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Fundamentals of Computer Systems Assessment Criteria - Fundamentals of Computer...

Jul 22, 2024

To implement a simple program to manage a student database in C, you need to focus on several key concepts. Here is a structured approach to help you achieve the learning outcomes mentioned in the assessment criteria:

Steps to Implement a Student Database in C

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Instructions: Start by defining the problem and understanding the requirements. You need to manage student information, including names, ages, and grades. ⚹

▪ ⋮ I/O Operations: Use "scanf" and "printf" for input and output operations.

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Procedures: Write functions to modularize your code. For example, create functions to add, delete, and display student records. ⚹

▪ ⋮ Linking: Ensure that your program is properly linked by including necessary header files and using function prototypes.

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Branching and Loops: Use loops (`for`, `while`, `do-while`) to iterate through student records and branching statements to make decisions. ⚹ ∻Learning Outcomes∻

▪ ⋮ Solve use case and business problems with C programming: By implementing the student database, you will learn how to solve real-world problems using C.

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Create Control flow structures in C: Use control flow structures to manage the execution of your program. ⚹

▪ ⋮ Create C Program with use of Data Types, Logical operators, Loop structures, Modularization: Use appropriate data types, logical operators, and loop structures to build a modular program.

Familiarize with C Math library, and the use of Array: Use arrays to store student records and the C Math library for any mathematical operations.

Here is a simple example to get you started:

""""

c #include <stdio.h> #include <string.h> #define MAX_STUDENTS 100 typedef struct { char name[50]; int age; float grade; } Student; Student students[MAX_STUDENTS]; int studentCount = 0; void addStudent() { if (studentCount < MAX_STUDENTS) { printf("Enter name: "); scanf("%s", students[studentCount].name); printf("Enter age: "); scanf("%d", &students[studentCount].age); printf("Enter grade: "); scanf("%f", &students[studentCount].grade); studentCount++; } else { printf("Student database is full.\n"); } } void displayStudents() { for (int i = 0; i < studentCount; i++) { printf("Name: %s, Age: %d, Grade: %.2f\n", students[i].name, students[i].age, students[i].grade); } } int main() { int choice; while (1) { printf("1. Add Student\n2. Display Students\n3. Exit\n"); printf("Enter your choice: "); scanf("%d", &choice); switch (choice) { case 1: addStudent(); break; case 2: displayStudents(); break; case 3: return 0; default: printf("Invalid choice. Please try again.\n"); } } return 0; } ""`

This example covers basic I/O operations, flow control, and modularization. You can expand it further by adding more functionalities and error handling.

Step-by-step Instruction

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Design data structures: Use structs to represent students and the database

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Handle input/output: Use standard I/O functions for user interaction and report generation

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Implement flow control structures: Use if-else statements and loops to control program execution

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Implement error handling: Manage potential errors such as invalid input

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Evaluate code quality: Ensure correctness, clarity, readability, efficiency, and exception handling

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Prepare a presentation/report: Document design choices, algorithm efficiency, testing procedures, and additional features

Explanation

Let's start by defining the data structures and main functions required for the student database management system.

Explanation

The above code defines the data structures and main functions required for the student database management system.

Explanation

The main function tests the add, update, display, and average grade functions with two use cases.

Time Complexity

The time complexity for adding, updating, and displaying students is

O(n)

, where

n

is the number of students.

Space Complexity

The space complexity is

O(n)

for storing the student data in the database.

a) Design and Utilization of Data Structures (10 marks):  Utilize appropriate data structures (structs) to represent students and the database. b) Functions and Subroutines (20 marks):  Implement functions/subroutines for adding a new student (i.e. student name, student id, class, etc.)  Implement functions/subroutines for updating of an existing student detail.  Implement functions/subroutines for displaying all students in the student’s system.  Implement functions/subroutines for calculating and displaying the average grade. c) Input/Output Handling (20 marks):  Generate a report with a standard description relating to the students’ system (i.e. may include the above points or new ideas).  Generate a report showing (i.e. for a teacher to view) depicting students with borderline grades (i.e. Fail).  Use I/O instructions to handle user input and output.  Utilize standard input/output functions for user interaction. d) Flow Control Structures (10 marks):  Utilize appropriate flow control structures (if-else statements, loops) to control program execution. e) Error Handling (10 marks):  Implement exception handling to manage potential errors, such as invalid input.  Implement error handling to manage potential issues, such as invalid input. f) Overall Code Quality (20 marks):  Evaluate the overall code in terms of correctness, clarity, readability, efficiency, and exception handling.  Evaluation may also consider algorithm development, pseudocode, modularity of the implementation focusing on principle and function’s clarity, single responsibility, independence, encapsulation, and potential reusability in various implementation context. Fundamentals of Computer Systems Page 3 of 4 g) Presentation, Report, and Referencing (10 marks):  Prepare a presentation or report documenting design choices, algorithm efficiency, testing procedures, and any additional features.  Proper reference sources used.(i need all this include in my c programming)

To implement a program to manage a student database using C programming, you need to address several key aspects. Below is a detailed breakdown of each requirement and how to approach it:

Design and Utilization of Data Structures (10 marks)

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Utilize appropriate data structures (structs) to represent students and the database: Define a `struct` to represent a student with fields such as `name`, `student_id`, `class`, and `grades`. Create another `struct` to represent the database, which can be an array of student structs

Example:

Functions and Subroutines (20 marks)

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Implement functions/subroutines for adding a new student: Create a function to add a new student to the database

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Implement functions/subroutines for updating an existing student detail: Create a function to update student details

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Implement functions/subroutines for displaying all students in the system: Create a function to display all students

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Implement functions/subroutines for calculating and displaying the average grade: Create a function to calculate and display the average grade of students

Example:

Input/Output Handling (20 marks)

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Generate a report with a standard description relating to the students’ system: Create a function to generate a report

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Generate a report showing students with borderline grades: Create a function to generate a report for students with failing grades

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Use I/O instructions to handle user input and output: Use `scanf` and `printf` for user interaction

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Utilize standard input/output functions for user interaction: Ensure proper use of standard I/O functions

Example:

Flow Control Structures (10 marks)

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Utilize appropriate flow control structures (if-else statements, loops) to control program execution: Use `if-else` statements and loops to manage program flow

Example:

Error Handling (10 marks)

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Implement exception handling to manage potential errors, such as invalid input: Use error checking for user inputs

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Implement error handling to manage potential issues, such as invalid input: Ensure robust error handling

Example:

Overall Code Quality (20 marks)

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Evaluate the overall code in terms of correctness, clarity, readability, efficiency, and exception handling: Ensure the code is correct, clear, readable, efficient, and handles exceptions well

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Evaluation may also consider algorithm development, pseudocode, modularity of the implementation focusing on principle and function’s clarity, single responsibility, independence, encapsulation, and potential reusability in various implementation contexts: Follow best practices in software development

Presentation, Report, and Referencing (10 marks)

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Prepare a presentation or report documenting design choices, algorithm efficiency, testing procedures, and any additional features: Create a detailed report or presentation

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Proper reference sources used: Cite all sources properly

This comprehensive approach will help you cover all the required aspects of your C programming assignment.