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This is chapter 4 of ISTQB Specialist Performance Tester certification. This presentation helps aspirants understand and prepare the content of the certification.
This is chapter 5 of ISTQB Specialist Performance Tester certification. This presentation helps aspirants understand and prepare the content of the certification.
This is chapter 2 of ISTQB Specialist Performance Tester certification. This presentation helps aspirants understand and prepare the content of the certification.
This is chapter 1 of ISTQB Specialist Performance Tester certification. This presentation helps aspirants understand and prepare the content of the certification.
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Chapter 3 of ISTQB Foundation 2018 syllabus with sample questions. Answers about what is static testing, what is review, types of review, informal review, walkthrough, technical review, inspection.
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This is chapter 5 of ISTQB Specialist Performance Tester certification. This presentation helps aspirants understand and prepare the content of the certification.
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The document discusses fundamentals of software testing including definitions of testing, why testing is necessary, seven testing principles, and the test process. It describes the test process as consisting of test planning, monitoring and control, analysis, design, implementation, execution, and completion. It also outlines the typical work products created during each phase of the test process.
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The document discusses testing throughout the software development life cycle. It describes different software development models including sequential, incremental, and iterative models. It also covers different test levels from component and integration testing to system and acceptance testing. The document discusses different types of testing including functional and non-functional testing. It also covers topics like maintenance testing and triggers for additional testing when changes are made.
Test Management as Chapter 5 of ISTQB Foundation 2018. Topics covered are Test Organization, Test Planning and Estimation, Test Monitoring and Control, Test Execution Schedule, Test Strategy, Risk and Testing, Defect Management
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How To Write A Test Case In Software Testing | EdurekaEdureka!
YouTube Link: https://youtu.be/KxelISpFqOY
(** Test Automation Masters Program: https://www.edureka.co/masters-progra... **)
This Edureka PPT on "Test Case in Software Testing" will give you in-depth knowledge on how to write a Test Case in Software Testing. The following are the topics covered in the session:
Software Testing Documentation
Test Case in Software Testing
Test Case Format
Test Case Design Technique
Test Case Guidelines
Demo: How to write a test case?
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The document discusses various types of non-functional testing including performance, reliability, maintainability, availability, recovery, usability, configuration, and security testing. It provides definitions and examples of how to test each type of non-functional requirement. Performance testing aims to evaluate how well a system performs under different loads, and involves measuring response times, throughput, and resource utilization. Non-functional requirements are as important as functional requirements in building quality software.
Enterprise software needs to be faster than the competition.
In this presentation we will explore what is performance testing, why it is important and when should you implement these tests.
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Testing software is conducted to ensure the system meets user needs and requirements. The primary objectives of testing are to verify that the right system was built according to specifications and that it was built correctly. Testing helps instill user confidence, ensures functionality and performance, and identifies any issues where the system does not meet specifications. Different types of testing include unit, integration, system, and user acceptance testing, which are done at various stages of the software development life cycle.
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This model classifies 11 software quality factors into three categories: product operation factors like correctness and reliability, product revision factors like maintainability and testability, and product transition factors like portability and reusability. These factors determine requirements for the software system's output, failure rate, efficiency, security, usability, and adaptability.
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Test Management as Chapter 5 of ISTQB Foundation 2018. Topics covered are Test Organization, Test Planning and Estimation, Test Monitoring and Control, Test Execution Schedule, Test Strategy, Risk and Testing, Defect Management
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This is the chapter 3 of ISTQB Agile Tester Extension certification. This presentation helps aspirants understand and prepare content of certification.
This is chapter 5 of ISTQB Advance Technical Test Analyst certification. This presentation helps aspirants understand and prepare the content of the certification.
This is chapter 6 of ISTQB Advance Technical Test Analyst certification. This presentation helps aspirants understand and prepare the content of the certification.
Effective Software Test Case Design Approach highlights typical wrong approaches to software test case design and focuses on an effective methodology in test case design from a collaborative approach.
Through the use of an example requirement/user story, this presentation highlights the "interactions" between the stakeholders, i.e. Product Owner, Developer, and Test Engineer in the development of user story acceptance criteria, details, test scope, and effective, consistent and valid test cases.
How To Write A Test Case In Software Testing | EdurekaEdureka!
