List of the Best Software Testing Companies & QA Firms
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LambdaTest is a scalable cloud-based cross browser testing platform designed to offer all website or web app testing need to cloud infrastructure. LambdaTest platform helps you to ensure your web app elements (such as JavaScript, CSS, HTLM5, Video...etc.) render seamlessly across every desktop and mobile web browser wi ... read more about LambdaTest
"Reliable tool for automating the functional testing."Damini Passi< $25/hr50 - 2492017United States -
Get more from outsourced QA services – keep your software testing under control UTOR is an easily managed Software Testing company that helps growing product and development agile teams to implement their business ideas. We extend your in-house QA capabilities, automate where possible, bring in the rig ... read more about UTOR - QA services and Software Testing company
"Delivered above and beyond my expectations, I look forward to our next engagement"Michael Kelly, CEO & Founder at Regenerative by Community$25 - $49/hr10 - 492016Estonia -
QAlified is a software testing and quality assurance company specialized in solving quality problems by reducing risks, maximizing efficiency and strengthening organizations.An independent partner to evaluate software quality with experience in different technologies for any type of software.
"A Comprehensive Review of QAlified's Software Testing Partnership with Sprout"Jeremy Huffman, Director of Technology at Sprout$25 - $49/hr10 - 491992Uruguay -
KiwiQA Services is an Australia based quality focused & knowledge-centric firm. KiwiQA Services, offers a wide range of testing solutions and services across industry domains, with a primary focus on risk management and implementable solutions. KiwiQA is dedicated to “Quality” to provide world-class tes ... read more about KiwiQA Services
"Excellent QA Service"Scott Hunley, Devops Manager at Long Tail Technology< $25/hr50 - 2492009Australia -
Testscenario, founded in 2014, is a one-stop shop for all of your QA needs and desires.We are a passionate Software testing firm that provides a wide range of customers with Quality Assurance Software testing services.Testscenario is a specialist QA and testing firm with more than 8 years of experience in the field
"Excellent Tech Partnership with Testscenario Smooth & transparent working experience! "Alphabin Technology Consulting$25 - $49/hr10 - 492014India -
100% focused on Test Automation to deliver frameworks and solutions that reduce costs & increase efficiency to get better digital products, faster.Test automation first approach is a main driver in modern agile development. Achieving better automated tests coverage increase software testing speed twice, providing q ... read more about Zappletech
"Zapple helped us test our web banking app. Everything was great"Adam Sayers$25 - $49/hr10 - 492015Poland -
PFLB specializes in performance testing and performance engineering services. We help companies find and resolve performance bottlenecks such as ill-performing API calls or slow database queries.Our deep understanding of the space helps companies gain more confidence around launching apps in production. ... read more about PFLB
"Load testing of our Electronic health record software"Sudhakar Akkala, General Manager at Napier Healthcare$50 - $99/hr250 - 9992008United States -
QA Mentor is multi-awards winning a CMMI level 3 and ISO-certified leading software testing company founded in 2010 with headquarters in New York, USA. The company excels in delivering superior Software Quality Assurance (QA) with their 30+ QA testing services that are availed by clients like Bosch, Morgan Stanley, Ama ... read more about QA Mentor
"Very professional and solid"Lindsey Allard, Co-Founder at PlaybookUX< $25/hr250 - 9992010United States, India -
Abstracta is a leading, pure-play and independent software testing services company founded in 2008 with offices in California and Latin America. We offer testing consultancy services centered on building custom, dedicated testing teams. Our teams have the added value of being able to leverage all of Abstracta’s ... read more about Abstracta
"Great results and a knowledgeable team"Daniela, Business Development Associate at at wrnch$50 - $99/hr50 - 2492008United States -
SHIFT ASIA is a leading software testing and quality assurance company based in Vietnam and was founded in 2016. With their team of QA experts and professional full-stack engineers, they specialize in offering a wide range of QA services, including ad-hoc testing, vulnerability testing, GUI testing, etc.
