Software Quality Metrics and Testing Strategies
Benchmarking and Software Metrics
Benchmarking is the process of comparing software performance or quality against industry standards to identify improvement areas. Metrics are measurable values used to assess the quality, performance, or progress of software development and testing activities.
- Purpose of Benchmarking: It helps organizations understand their position relative to competitors and adopt better practices for improvement.
- Purpose of Metrics: Metrics provide quantitative data that supports
Agile Principles and Lean Software Development Practices
12 Agile Principles
1. Planning Game
Customer + team decide scope → ensures relevant features
2. Small Releases
Frequent delivery → early feedback → fewer defects
3. System Metaphor
Simple shared vision → better understanding
4. Simple Design
Avoid overengineering → fewer bugs
5. Testing (TDD)
Write tests first → high reliability
6. Refactoring
Improve code continuously → maintainability
7. Pair Programming
Two developers → fewer errors, better quality
8. Collective Ownership
Anyone can improve
Read MoreUML Modeling Techniques for POS and ATM Systems
Conceptual and Domain Modeling
Question 1: What is a Conceptual Model/Domain Model? Explain the step-by-step process to build it with a complete example from a POS system.
Answer:
Conceptual/Domain Model
A Conceptual Model is a visual representation of the real-world problem domain showing the key concepts (classes), their attributes, and relationships without considering system implementation.
Steps to Build a Conceptual Model
- Identify Nouns and Verbs from Requirements: Extract potential classes and
Binary Tree Operations, Sorting Algorithms & CLL Pseudocode
Binary Tree Insert
1. ptr = ROOT; flag = FALSE
2. While (ptr != NULL) and (flag == FALSE) do
3. Case: ITEM < ptr->DATA
4. ptr1 = ptr
5. ptr = ptr->LCHILD
6. Case: ITEM > ptr->DATA
7. ptr1 = ptr
8. ptr = ptr->RCHILD
9. Case: ptr->DATA = ITEM
10. flag = TRUE
11. Print "ITEM already exists"
12. Exit
13. EndCase
14. EndWhile
15. If (ptr == NULL) then
16. new = GetNode(NODE)
17. new->DATA = ITEM
18. new->LCHILD = NULL
19. new->RCHILD C Programs: Tower of Hanoi and Singly Linked List
C Programs: Tower of Hanoi and Singly Linked List
Includes: Two C programs: a recursive Tower of Hanoi solver and a singly linked list implementation with stack demo. The original code has been preserved, formatted, and corrected for spelling, grammar, and readability.
Tower of Hanoi – C Program
#include <stdio.h>
void tower_hanoi(int n, char src, char dest, char temp) {
if (n == 1) {
printf("\nMove disk %d from peg %c to peg %c", n, src, dest);
return;
}
tower_hanoi(UML and System Modeling Techniques for Software Design
Chapter 5: System Modeling Fundamentals
System Modeling
- System modeling is the process of developing abstract models of a system, with each model presenting a different view or perspective of that system.
- System modeling has now come to mean representing a system using some kind of graphical notation, which is now almost always based on notations in the Unified Modeling Language (UML).
- System modeling helps the analyst to understand the functionality of the system, and models are used to communicate