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学生管理系统需求分析.doc
1.Introduction
2.Current system
3.Proposed System
3.1 Overview
3.2 Functional Requirements
3.2.1 manage student,teacher and course informatio
3.2.2 view student,teacher and course information
3.2.3 select courses
3.2.4 Check the courses selected
3.2.5 change the password
3.2.6 enter the grades
3.2.7 view the studentd’ score
3.3 Non-Functional Requirements
3.3.1 Correctness and completeness of data
3.3.2 Safety
3.3.3 Fast system response
3.3.4 User-Friendly Interface
3.3.5 Extendibility
4 System Model
4.1 Use Case Model
4.1.1 select a course
4.1.2 delete a course
4.1.3 View the course selection
4.1.4 Check personal score
4.1.5 Login
4.1.6 Manage student info
Manage student info
4.1.7 Manage teacher information
Manage teacher information
4.1.8 Manage course information
Manage course information
4.1.9 Check student information
Check the student information
4.1.10 Check teacher information
Check the teacher information
4.1.11 Check course information
Check the course information
4.1.12 Change password
Change password
4.1.13 Record students’ score
Record students’ score
4.1.14 Check class score
Check class score
4.1.15 Change student’s score
Change student’s score
4.1.16 Calculate the highest score, lowest score,
4.2. Object model
4.3. Dynamic models
4.3.1 Sequence Diagrams
4.3.1.1 Check personal score
4.3.1.2 View the course selection
4.3.1.3 Select a lesion
4.1.1.4 Login
4.1.1.5 Delete a course
4.1.1.6 Manage student info
4.1.1.7 Manage teacher information
4.1.1.8 Manage course information
4.1.1.9 Change Password
4.1.1.10 Record student's score
4.1.1.11 Check class scores
4.1.1.12 Change student's score
4.1.1.13 Calculate the highest score, lowest score
4.1.1.14 Check student information
4.1.1.15 Check teacher information
4.1.1.16 Check course information
4.3.2 State Transition Diagrams
4.3.3 Activity Diagrams
4.4.User interface
4.4.1 login interface
4.4.2 Student main interface
4.4.3 Course selection interface
4.4.4 View course selection interface
4.4.5 change password interface
4.4.6 teacher main interface
4.4.7 Enter the scores interface
4.4.8 View student’s scores interface
4.4.9 Administrator main interface
4.4.10 manage student information interface
4.4.11 manage teacher information interface
4.4.12 manage course information interface
4.4.13 view student information interface
4.4.14 view teacher information interface
4.1.15 view course information interface
Course selection management system
Analysis Report
Student name: 李春堂
Student ID: 20161344052
28/06/2018
Table of Contents
1.
2.
3.
Introduction...................................................................................................................................................1
Current system.............................................................................................................................................. 1
Proposed System...........................................................................................................................................1
3.1 Overview..................................................................................................................................................1
3.2 Functional Requirements...................................................................................................................1
3.2.1 manage student,teacher and course information...........................................................1
3.2.2 view student,teacher and course information................................................................. 1
3.2.3 select courses..............................................................................................................................2
3.2.4 Check the courses selected..................................................................................................... 2
3.2.5 change the password............................................................................................................... 2
3.2.6 enter the grades........................................................................................................................ 2
3.2.7 view the studentd’ score..........................................................................................................2
3.3 Non-Functional Requirements........................................................................................................2
3.3.1 Correctness and completeness of data................................................................................2
3.3.2 Safety ............................................................................................................................................3
3.3.3 Fast system response................................................................................................................3
3.3.4 User-Friendly Interface........................................................................................................... 3
3.3.5 Extendibility............................................................................................................................... 3
4 System Model.......................................................................................................................................................3
4.1 Use Case Model....................................................................................................................................3
4.1.1 select a course............................................................................................................................4
4.1.2 delete a course........................................................................................................................... 5
4.1.3 View the course selection........................................................................................................5
4.1.4 Check personal score................................................................................................................6
4.1.5 Login.............................................................................................................................................6
4.1.6 Manage student info................................................................................................................ 7
4.1.7 Manage teacher information................................................................................................ 9
4.1.8 Manage course information................................................................................................11
4.1.9 Check student information.................................................................................................. 13
4.1.10 Check teacher information................................................................................................14
4.1.11 Check course information..................................................................................................14
4.1.12 Change password.................................................................................................................15
4.1.13 Record students’ score........................................................................................................ 15
4.1.14 Check class score.................................................................................................................. 16
4.1.15 Change student’s score.......................................................................................................16
4.1.16 Calculate the highest score, lowest score, and average score for this class........17
4.2. Object model ......................................................................................................................................17
4.3. Dynamic models................................................................................................................................18
4.3.1 Sequence Diagrams............................................................................................................... 18
4.3.2 State Transition Diagrams.................................................................................................. 26
4.3.3 Activity Diagrams...................................................................................................................28
4.4.User interface.......................................................................................................................................29
4.4.1 login interface......................................................................................................................... 29
4.4.2 Student main interface......................................................................................................... 29
4.4.3 Course selection interface.................................................................................................... 30
4.4.4 View course selection interface..........................................................................................30
4.4.5 change password interface..................................................................................................31
4.4.6 teacher main interface..........................................................................................................31
4.4.7 Enter the scores interface.................................................................................................... 32
4.4.8 View student’s scores interface.......................................................................................... 32
4.4.9 Administrator main interface.............................................................................................33
4.4.10 manage student information interface.......................................................................34
4.4.11 manage teacher information interface......................................................................... 35
4.4.12 manage course information interface........................................................................... 36
4.4.13 view student information interface................................................................................36
4.4.14 view teacher information interface................................................................................37
4.1.15 view course information interface..................................................................................37
1. Introduction
The course selection management system is a system that manages student
selection. Each semester of the college offers a certain number of courses. Students
choose courses according to their own conditions.
to facilitate the
management of course selection information, I intend to design and complete the
software system.