"Development & Testing for WordPress feature about task and Q&A management"YUSHI KODAMA, General Manager at Jienie Lab ASIA. Co., Ltd< $25/hr50 - 2492016Vietnam, Singapore -
Next Big Technology (NBT) is a premium Web & App Development firm established in 2009. NBT always uses the latest technologies for Website & Mobile App development. As an applications development company, we know how to build websites and apps that utilize proper design and programming to build products that ... read more about Next Big Technology(NBT)
"Very helpful, always quick to reply and help with any problems."Andrew McIlravey, Marketing & Business Support Associate at Sonas Systems< $25/hr50 - 2492009India -
SimbirSoft is a global IT outsourcing service provider. We offer world-class custom software development services and complex technical solutions: high-load products, software for industry, banking and finance, medicine, retail, and many other industries. Since 2001, we have implemented 1190+ projects ... read more about SimbirSoft
"The whole experience was very good, and I’m looking forward to our future cooperation!"Lev Bein, IT Analyst at LB Internet Solutions$50 - $99/hr1,000 - 9,9992001Russia -
Established in 2016, BugRaptors is an independent quality assurance and software testing company. Listed as one of India and the USA's top software testing companies, the company provides a highly diversified range of services varying from standard testing services, specialized testing services, to test adviso ... read more about Bugraptors
"BugRaptors is an excellent partner for augmenting our test team"Brad DerManouelian, Senior QA Manager at Allego< $25/hr250 - 9992016India -
Founded in 2003, a1qa is one of the independent software testing and quality assurance (QA) companies. a1qa offers its services for all software types, including any PPAs or custom-developed software. The company has reputed certifications like ISO 9001:2015, PMI-ACP, and PMP certifications, and its premium clients inc ... read more about a1qa
"Remote QA team that feels like in-house"Robert Hager, Chief Business Analyst at Simpson Strong-Tie$25 - $49/hr1,000 - 9,9992003United States, United Kingdom -
We are a software testing company from Poznan, Poland. We housed QA Engineers to test client’s web or mobile application through quick Body & Team Leasing or Project-Based Outsourcing.We had a chance already to work with clients from the US, UK, Sweden, Dubai or Netherlands.And we worked for compani ... read more about Apphawks
"Simple but very professional"Johan Dahl, CTO at at Barnebys$25 - $49/hr2 - 92017Poland -
Ubertesters is the leading global provider of a cloud-based, process management tool for mobile applications beta testing to ensure an accurate, fast and cost effective mobile testing process that results in high quality, flawless, mobile app.
"Provide value for money services."Anonymous, Engineering Manager at Telecom Software Services$25 - $49/hr50 - 2492012United States -
HikeQA is one of the top USA-based independent software testing services companies. This QA agency provides exceptional testing services, including Functional testing, performance testing, App testing, and Web testing. They provide 24/7 customer support and claim a money-back guarantee to dissatisfied clients. ... read more about hikeQA
"Very nice experience and quality of services is very good"Sonal Tripathi, manager at HikeQA< $25/hr10 - 492020India, United States -
Fleek IT Solutions is one of the best top-notch software testing companies. We are engaged in providing cost-effective testing services to help you avail of quality assurance services. We have been in this business for years of time and have adapted to the latest technologies to serve you better all the ... read more about Fleek IT Solutions
"Best Testing company in India"Bill Kandohla, CEO at MODV Company< $25/hr50 - 2492016India -
Savarian is a progressive, experienced team that offers flexible terms and affordable software testing services of any kind and purpose for clients worldwide.We are flexible in cooperation with clients and can set up teams based on your business needs and the types of testing you require: from regression to user a ... read more about Savarian.tech
"Savarian.tech provided us with an in-house testing team that helped us improve our internal processes and increase the quality of products we work on."Yurii Maslov, CTO at DigitalSuits$25 - $49/hr10 - 492019UAE -
We provide IT staff augmentation services to our clients through our service centers in Poland, Lithuania, Serbia, Estonia, and Ukraine. We carefully select the best people to match your IT needs, language requirements, and company culture. Our experts work directly with your team and we take care of all supportin ... read more about pwrteams
"Find.me is what it is thanks to Skelia."Stefan$25 - $49/hr250 - 9992008Luxembourg -
TestMatick offers end-to-end software test services to a diverse clientele. The company is a leading provider of QA testing and holds expertise in more than 20 types of testing services, such as mobile testing, functional testing, automated testing, usability testing, localization testing, and more.
