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Software Testing Overview

• Posted by Kiran Verma February 13, 2023 Filed in Technology #software testing  #Software testing course in Pune  #Software testing classes in Pune  17 views
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  Software Testing Overview

  Software Testing is an integral part in every aspect of our daily lives. Software Testing can also be used to create consumer products such as smartphones and televisions.

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  Software issues can lead to reputational, financial, and time losses.

   

  There were some cases of patient deaths caused by software problems in Therac-25's radiation treatment code

  In less than one minute, the European Space Agency's prototype Ariane 5 rocket, which cost US$1billion, was destroyed. The problem was with the onboard guidance system.

  Honda Company owned 2.49 million cars, small SUVs, and minivans in the world. They were all recalled in 2011 because of a software problem.

  These issues can negatively impact a company's reputation, and lead to high-priced substitutes.

   

  A paramedic from the Fire Department put a woman on oxygen after an accident and checked that her oxygen system was functioning normally.

   

  Paramedics discovered the oxygen system had been off for eight minutes. However, the woman was already deceased.

   

  The fire department immediately replaced all electrical equipment. The same problem was encountered with new equipment just a few more weeks later.

   

  An independent investigation found that the ambulance oxygen system was having a problem with its software. Let's take a look at the various software flaws.

   

  Software Problems in Different Categories

  Software issues can have severe consequences for individuals and societies.

   

  Individual Impact

  Monthly bills can be affected by errors. Errors in salary calculations are common.

   

  Other examples include inaccuracies with ATM withdrawal amounts, delays in telephone booths and waiting times at petrol filling stations and traffic lights.

   

  Individual flaws are more harmful than those that affect an entire company. Now let's look at the issues that impact society.

   

  Society's Impact

  Train accidents can cause injuries and death. Software bugs in automated railway systems can also pose a threat to public safety.

   

  This section will discuss the causes of software bugs.

   

  Software Issues: What Causes?

  Software developers can make mistakes in manufacturing that could lead to software errors

   

  Software can be susceptible to errors because they are manually designed. Requirements should be clearly written, documented and designed.

   

  An error in porting an application to production could also cause problems.

   

  A problem is not always a problem and software can sometimes be hidden until they are discovered.

   

  These will be discussed in the following sections.

   

  Software Problems: Causes and Solutions

  We'll take a look at the most common software errors.

   

  Defining requirements is the first step in software development.

   

  There are many requirements that can be confusing and cause confusion.

   

  Those who don't have the necessary skills to read requirements documents may struggle to understand their meaning.

   

  Sometimes developers don't have enough hours to code and test. Defects can be introduced during testing.

   

  Common problems include code and complex architecture.

   

  In the next section, we will discuss the consequences software flaws can have on our lives.

   

  Software Deficiencies - What Are The Consequences

  An error that doesn't cause a problem is not considered a failure.

   

  When all directions see the red light at 0:15 in morning, it is obvious that something is wrong with the software controlling traffic signals at busy crossroads.

   

  An alarm that sounds every day at 12:15 P.M. between noon and midnight could be a sign of serious problems.

   

  Let's move on.

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  Software Testing Overview

  The following section gives an overview of software testing and describes the roles, goals, and principles involved in software development.

   

  Find out more: How to get software testing jobs

   

  Let's start by explaining what a software test means.

   

  Software Testing Definition

  While testing isn't a standard, these are the most common:

   

  Glenford J Myers is an American computer scientist and author who defines testing as "the act or part of executing programs with the intent of finding mistakes.

   

  According to the Institute of Electrical and Electronic Engineers (IEEE 83a), testing is "the evaluation of system and component using manual and automated methods to confirm that it conforms with specified requirements.

   

  There are many ways to define testing. This is the study and evaluation of a system to find the differences between existing and required conditions.

   

  Software testing is, in its most basic form, "verifying that software behaves as it should." " " "

   

  Now let's look at why software testing is so important.

   

  Software Testing must

  The National Institute of Standards and Technology (NIST) found that software bugs cost the United States $59.5 million annually in 2002.

   

  Software testing can be improved up to one-third. Software mistakes can have fatal and devastating consequences.

   

  The person responsible for product development shouldn't be the one reviewing products.

   

  Understanding the consequences and severity is critical.

   

  Software Testing can make mistakes.

   

  Software testing is now a necessity. Here are some terms that are commonly used in software testing.

   

  Common Testing Terms

  You can use these terms for testing:

   

  Debugging

  Development is incomplete without debugging. This involves diagnosing and analysing problems and then fixing them in code.

   

  Test

  Testing is done by testers.

   

  Production can be used for testing. Sometimes Debugging can be interchangeable with Testing.

   

  These can all be used by different groups to identify different types of defects

   

  Review

  You are able to read, code, and test plans.

   

  Product reviews can be called static testing, as they do not run any code. Early detection of defects can help reduce development costs.

   

  Now let's discuss the benefits and importance of software testing in section 2.

   

  Software Testing - What's its role?

  Software maintenance and development are crucial.

   

  Identify defects

  Reducing operational environment failures

  Provide a better operational system.

  Be respectful of legal, contractual, and other requirements

  Specific industry standards may be needed to define the types and techniques that should be used.

  This section will focus on the goals and methods for software testing.

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  Software Testing Objectives

  These are software testing goals.

   

  Defects in production

  It's important to be confident in the quality of software applications.

  This information can be used to decide GO/NOT GO and move on to the next phase.

  Defect analysis can be used to determine the root cause and prevent future problems.

  The following section will describe the goals of different types of testing.

   

  Different types of testing have different goals

  Every type of testing has its own objectives.

   

  Development Testing

  Development testing also includes component or unit testing. This helps to find and fix as many defects as possible early in the development process.

   

  Acceptance Testing

  User acceptance testing is done to verify that the system functions as intended.

   

  Maintenance Testing

  Maintenance Testing can be used to ensure that there are no new defects, especially in cases where improvements or fixes have been made.

   

  Operational testing

  Operational testing is used to confirm reliability and performance.