YouTube Link: https://youtu.be/KxelISpFqOY
(** Test Automation Masters Program: https://www.edureka.co/masters-progra... **)
This Edureka PPT on "Test Case in Software Testing" will give you in-depth knowledge on how to write a Test Case in Software Testing. The following are the topics covered in the session:
Software Testing Documentation
Test Case in Software Testing
Test Case Format
Test Case Design Technique
Test Case Guidelines
Demo: How to write a test case?
Selenium playlist: https://goo.gl/NmuzXE
Selenium Blog playlist: http://bit.ly/2B7C3QR
Software Testing Blog playlist: http://bit.ly/2UXwdJm
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
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Facebook: https://www.facebook.com/edurekaIN/
Twitter: https://twitter.com/edurekain
LinkedIn: https://www.linkedin.com/company/edureka
The document discusses various types of non-functional testing including performance, reliability, maintainability, availability, recovery, usability, configuration, and security testing. It provides definitions and examples of how to test each type of non-functional requirement. Performance testing aims to evaluate how well a system performs under different loads, and involves measuring response times, throughput, and resource utilization. Non-functional requirements are as important as functional requirements in building quality software.
Enterprise software needs to be faster than the competition.
In this presentation we will explore what is performance testing, why it is important and when should you implement these tests.
This is the chapter 8 of ISTQB Advance Test Automation Engineer certification. This presentation helps aspirants understand and prepare content of certification.
Testing software is conducted to ensure the system meets user needs and requirements. The primary objectives of testing are to verify that the right system was built according to specifications and that it was built correctly. Testing helps instill user confidence, ensures functionality and performance, and identifies any issues where the system does not meet specifications. Different types of testing include unit, integration, system, and user acceptance testing, which are done at various stages of the software development life cycle.
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This is the slide deck that KMS Technology's experts shared useful information about latest and greatest achievements of software testing field with lecturers of HCMC University of Industry.
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This is chapter 4 of ISTQB Specialist Mobile Application Tester certification. This presentation helps aspirants understand and prepare the content of the certification.
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This model classifies 11 software quality factors into three categories: product operation factors like correctness and reliability, product revision factors like maintainability and testability, and product transition factors like portability and reusability. These factors determine requirements for the software system's output, failure rate, efficiency, security, usability, and adaptability.
System testing evaluates a complete integrated system to determine if it meets specified requirements. It tests both functional and non-functional requirements. Functional requirements include business rules, transactions, authentication, and external interfaces. Non-functional requirements include performance, reliability, security, and usability. There are different types of system testing, including black box testing which tests functionality without knowledge of internal structure, white box testing which tests internal structures, and gray box testing which is a combination. Input, installation, graphical user interface, and regression testing are examples of different types of system testing.
The document discusses different types of testing in the V-model, including static testing, dynamic testing, unit testing, integration testing, system testing, acceptance testing, and more. It provides details on each type of testing including what is tested, when it is performed, and the objectives.
This document discusses performance engineering and global software development. It describes Infosys' approach which combines performance engineering practices with client delivery experience. This includes workload and performance modeling, benchmarking, tuning, and optimization methodologies to deliver high-performance systems with reduced costs and timelines. The key aspects of the approach are system requirements, modeling, performance testing and benchmarking, and optimization and tuning.
The document outlines best practices and tips for application performance testing. It discusses defining test plans that include load testing, stress testing, and other types of performance testing. Key best practices include testing early and often using an iterative approach, taking a DevOps approach where development and operations work as a team, considering the user experience, understanding different types of performance tests, building a complete performance model, and including performance testing in unit tests. The document also provides tips to avoid such as not allowing enough time and using a QA system that differs from production.
Software Engineering Important Short Question for ExamsMuhammadTalha436
The document discusses various topics related to software engineering including:
1. The software development life cycle (SDLC) and its phases like requirements, design, implementation, testing, etc.
2. The waterfall model and its phases from modeling to maintenance.
3. The purpose of feasibility studies, data flow diagrams, and entity relationship diagrams.
4. Different types of testing done during the testing phase like unit, integration, system, black box and white box testing.