"It saved us from big issues and helped us in becoming more scalable. "Muhammad Akhtar, Owner at Software Testing LeadNA50 - 2492009United States, Ukraine -
Why OKQA is more than just testing? We are not a company that comes and goes. We are a QA team that can become your long-term partner for on-demand software testing or ongoing QA tasks.We do not only provide manual and automation software testing services. We deliver comprehensive QA audits for e-commerce businesses ai ... read more about OKQA
"Outstanding with exceptional attention to detail when it comes to testing"Leo J Barnett, Founder & CEO at Reelshot - Pro camera & video editor< $25/hr2 - 92020Ukraine -
Agilites offers software development and testing outsourcing services in the form of building dedicated teams of Web/Mobile Developers, QA engineers, PMs, and other IT experts who create and ensure the quality of software products for companies in different industries. We also provide independent testing and QA of soft ... read more about Agilites
"Very happy with their testing service."Pavel Kovalev, VP Product Development at Websoft$25 - $49/hr50 - 2492012Ukraine -
Krify is a bespoke mobile applications and software services provider based in UK, USA and India. Creating value for our clients is our passion and software technology is our forte. Our core competency includes Mobile App(Android, iOS, and Flutter), Web, Wearable app development and Digital marketing services. Krify ex ... read more about Krify UK Limited
"The team helped me immensely, truly a gem of an organization to work with."Deepak Singla, Country Lead - Performance & Analytics Business at BMC Software< $25/hr50 - 2492005United Kingdom -
UpDoer is an independent software testing and QA company and has established with the aim to deliver high-quality products according to the current market trends with the help of complete software testing/QA process. "We believe in work" and not just talking about work. We follow the best Quality Assurance pr ... read more about UpDoer Technology
"High responsiveness & professionalism"Poonam Bhardwaj, Business Specialist at Saletancy< $25/hr10 - 492017India -
Our mission is to Empower and Enhance the lives of Billions of users through Profound technology solutions. We invite you to Think Big and join this movement as our Clients, Partners and Employees. Our services are designed to take your business to the next level, re ... read more about Cyber Infrastructure Inc.
"A good partner for webdevelopment and appdevlopment projects"Hendrik Schmidt< $25/hr1,000 - 9,9992003United States -
247 Labs is a team of trained, certified and experienced developers, designers & product managers who follow a hybrid approach of Lean & Scrum process to deliver application development projects with excellence. We work with Agencies, startups, SMB (Small Medium Businesses) and other industry agencies t ... read more about 247 Labs
"Mobile app development "Elmira Galiyeva, Manager, Toronto North Local Immigration Partnership at JVS Toronto$100 - $149/hr50 - 2492013Canada -
NEX Softsys is a technological partner for global enterprises and startups, with the mission of empowering industries through excellence through integrated IT solutions. Since 2009, we have provided innovative software and data-based solutions to many companies, attending various countries, including the USA, Australia ... read more about NEX Softsys
"Great Team and very good customer service"Deepak Sakhrani, Director at Hiya Digital Private Limited$25 - $49/hr50 - 2492003United States -
The company’s mission is to help global organizations overcome technology challenges of Digital Transformation with the focus on new and emerging technologies, which we believe should make a positive impact on each area of our lives, making it simpler, smarter, and opening new promising horizons.Delivering innova ... read more about DigiPrima Technologies Pvt. Ltd.
