solution: A team meeting was held to briefly communicate the task assignments with describing the task requirements clearly to ensure that everyone understood the requirements and goals of the task. And coordinate the time to set the deadline time for each task.

Problem 2: I also encountered technical challenges in the programming tasks, such as understanding the database and how to implement the user login function, as well as how to create a reasonable and comfortable UI interface.

Solution: I will support and share my experience with each other and with team members, and participate in the discussions of the development team. In short, when encountering technical difficulties, I will seek help and find solutions together.

Problem 3: In terms of time management, due to extreme programming, there is not much time left for our team to complete the project, the deadline is relatively advanced, and the tasks need to be completed in a short period of time, which leads to increased pressure on my time management.

Solution: I divide my personal tasks into small manageable parts, check progress regularly, create a good and reasonable timetable to complete my tasks, and make timely adjustments to the plan based on the progress of the tasks to ensure that I complete the tasks within the given time.

7.1.2 PSP form

Personal Software Process Stages	Estimated Time（minutes）	Actual Time（minutes）
Planning	10	10
• Estimate	10	10
Development	240	300
• Analysis	15	15
• Design Spec	5	5
• Design Review	10	10
• Coding Standard	10	10
• Design	20	20
• Coding	140	200
• Code Review	30	30
• Test	10	10
Reporting	30	30
• Test Repor	15	15
• Size Measurement	10	10
• Postmortem & Process Improvement Plan	5	5
Sum	280	340

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7.2 Team Member 2: Zhao Pan

7.2.1 Difficulties encountered in cooperation and solutions

In Extreme Programming, I initially struggled to adapt to pair programming. However, continuous communication and guidance from team members helped me overcome this challenge.

7.2.2 PSP form

Personal Software Process Stages	Estimated Time（minutes）	Actual Time（minutes）
Planning
• Estimate	30	30
Development
• Analysis	30	40
• Design Spec	10	15
• Design Review	5	5
• Coding Standard	10	10
• Design	20	20
• Coding	120	120
• Code Review	30	30
• Test	20	15
Reporting	60	90
• Test Repor	10	10
• Size Measurement	20	10
• Postmortem & Process Improvement Plan	20	20
Sum	385	415

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7.3 Team Member 3: Hu Jiachen

7.3.1 Difficulties encountered in cooperation and solutions

Problems:

1. The role and division of labour are unclear.

Solutions:

1. Clarify the roles and responsibilities of each team member and ensure that everyone is clear about their own scope of work.
2. Encourage team members to support and cooperate with each other to ensure a clear division of tasks.

7.3.2 PSP form

Personal Software Process Stages	Estimated time (minutes)	Actual time (minutes)
Planning	10	5
Estimate	10	10
Development	60	90
Analysis	30	20
Design Spec	30	20
Design Review	30	10
Coding Standard	30	5
Design	30	20
Coding	60	50
Code Review	30	30
Test	30	40
Test Report	10	20
Size Measurement	10	10
Postmortem & Process Improvement Plan	30	20
Total	400	350

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7.4 Team Member 4: Yi Li

7.4.1 Difficulties encountered in cooperation and solutions

At the beginning of the project, the requirements were not explained simply and clearly enough, resulting in differences in understanding among members. It was only after a period of time that it was discovered that many of the things written could not be combined for use. After discovering the problem, the team increased the number of team meetings and requested a simple and intuitive description of how the project needs to proceed at each meeting to ensure that the team has the same direction.

7.4.2 PSP form

Personal Software Process Stages	Estimated Time（minutes）	Actual Time（minutes）
Planning	30	20
• Estimate	30	20
Development	70	70
• Analysis	10	10
• Design Spec	15	15
• Design Review	5	5
• Coding Standard	5	5
• Design	15	15
• Coding	15	15
• Code Review	5	5
• Test	10	10
Reporting	20	20
• Test Repor	10	10
• Size Measurement	5	5
• Postmortem & Process Improvement Plan	5	5
Sum	120	120

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7.5 Team Member 5: Peng Houming

7.5.1 Difficulties encountered in cooperation and solutions

1. Communication problems: Team members may have communication problems in terms of requirements understanding, implementation details, etc.

   • Solution: Regular station meetings can help improve communication efficiency. The use of simple and clear tools, such as whiteboards and cards, can help to express ideas clearly. In addition, continuous integration can be used to ensure timely feedback on code changes.

2. Requirements Changes: Requirements may change as the project progresses, which can lead to uncertainty about the direction of the team.

   • Solution: XP encourages flexible responses to requirements. Discuss and adjust requirements in a timely manner during station meetings and iteration reviews. Maintain close contact with customers to get quick feedback and adapt to changes.

3. Insufficient Iteration Time: The time for each iteration may be underestimated, resulting in tasks not being completed on time.

   • Solution: Consider potential uncertainty in the iteration plan and allow some buffer time. Conduct a review at the end of the iteration to understand the actual completion status to better estimate the workload for the next iteration.

4. Inadequate Test Coverage: Due to time pressure, tests may be neglected, leading to a drop in code quality.

   • Solution: Implement test-driven development (TDD) to ensure that tests are written before code is written. Automated testing improves testing efficiency and reduces the workload of manual testing.