This document discusses performance testing, which determines how a system responds under different workloads. It defines key terms like response time and throughput. The performance testing process is outlined as identifying the test environment and criteria, planning tests, implementing the test design, executing tests, and analyzing results. Common metrics that are monitored include response time, throughput, CPU utilization, memory usage, network usage, and disk usage. Performance testing helps evaluate systems, identify bottlenecks, and ensure performance meets criteria before production.
Miss Aster Noor introduces the concepts of software processes and process models. The chapter covers software process models like waterfall, incremental development, and integration/configuration. It discusses the core process activities of requirements engineering, development, testing, and evolution. The chapter aims to explain why processes must adapt to changes and how process improvement affects quality.
Software Architecture and Design IntroductionUsman Khan
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This document discusses various performance testing methodologies. It begins by introducing performance testing as a subset of performance engineering aimed at building performance into a system's design. The document then describes different types of performance testing including load testing, stress testing, endurance/soak testing, spike testing, and configuration testing. It emphasizes that performance testing validates attributes like scalability and resource usage under various loads.
McCall's factor model classifies all software quality requirements into 11 factors within 3 categories: product operation, product revision, and product transition. Product operation factors include correctness, reliability, efficiency, integrity, and usability. Product revision factors are maintainability, flexibility, and testability. Product transition factors are portability, reusability, and interoperability.
This document provides information on testing a database. It discusses installing MySQL, what database testing involves, the differences between user interface testing and data testing, types of database testing including structural, functional and nonfunctional testing. Structural testing involves testing tables, schemas, triggers, stored procedures and views. Functional testing checks database functionality from a user perspective. Nonfunctional testing focuses on load, stress and performance.
COURSE IS NOW FULLY AVAILABLE AND LIVE HERE: https://goo.gl/gVukvc
What you will learn in this second section
Software Testing Methodologies. Waterfall, V-Model and Iterative
What is unity or component system testing
What is integration, system and acceptance means
Differences between functional and non-functional testing
What is a structural testing
Change-related testing
Maintenance testing
Access my blog for much more material and the mock exams.
www.rogeriodasilva.com
Understanding the importance of software performance testing and its typesTestingXperts
A performance testing solution must have certain key features that will ensure your success, such as real-time analytics, a good “kill switch”, etc., but just as important is a good process for testing in production
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The document introduces performance testing basics and methodology using Oracle Application Testing Suite. It covers types of performance testing like load testing, stress testing, and volume testing. It emphasizes the importance of setting up realistic user scenarios and test scripts. The testing environment should replicate production and use dedicated agent machines to generate load. Performance testing helps identify bottlenecks and determine scalability.
Materi Testing dan Implementasi Sistem - Testing throughout the software life...devinta sari
Component testing verifies individual software components and modules in isolation from the rest of the system using stubs and drivers. Integration testing tests interfaces between components and interactions between systems. System testing evaluates the entire system against requirements and from the perspective of end users. Acceptance testing is conducted by customers or users to determine if the system is fit for purpose prior to deployment.
As technology develops, software programs become more complex and more fragile. In addition to high functionality and seamless user interaction, aesthetics and presentation are increasingly significant in apps. Database testing is now crucial for assessing an application's databases effectively. Here are all the things you need to know about database testing.
The software process involves specification, design and implementation, validation, and evolution activities. It can be modeled using plan-driven approaches like the waterfall model or agile approaches. The waterfall model involves separate sequential phases while incremental development interleaves activities. Reuse-oriented processes focus on assembling systems from existing components. Real processes combine elements of different models. Specification defines system requirements through requirements engineering. Design translates requirements into a software structure and implementation creates an executable program. Validation verifies the system meets requirements through testing. Evolution maintains and changes the system in response to changing needs.
The document provides details about an individual with over 4 years of experience in software testing including manual testing, automation testing, and SQL. They have experience in various domains like insurance, finance, and healthcare. They are proficient in testing tools like Selenium, QTP, JMeter, and Bug tracking tools. They have experience designing and executing test cases as well as developing automated test scripts. They have worked on several projects as a module lead and senior software engineer testing web and desktop applications.