"eCommerce Website Development for Tajik Home LLC with Quality Assurance."Joseph Zisa, eCommerce Specialist at TajikHome LLC< $25/hr10 - 492016India -
Vyshnavi Information Technologies India Private Limited (VIT) is a global Information Technology Company established in the year 2001 with headquarters in Bangalore, having development centers in Bangalore, Pune, US and Canada. Our range of services includes Design, Development and Testing of software components for Pr ... read more about Vyshnavi Information Technologies (India) Pvt. Ltd
"Review of VIT"Steve Hyde, Director, Operations and Quality Assurance at TRADING CENTRAL$25 - $49/hr250 - 9992001India -
A culture of innovation has enabled us to create cost-effective and highly scalable software products within budget and timeline for our clients which facilitate their progress and growth.Working as a partner with our clients, we are dedicated to developing effective outsourcing partnerships in order to reduce operatio ... read more about Devstringx Technologies Pvt Ltd
"Good system development solution and good maintenance supports provided to the clients"Khounphon Philakone, IT Project Manager at TK Group/LaoWorld Public< $25/hr50 - 2492014India -
9Yards Technology is a preeminent IT service provider rendering top-notch IT services worldwide. Since our inception, we have successfully served 500+ global clients as their strategic technology partners, including numerous Fortune 500 companies, tech giants, and a multitude of progressive startups. Our efficacious en ... read more about 9YARDS IT TECHNOLOGY PRIVATE LIMITED
"Experts in the field of QA. Best outsourcing team to work"RP Singh, Sr. Business Manager at Mobilecoderz< $25/hr50 - 2492020India -
QATestLab is an international QA and testing provider with headquarters in Cyprus and R&D centers in France, Poland, Cyprus, and Ukraine. We have 18+ years of experience delivering high-quality testing services for our partners working in such business domains as Software Development, Gaming, Business Solutions, E- ... read more about QATestLab
"Quick and highly professional"Виталик Лобода, Marketing Manager at Run Ukraine< $25/hr50 - 2492005Ukraine -
Kualitatem Inc. is an independent Software Testing Company, Information Systems Security and Auditing Company providing services to a global clientele. Core software quality assurance services cover the entire testing lifecycle focused on software automation testing, manual functional testing, application performa ... read more about Kualitatem Inc.
"Outstanding Software Testing Services"Scott Andery< $25/hr50 - 249United States -
Founded by a real QA tester BespokeQA has dealt with testing, structuring, creating solutions for more than twenty-five clients across ten industries for last more than one year. Our mission is to help clients make distinctive, lasting and substantial improvements in their business and to continue building a great comp ... read more about BespokeQA
"Reliable and Smart team"Vivek Kapoor< $25/hr2 - 92019India -
Our purpose is to deliver complex digital solutions in web related industries like e-learning, e-commerce and social media marketing.Share with us your pitch and ideas, we learn your trade, we will involve our team, technologies, and techniques that will grow and raise your business. We have seen with each customer tha ... read more about QTeam Software Solutions
"Top notch quality"Andrei Dobrin, QA Manager at at Zitec$50 - $99/hr2 - 92016Romania -
We specialize exclusively in independent software QA and testing services. But our task is not limited to finding defects and preventing them. Our goal is much broader — to help you create a quality product and make sure that the functionality will profit for your business. Since 2010 our team has successfully ... read more about Kavichki
"Expert testing team"Olga Neroda, Сhief Marketing Officer at at Teachbase< $25/hr10 - 492010Russia -
VisionQA is the global leader in next-generation software testing and QA Consulting. We help SMEs and Fortune 500 companies to deliver digital transformation and technology services, enabling global 50+ clients to stay one step ahead of disruption. For over 5 years we have been providing independent software QA and ... read more about VisionQA Services
"Reliable and responsive"BibiNogs India< $25/hr10 - 492020India -