7.5.2 PSP form

Personal Software Process Stages	Estimated Time（minutes）	Actual Time（minutes）
Planning	20	25
• Estimate	20	25
Development	135	140
• Analysis	20	25
• Design Spec	10	10
• Design Review	15	15
• Coding Standard	15	15
• Design	20	20
• Coding	35	35
• Code Review	10	10
• Test	10	10
Reporting	15	15
• Test Repor	5	5
• Size Measurement	5	5
• Postmortem & Process Improvement Plan	5	5
Sum	170	180

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7.6 Team Member 6: Liu Yiqi

7.6.1 Difficulties encountered in cooperation and solutions

This assignment is to add an interest rate calculator to our second calculator assignment. The more difficult part is the interaction code between the front-end and the database. Since I have never learned the database before, I referred to some materials and codes on the b website and roughly understood the mode and code of interaction between the preceding paragraph and the database.

7.6.2 PSP form

Personal Software Process Stages	Estimated Time（minutes）	Actual Time（minutes）
Planning
• Estimate	10	10
Development
• Analysis	15	15
• Design Spec	5	5
• Design Review	10	10
• Coding Standard	10	10
• Design	20	20
• Coding	240	300
• Code Review	30	30
• Test	10	10
Reporting
• Test Repor	15	15
• Size Measurement	10	10
• Postmortem & Process Improvement Plan	5	5
Sum	380	440

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7.7 Team Member 7: Yin Xiangbin

7.7.1 Difficulties encountered in cooperation and solutions

This assignment is to add the function of calculating interest rate on the basis of separating the front and back end of the computer. We think the main difficulty of this programming is how to add this function to the calculator. We determined the implementation method through discussion, and at the same time learned and wrote the relevant code, and successfully completed the goal.

7.7.2 PSP form

Personal Software Process Stages	Estimated Time（minutes）	Actual Time（minutes）
Planning
• Estimate	10	10
Development
• Analysis	15	15
• Design Spec	5	5
• Design Review	10	10
• Coding Standard	10	10
• Design	20	20
• Coding	200	240
• Code Review	30	30
• Test	10	10
Reporting
• Test Repor	15	15
• Size Measurement	10	10
• Postmortem & Process Improvement Plan	5	5
Sum	340	380

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7.8 Team Member 8: Chen Zhenggang

7.8.1 Difficulties encountered in cooperation and solutions

Difficulties encountered: use of databases, writing of sql statements
Solution: Check the database study notes

7.8.2 PSP form

Personal Software Process Stages	Estimated Time（minutes）	Actual Time（minutes）
Planning	40	30
• Estimate	30	20
Development	20	10
• Analysis	10	20
• Design Spec	20	30
• Design Review	30	40
• Coding Standard	40	30
• Design	30	20
• Coding	20	10
• Code Review	10	20
• Test	20	30
Reporting	30	40
• Test Repor	40	30
• Size Measurement	30	40
• Postmortem & Process Improvement Plan	30	20
Sum	400	390

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7.9 Team Member 9: Zhang Jiayang

7.9.1 Difficulties encountered in cooperation and solutions

when I write user login and registration, I do not know how to jump to another page, and then I see the explanation of others in CSDN to know how to write, and when writing with other front-end writers, I need to wait for others' git upload to see the overall web page, and we can only quickly write their own pages.

7.9.2 PSP form

Personal Software Process Stages	Estimated Time（minutes）	Actual Time（minutes）
Planning	30	30
• Estimate	30	30
Development	245	255
• Analysis	30	40
• Design Spec	10	15
• Design Review	5	5
• Coding Standard	10	10
• Design	20	20
• Coding	120	120
• Code Review	30	30
• Test	20	15
Reporting	60	90
• Test Repor	10	10
• Size Measurement	10	10
• Postmortem & Process Improvement Plan	20	20
Sum	375	415

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7.10 Team Member 10: Chen Jinghua

7.10.1 Difficulties encountered in cooperation and solutions

During the cooperation process, some front-end parts failed to connect with the back-end. Solve the problem after many negotiations.

7.10.2 PSP form

Personal Software Process Stages	Estimated Time（minutes）	Actual Time（minutes）
Planning
• Estimate	60	65
Development
• Analysis	10	10
• Design Spec	20	10
• Design Review	20	15
• Coding Standard	40	40
• Design	60	80
• Coding	40	60
• Code Review	10	20
• Test	10	30
Reporting
• Test Repor	15	10
• Size Measurement	10	8
• Postmortem & Process Improvement Plan	10	10
Sum	305	368

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7.11 Team Member 11: Chen Yuheng

7.11.1 Difficulties encountered in cooperation and solutions

Problem: Web page maladaptation and browser caching issues make debugging difficult.

Solution: Problem solving through csdn and google searches.

7.11.2 PSP form

Personal Software Process Stages	Estimated Time（minutes）	Actual Time（minutes）
Planning
• Estimate	30	35
Development
• Analysis	10	10
• Design Spec	20	10
• Design Review	20	15
• Coding Standard	40	40
• Design	60	80
• Coding	40	60
• Code Review	10	20
• Test	10	30
Reporting
• Test Repor	15	10
• Size Measurement	10	8
• Postmortem & Process Improvement Plan	10	10
Sum	275	338

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