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2. Performance Testing in the Software Lifecycle
Contents
3.1 Principal Performance Testing Activities
3.2 Performance Risks for Different Architectures
3.3 Performance Risks Across the Software
Development Lifecycle
3.4 Performance Testing Activities
Neeraj Kumar Singh
3. Performance Testing in the Software Lifecycle
Principal Performance Testing Activities
Performance testing is iterative in nature. Each test provides valuable insights into application and system
performance. The information gathered from one test is used to correct or optimize application and system
parameters. The next test iteration will then show the results of modifications, and so on until test objectives are
reached.
Test Planning
Test planning is particularly important for performance testing due to the need for the allocation of test
environments, test data, tools and human resources. In addition, this is the activity in which the scope of
performance testing is established.
During test planning, risk identification and risk analysis activities are completed and relevant information is
updated in any test planning documentation (e.g., test plan, level test plan). Just as test planning is revisited and
modified as needed, so are risks, risk levels and risk status modified to reflect changes in risk conditions.
Neeraj Kumar Singh
4. Performance Testing in the Software Lifecycle
Principal Performance Testing Activities
Test Monitoring and Control
Control measures are defined to provide action plans should issues be encountered which might impact
performance efficiency, such as
increasing the load generation capacity if the infrastructure does not generate the desired loads as planned for
particular performance tests
changed, new or replaced hardware
changes to network components
changes to software implementation The performance test objectives are evaluated to check for exit criteria
achievement.
Neeraj Kumar Singh
5. Performance Testing in the Software Lifecycle
Principal Performance Testing Activities
Test Analysis
Effective performance tests are based on an analysis of performance requirements, test objectives, Service Level
Agreements (SLA), IT architecture, process models and other items that comprise the test basis. This activity may
be supported by modeling and analysis of system resource requirements and/or behavior using spreadsheets or
capacity planning tools.
Specific test conditions are identified such as load levels, timing conditions, and transactions to be tested. The
required type(s) of performance test (e.g., load, stress, scalability) are then decided.
Test Design
Performance test cases are designed. These are generally created in modular form so that they may be used as the
building blocks of larger, more complex performance tests (see section 4.2).
Neeraj Kumar Singh
6. Performance Testing in the Software Lifecycle
Principal Performance Testing Activities
Test Implementation
In the implementation phase, performance test cases are ordered into performance test procedures. These
performance test procedures should reflect the steps normally taken by the user and other functional activities
that are to be covered during performance testing.
A test implementation activity is establishing and/or resetting the test environment before each test execution.
Since performance testing is typically data-driven, a process is needed to establish test data that is representative
of actual production data in volume and type so that production use can be simulated.
Test Execution
Test execution occurs when the performance test is conducted, often by using performance test tools. Test results
are evaluated to determine if the system’s performance meets the requirements and other stated objectives. Any
defects are reported.
Neeraj Kumar Singh
7. Performance Testing in the Software Lifecycle
Principal Performance Testing Activities
Test Completion
Performance test results are provided to the stakeholders (e.g., architects, managers, product owners) in a test
summary report. The results are expressed through metrics which are often aggregated to simplify the meaning of
the test results. Visual means of reporting such as dashboards are often used to express performance test results in
ways that are easier to understand than text-based metrics.
Performance testing is often considered to be an ongoing activity in that it is performed at multiple times and at
all test levels (component, integration, system, system integration and acceptance testing). At the close of a
defined period of performance testing, a point of test closure may be reached where designed tests, test tool
assets (test cases and test procedures), test data and other testware are archived or passed on to other testers for
later use during system maintenance activities.
Neeraj Kumar Singh
8. Performance Testing in the Software Lifecycle
Contents
3.1 Principal Performance Testing Activities
3.2 Performance Risks for Different Architectures
3.3 Performance Risks Across the Software
Development Lifecycle
3.4 Performance Testing Activities
Neeraj Kumar Singh
9. Performance Testing in the Software Lifecycle
Performance Risks for Different Architectures
As mentioned previously, application or system performance varies considerably based on the architecture,
application and host environment. While it is not possible to provide a complete list of performance risks for all
systems, the list below includes some typical types of risks associated with particular architectures:
Single Computer Systems
These are systems or applications that runs entirely on one non-virtualized computer. Performance can degrade
due to
excessive resource consumption including memory leaks, background activities such as security software, slow
storage subsystems (e.g., low-speed external devices or disk fragmentation), and operating system
mismanagement.
inefficient implementation of algorithms which do not make use of available resources (e.g., main memory)
and as a result execute slower than required.