Asabix is a software development company in the fields of logistics, warehouse accounting, booking, restaurant, e-commerce, and online exchangers. Our projects work on the frameworks of Symfony, Laravel, and Yii2. Additionally, the company has many years of experience developing applications for iOS and Androi ... read more about Asabix
"Development multi-page website and website support"Olga Novikova$25 - $49/hr10 - 492017Ukraine -
QAsupermarket is a place where you can get your software tested by professionals with the maximum automation of processes and with the minimum time and money expenses. QAsupermarket will cover all test types you need on any platforms you need. Professional tools such as Online Bug Tracking System and easy-to-use ... read more about QA Supermarket
"Excellent experience using QA supermarket"Fern Bazuin, Quality Assurance Manager at at RoomRaccoonNA2 - 9United States -
We are a nearshore boutique Quality Assurance firm that focuses on helping your products reach your customers with maximum quality.Unlike other outsourcing companies, our testers integrate very tightly with your team, helping your developers reach their goals. Our rates are lower than hiring in the United States, ... read more about Outpost QA
"Top notch Quality Assurance engineering team delivering tangible value at a very reasonable cost"Tyler Newman, Director Of Quality Assurance at at Owlet Baby Care$25 - $49/hr10 - 492020Mexico -
At TopSquad, we specialize in delivering IT solutions and services that are customized to the unique needs of established companies seeking to achieve further business growth. Our team possesses extensive knowledge of modern technologies, transparent processes, and in-depth expertise across various business domains. We ... read more about TopSquad
"TopSquad helped us implementing a marketing automation system"Hiro Takeda< $25/hr50 - 2492008Vietnam -
Successive Digital is a next-gen technology consulting services company purpose-built for the speed of modern business. We transform businesses across all touchpoints of customer experience with our digital transformation solutions.We strive to emerge as the long-term center of innovation and excellence partner fo ... read more about Successive Digital
"Successive Digital made our project the best it could be; they are proficient in the technicalities."Debashree Jain, Tech lead at Pickcel Digital Signage$25 - $49/hr250 - 9992012India -
KMS Technology is a global market leader in software development, testing services, and top-tier technology consulting. With a customer-centric approach, both our US-based and offshore development teams aim to fuel organizational innovation by helping modernize your existing systems or bring new software visions to lif ... read more about KMS Technology
"Good services, good team, though the charge is premium"Nguyễn TrườngNA1,000 - 9,9992009United States -
We at CodeBright believe in improving the world using technology. We work with startups, small/large companies, and non-profit organizations to bring Minimal Viable Products (MVPs) to the market, improve/streamline/automate business processes, raise efficiency/productivity, reduce costs, solve business challenges, and ... read more about CodeBright
"A US-Based IT Partner We Trust"Richard Anglin, CEO at telmedxNA50 - 2492015United States -
We provide end-to-end mobile design and development services globally. From award-winning B2C native applications to robust cross-platform enterprise-grade mobile solutions, Algoworks innovates applications with the latest tech trends. Feel free to have a quick discussion with our architects to find out the b ... read more about Algoworks
"The team at Algoworks is professional, consistently meeting timelines."Manu Raj Patel, Senior Business Analyst at Indian Oil and Gas Canada< $25/hr250 - 9992006India -
XB Software is a full-cycle development company that has many years of expertise in building custom web and mobile solutions. We have a strong and dedicated team of IT professionals engaged in IT Consulting, Web & Mobile App Development, Business Analysis, UX/UI Design, as well as QA and Software Testing. We o ... read more about XB Software
"High-quality work and pleasant interaction"Yuliya Egorova, Analysis at Own Business$25 - $49/hr50 - 2492008Poland -
Aryavrat Infotech Inc. is one of the reputed IT Solutions companies in US with a prime focus in the field of Software Development Services. We have an experienced, innovative and dynamic team of experts with a focus to provide software development outsourcing and offshore software services for individuals, small- and m ... read more about Aryavrat Infotech Inc.
