---
title: What is Software testing?
description: "*What is Software testing?* According to ISTQB (International Software Testing Qualifications Board), software testing is defined as: **\"The process of evaluating a software product to determine whether it meets specified requirements and identifying defects in order to ensure that it…"
url: "https://vinothqaacademy.com/docs/what-is-software-testing/"
updated: "2025-01-29"
category: QA Software Testing
tags:
  - QA Software Testing
---

# What is Software testing?

*What is Software testing?*

According to ISTQB (International Software Testing Qualifications Board), software testing is defined as:

**"The process of evaluating a software product to determine whether it meets specified requirements and identifying defects in order to ensure that it is fit for use."**

***Key elements of this definition include:***

1. **Verification and Validation**: Ensuring the product conforms to its requirements and serves its intended purpose.
2. **Detection of Defects**: Identifying and addressing issues in the software.
3. **Quality Assurance**: Evaluating the product to ensure its quality, reliability, and usability.

This formal approach helps organizations minimize risks, enhance user satisfaction, and deliver high-quality software products.

**Different Types of Software Testing**

1. Manual Testing
2. Automation Testing

**Manual Testing**

- **Definition**: Test cases are executed manually by a human without using any automation tools.
- **Purpose**: Identify defects or bugs by interacting with the application as an end user would.
- **Process**:
  - Understand requirements and create test cases.
  - Execute test cases manually step by step.
  - Record results and report defects.
- **Tools**: Usually requires minimal tools; test management tools like JIRA, TestRail, or Excel are often used.
- **Examples**:
  - Checking the login functionality of a website manually by entering valid and invalid credentials.
  - Verifying UI elements like buttons, colors, and layout.

**Advantages**:

- Simple and cost-effective for small projects.
- Effective for exploratory, usability, and ad-hoc testing.

**Disadvantages**:

- Time-consuming and repetitive for large-scale projects.
- Prone to human error.

**Automation Testing**

- **Definition**: Test cases are executed using automation tools or scripts without human intervention (once scripts are set up).
- **Purpose**: Improve efficiency, accuracy, and coverage by automating repetitive and complex test scenarios.
- **Process**:
  - Select test cases for automation.
  - Write scripts using tools like Selenium, TestNG, or Cypress.
  - Execute scripts and analyze the results.
- **Tools**: Selenium, Appium, TestComplete, Cypress, Postman, etc.
- **Examples**:
  - Automatically testing login functionality with multiple sets of credentials.
  - Running performance tests to simulate thousands of concurrent users.

**Advantages**:

- Faster execution of repetitive test cases.
- Scalable and reusable scripts.
- Useful for performance, load, regression, and smoke testing.

**Disadvantages**:

- High initial setup cost and complexity.
- Not ideal for UI, exploratory, or ad-hoc testing.

### **Key Differences Between Manual and Automation Testing**

| **Aspect** | **Manual Testing** | **Automation Testing** |
| --- | --- | --- |
| **Execution** | Performed manually by testers. | Performed using automation tools/scripts. |
| **Speed** | Slower due to human effort. | Faster due to automation. |
| **Cost** | Low initial cost, high recurring cost (manual effort). | High initial setup cost, low recurring cost. |
| **Accuracy** | Prone to human error. | Highly accurate if scripts are correct. |
| **Scope** | Limited for large-scale or repetitive tasks. | Ideal for repetitive, large-scale, and performance testing. |
| **Suitability** | Usability, exploratory, and UI testing. | Regression, load, and performance testing. |

Both manual and automation testing have their unique importance and are often combined in a QA strategy for comprehensive software testing.