Multi-tier Systems
These are systems of systems that run on multiple servers, each of which performs a specific set of tasks, such as
database server, application server, and presentation server. Each server is, of course, a computer and subject to
the risks given earlier. In addition, performance can degrade due to poor or non-scalable database design, network
bottlenecks, and inadequate bandwidth or capacity on any single server.
Neeraj Kumar Singh
10. Performance Testing in the Software Lifecycle
Performance Risks for Different Architectures
Distributed Systems
These are systems of systems, similar to a multi-tier architecture, but the various servers may change dynamically,
such as an e-commerce system that accesses different inventory databases depending on the geographic location
of the person placing the order. In addition to the risks associated with multi-tier architectures, this architecture
can experience performance problems due to critical workflows or dataflows to, from, or through unreliable or
unpredictable remote servers, especially when such servers suffer periodic connection problems or intermittent
periods of intense load.
Virtualized Systems
These are systems where the physical hardware hosts multiple virtual computers. These virtual machines may host
single-computer systems and applications as well as servers that are part of a multi-tier or distributed
architecture. Performance risks that arise specifically from virtualization include excessive load on the hardware
across all the virtual machines or improper configuration of the host virtual machine resulting in inadequate
resources.
Neeraj Kumar Singh
11. Performance Testing in the Software Lifecycle
Performance Risks for Different Architectures
Dynamic/Cloud-based Systems
These are systems that offer the ability to scale on demand, increasing capacity as the level of load increases.
These systems are typically distributed and virtualized multitier systems, albeit with self-scaling features designed
specifically to mitigate some of the performance risks associated with those architectures. However, there are
risks associated with failures to properly configure these features during initial setup or subsequent updates.
Client –Server Systems
These are systems running on a client that communicate via a user interface with a single server, multi-tier server,
or distributed server. Since there is code running on the client, the single computer risks apply to that code, while
the server-side issues mentioned above apply as well. Further, performance risks exist due to connection speed and
reliability issues, network congestion at the client connection point (e.g., public Wi-Fi), and potential problems
due to firewalls, packet inspection and server load balancing.
Mobile Applications
These are applications running on a smartphone, tablet, or other mobile device. Such applications are subject to
the risks mentioned for client-server and browser-based (web apps) applications. In addition, performance issues
can arise due to the limited and variable resources and connectivity available on the mobile device (which can be
affected by location, battery life, charge state, available memory on the device and temperature).
Neeraj Kumar Singh
12. Performance Testing in the Software Lifecycle
Performance Risks for Different Architectures
Embedded Real-time Systems
These are systems that work within or even control everyday things such as cars (e.g., entertainment systems and
intelligent braking systems), elevators, traffic signals, Heating, Ventilation and Air Conditioning (HVAC) systems,
and more. These systems often have many of the risks of mobile devices, including (increasingly) connectivity-
related issues since these devices are connected to the Internet. However the diminished performance of a mobile
video game is usually not a safety hazard for the user, while such slowdowns in a vehicle braking system could
prove catastrophic.
Mainframe Applications
These are applications—in many cases decades-old applications—supporting often mission-critical business
functions in a data center, sometimes via batch processing. Most are quite predictable and fast when used as
originally designed, but many of these are now accessible via APIs, web services, or through their database, which
can result in unexpected loads that affect throughput of established applications.
Neeraj Kumar Singh
13. Performance Testing in the Software Lifecycle
Contents
3.1 Principal Performance Testing Activities
3.2 Performance Risks for Different Architectures
3.3 Performance Risks Across the Software
Development Lifecycle
3.4 Performance Testing Activities
Neeraj Kumar Singh
14. Performance Testing in the Software Lifecycle
Performance Risks Across the Software Lifecycle
The process of analyzing risks to the quality of a software product in general. You can also find discussions of
specific risks and considerations associated with particular quality characteristics, and from a business or technical
perspective. In this section, the focus is on performance-related risks to product quality, including ways that the
process, the participants, and the considerations change.
For performance-related risks to the quality of the product, the process is:
1. Identify risks to product quality, focusing on characteristics such as time behavior, resource utilization, and
capacity.