In order
2. Current system
Many current elective course management systems can achieve the basic functions
of student elective courses, but they are not very good at managing students, teachers
and course information.
3. Proposed System
3.1 Overview
The system is divided into three modules: administrator module, teacher module,
and student module. Administrators, teachers, and students have different operating
rights. Administrators can manage students, teachers and course information. Teachers
can enter students' scores and manage students' scores. Students can choose courses
and view scores. Both teachers and students can change the password.
3.2 Functional Requirements
3.2.1 manage student,teacher and course information
The system has the functions of managing student information, teacher information,
and course information. These are the functions that administrators can use.
Administrators can add, delete, change, check students,
teachers, and course
information.
3.2.2 view student,teacher and course information
The system has the function of viewing student information, teacher information
and course information. Administrators can use these functions not only to view
information, but also to print this information easily.
3.2.3 select courses
The system has the function of selecting courses. Students can enter course number
to select courses. If the student chooses wrong course, he can deletes the course by
entering the course number.
3.2.4 Check the courses selected
The system has the function of checking the courses selected. If the teacher has
already entered grades, students can also use this function to check their grades.
3.2.5 change the password
The system has the function to change the password. To change the password,
students and teachers need to enter the old password first. If the old password is
correct, they can change the password. Otherwise, they cannot change the password.
3.2.6 enter the grades
The system has the function of entering the grades. The teacher can enter the
student's grade by entering the student number, class number and grade in the text
box.
3.2.7 view the studentd’ score
The system has the function of viewing the students’ score.The teacher can use this
function to view the scores of students who have taken this course. The teacher can
get student's average score, highest score and lowest score by clicking on the
appropriate button.
3.3 Non-Functional Requirements
3.3.1 Correctness and completeness of data
The system can guarantee data integrity and accuracy. The data is stored in the table
of the sql database, restricting the type of data entered and the range of values to
ensure the integrity and accuracy of the data.
3.3.2 Safety
The system is safe. All users must log in with their username and login password.
Different roles enter the user name, and passwords have different operation rights. If
the user enters some non-standard data during use, the system will check it out and
display relevant information.
3.3.3 Fast system response
For each operation of the user, the system can respond within 0.01 seconds. The
response time of the system will affect the user's experience, so the system will
optimize the response time as much as possible.
3.3.4 User-Friendly Interface
The interface of the system is beautiful. The system is easy to learn use. The system
has strong operability and promotes human-computer interaction. The background
image of the system is simple and elegant, giving people a comfortable feeling.
3.3.5 Extendibility
In software engineering, reusability and extensibility are two concepts. We plan to
make the elective management system suitable for future work expansion and reuse.
4 System Model
4.1 Use Case Model
This section provides information on the main use case model of the course
selection management system. The following contains detailed use case descriptions.
Figure 4.1 - Illustrating the Course selection management system
Use Case Model
4.1.1 select a course
Use Case Name
Actors
Pre-conditions
Post-condition:
Entry Condition:
Exit Condition:
Flow of Events
select course
student
Student has account and login is successful.
The course is added successfully.
Student click the button named ’select course’.
Student selects “Back” to return Main Menu.
Actor Steps
1) Student inputs the student
number and course number,
then click the button named
‘select course ‘.
System Steps
2) The system checks for
duplicatecourses.
3) If there are no duplicate
system
selected
courses,
successfully
courses.
the
adds
If
the
system detects
4)
duplicate courses, the system
reminds
that
this
course has been selected
student
Exceptions
Step 1) If the student inputs the wrong course number, the
system will prompt the info "The course number is not correct,
please retry"
4.1.2 delete a course
Use Case Name
Actors
Pre-conditions
Post-condition:
Entry Condition:
Exit Condition:
Flow of Events
delete course
student
Student has account and login is successful.
The course is deleted successfully.
Student click the button named ’delete course’.
Student selects “Back” to return Main Menu.
Actor Steps
1) Student inputs the student
number and course number,
then click the button named
‘delete course ‘
System Steps
2) The system checks whether
the course information exists
3)If
the course information
exists, the system deletes the
course information.
the
4) If the course information
doesn’t
system
reminds
the
elective information does not
exist.
exist,
student
that
Exceptions
Step 1) If the student inputs the wrong course number, the
system will prompt the info "The course number is not correct,
please retry"
4.1.3 View the course selection
Use Case Name
Actors
Pre-conditions
View the course selection
student
Student has account and the login is successful.
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