2. Assess the identified risks, ensuring that the relevant architecture categories are addressed. Evaluate the
overall level of risk for each identified risk in terms of likelihood and impact using clearly defined criteria.
3. Take appropriate risk mitigation actions for each risk item based on the nature of the risk item and the level of
risk.
4. Manage risks on an ongoing basis to ensure that the risks are adequately mitigated prior to release.
As with quality risk analysis in general, the participants in this process should include both business and technical
stakeholders. For performance-related risk analysis the business stakeholders must include those with a particular
awareness of how performance problems in production will actually affect customers, users, the business, and
other downstream stakeholders.
Neeraj Kumar Singh
15. Performance Testing in the Software Lifecycle
Performance Risks Across the Software Lifecycle
Further, the technical stakeholders must include those with a deep understanding of the performance implications
of relevant requirements, architecture, design, and implementation decisions.
The specific risk analysis process chosen should have the appropriate level of formality and rigor. For performance-
related risks, it is especially important that the risk analysis process be started early and is repeated regularly.
In addition, risk mitigation and management must span and influence the entire software development process,
not just dynamic testing.
Good performance engineering can help project teams avoid the late discovery of critical performance defects
during higher test levels, such as system integration testing or user acceptance testing. Performance defects found
at a late stage in the project can be extremely costly and may even lead to the cancellation of entire projects.
As with any type of quality risk, performance-related risks can never be avoided completely, i.e., some risk of
performance-related production failure will always exist. Therefore, the risk management process must include
providing a realistic and specific evaluation of the residual level of risk to the business and technical stakeholders
involved in the process.
For example, simply saying, “Yes, it’s still possible for customers to experience long delays during check out,” is
not helpful, as it gives no idea of what amount of risk mitigation has occurred or of the level of risk that remains.
Instead, providing clear insight into the percentage of customers likely to experience delays equal to or exceeding
certain thresholds will help people understand the status.
Neeraj Kumar Singh
16. Performance Testing in the Software Lifecycle
Contents
3.1 Principal Performance Testing Activities
3.2 Performance Risks for Different Architectures
3.3 Performance Risks Across the Software
Development Lifecycle
3.4 Performance Testing Activities
Neeraj Kumar Singh
17. Performance Testing in the Software Lifecycle
Performance Testing Activities
Performance testing activities will be organized and performed differently, depending on the type of software
development lifecycle in use.
Sequential Development Models
The ideal practice of performance testing in sequential development models is to include performance criteria as a
part of the acceptance criteria which are defined at the outset of a project. Reinforcing the lifecycle view of
testing, performance testing activities should be conducted throughout the software development lifecycle. As the
project progresses, each successive performance test activity should be based on items defined in the prior
activities as shown below.
Concept – Verify that system performance goals are defined as acceptance criteria for the project.
Requirements – Verify that performance requirements are defined and represent stakeholder needs correctly.
Analysis and Design – Verify that the system design reflects the performance requirements.
Coding/Implementation – Verify that the code is efficient and reflects the requirements and design in terms of
performance.
Neeraj Kumar Singh
18. Performance Testing in the Software Lifecycle
Performance Testing Activities
Component Testing – Conduct component level performance testing.
Component Integration Testing – Conduct performance testing at the component integration level.
System Testing – Conduct performance testing at the system level, which includes hardware, software,
procedures and data that are representative of the production environment.
System Integration Testing– Conduct performance testing with the entire system which is representative of
the production environment.
Acceptance Testing – Validate that system performance meets the originally stated user needs and acceptance
criteria.
Neeraj Kumar Singh
19. Performance Testing in the Software Lifecycle
Performance Testing Activities
Iterative and Incremental Development Models
In these development models, such as Agile, performance testing is also seen as an iterative and incremental
activity. Performance testing can occur as part of the first iteration, or as an iteration dedicated entirely to
performance testing. However, with these lifecycle models, the execution of performance testing may be
performed by a separate team tasked with performance testing.
Continuous Integration (CI) is commonly performed in iterative and incremental software development lifecycles,
which facilitates a highly automated execution of tests. The most common objective of testing in CI is to perform
regression testing and ensure each build is stable.
Performance testing can be part of the automated tests performed in CI if the tests are designed in such a way as
to be executed at a build level.
Neeraj Kumar Singh
20. Performance Testing in the Software Lifecycle
Performance Testing Activities
However, unlike functional automated tests, there are additional concerns such as the following:
The setup of the performance test environment – This often requires a test environment that is available on
demand, such as a cloud-based performance test environment.
Determining which performance tests to automate in CI – Due to the short timeframe available for CI tests, CI
performance tests may be a subset of more extensive performance tests that are conducted by a specialist
team at other times during an iteration.
Creating the performance tests for CI – The main objective of performance tests as part of CI is to ensure a
change does not negatively impact performance. Depending on the changes made for any given build, new
performance tests may be required.
Executing performance tests on portions of an application or system – This often requires the tools and test
environments to be capable of rapid performance testing including the ability to select subsets of applicable
tests.
Neeraj Kumar Singh
21. Performance Testing in the Software Lifecycle
Performance Testing Activities
Performance testing in the iterative and incremental software development lifecycles can also have its own lifecycle
activities:
Release Planning – In this activity, performance testing is considered from the perspective of all iterations in a release,
from the first iteration to the final iteration. Performance risks are identified and assessed, and mitigation measures
planned. This often includes planning of any final performance testing before the release of the application.
Iteration Planning – In the context of each iteration, performance testing may be performed within the iteration and
as each iteration is completed. Performance risks are assessed in more detail for each user story.
User Story Creation – User stories often form the basis of performance requirements in Agile methodologies, with the
specific performance criteria described in the associated acceptance criteria. These are referred to as “nonfunctional”
user stories.
Design of performance tests –performance requirements and criteria which are described in particular user stories are
used for the design of tests
Coding/Implementation – During coding, performance testing may be performed at a component level. An example of
this would be the tuning of algorithms for optimum performance efficiency.
Testing/Evaluation – While testing is typically performed in close proximity to development activities, performance
testing may be performed as a separate activity, depending on the scope and objectives of performance testing during
the iteration.
Delivery – Since delivery will introduce the application to the production environment, performance will need to be
monitored to determine if the application achieves the desired levels of performance in actual usage.
Neeraj Kumar Singh
22. Performance Testing in the Software Lifecycle
Performance Testing Activities
Commercial Off-the-Shelf (COTS) and other Supplier/Acquirer Models
Many organizations do not develop applications and systems themselves, but instead are in the position of
acquiring software from vendor sources or from open-source projects.
In such supplier/acquirer models, performance is an important consideration that requires testing from both the
supplier (vendor/developer) and acquirer (customer) perspectives.
Regardless of the source of the application, it is often the responsibility of the customer to validate that the
performance meets their requirements.
In the case of customized vendor-developed software, performance requirements and associated acceptance
criteria which should be specified as part of the contract between the vendor and customer.
In the case of COTS applications, the customer has sole responsibility to test the performance of the product in a
realistic test environment prior to deployment.
Neeraj Kumar Singh
25. 1. When applying the principal performance testing activities, when should the test cases be ordered into
performance test procedures? ?
Select ONE option.
Answer Set
a. Test planning
b. Test analysis and design
c. Test implementation and execution
d. Test closure
Performance Testing in the Software Lifecycle
Sample Question
26. 2. Consider the following technical environments:
1. Virtualized
2. Dynamic/Cloud-based
3. Client/Server and Browser-based
4. Mobile
5. Embedded
6. Mainframe
Which of these is most likely to have a performance risk due to memory leaks?
Select ONE option.
Answer Set
a. 1, 2, 3, 6
b. 2, 3, 4, 5
c. 1, 2, 4, 6
d. 1, 3, 4, 5
Performance Testing in the Software Lifecycle
Sample Question
27. 3. You are working on a project that tracks health history information for patients across a region. The number of
records handled by the system is in the millions due to the large number of patients in the region. Patient
information must be accessible to doctors in offices, hospitals and urgent care facilities. The information should be
presented to the requestor within three seconds of request, particularly for patients with critical allergies and
preconditions.
Given this information, when is the best time in the project to analyze and assess the performance risks?
Select ONE option.
Answer Set
a. During the requirements phase and again just prior to executing the performance tests
b. After design but prior to coding
c. During system testing and again prior to the performance tests
d. Repeatedly throughout the requirements, development and performance testing
Performance Testing in the Software Lifecycle
Sample Question