"Very Reliable & Trusted Technology Partner for Staffing & Recruitment Industry"Aksahy Sharma< $25/hr50 - 2492009United States -
Newwave Solutions ranked among the top 10 software companies in Vietnam and is recognized globally as one of the top 100 sustained software companies. With 12 years of experience and a dedicated team of over 300 members, we're committed to excellence. WHAT WE'VE ACHIEVED: 🏆 Vietnam's Top 10 ICT Com ... read more about Newwave Solutions Jsc
"Newwave Solutions, a custom software management company, produced software for our company on demand"Krystal Paolo, Project Manager at Pank Education< $25/hr250 - 9992011Vietnam
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Get a Personalized ShortlistWhat is Software Testing?
The software testing definition connotes the process of verifying whether the final software solution resembles the anticipated outcomes. Software testing assists in distinguishing bugs/errors or gaps in the coding as well as any conflict in the set of requirements provided by the client. Moreover, the software testing services also warrant that the software system is error-free.
How Does Software Testing Benefit Businesses?
Software testing is extremely beneficial for the successful deployment of software. The following are the most vital advantages of performing software testing:
1. Saves Money:
Some businesses believe investing in software testing is costlier. However, it saves a substantial amount for the business in the long run. Deploying faulty software will cost you and your clients a lot of money. An undetected bug during the later stages of the development process is ideally more difficult and expensive to resolve. An undetected bug during the later stages of the development process is ideally more difficult and expensive to resolve.
2. Prevents Calamities:
Defects in software designed for emergency purposes or having crucial functions such as emergency alerts or monetary transactions can have disastrous effects. Communication breakdown, loss of data, or system blackouts can lead to complete system failure. Software testing solutions resolve these issues in the initial development phase, which helps businesses avoid catastrophes.
3. Builds Reputation:
An error-free software will gain more praise from its clients and users. Clients are more likely to trust a business that delivers bug-free software. This can only be achieved with the assistance of top software testing service companies. Moreover, automated software testing can also help build long-term relationships with the clientele while boosting revenue.
4. Offers Customer Satisfaction:
As mentioned above, clients rely more on companies that offer problem-free software. Simultaneously, software that has a smooth operation and does not glitch provides unmatched client satisfaction. Moreover, for any company, delivering exceptional user experience is crucial as that can make or break the product.
5. Easy Integration:
The software may not necessarily work independently. Software testing techniques can come in handy in such situations in ensuring that the software seamlessly integrates with any existing program. Automated software testing can also provide detailed analysis regarding the performance of all active systems.
Which Are the Different Software Testing Methodologies?
Software Testing Methodology is the strategy implemented to deliver a product that meets the client's expectations. The testing methodology defines the objective of the test, its strategies, and its deliverables. The testing models are somewhat similar to software development structures.
The most popular testing methodologies are the Waterfall Model, Iterative development, and Agile methodology.
1. Waterfall Model
The waterfall testing model progresses sequentially, similar to the software development phase. Each phase commences only once the previous phase is finished.
This software testing model is very simple to design and handle. The testing requirements are clearly outlined beforehand, allowing easy testing of each system segment. However, since each phase can only begin once the previous stage is cleared, it makes it difficult for the model to accommodate unplanned events.
2. Iterative Model
In iterative software development, a larger project is subdivided into smaller parts, which are subjected to numerous iterations of the waterfall methodology. The complete system undergoes testing, with the completion of an iteration. The feedback generated from testing is subsequently incorporated into the next cycle.
The chief benefit of iterative development is that the reports from each cycle of the tests are used in the next cycle, enhancing the testing process. There is a drawback, however, as this methodology increases communication overheads.
3. Agile Methodology
In Agile methodology, the software is created in incremental, rapid cycles. Similarly, Agile testing analyses the codes after every cycle. This warrants that every bug is fixed before the next release.
This testing procedure is ideal for projects that require frequent changes or moderation. Although for the success of this testing methodology, it is crucial that there is a constant interaction between the software testers, developers, and clients.
What Are the 6 Stages of Software Testing Life cycle?
Software Testing Life Cycle (STLC)refers to the various phases of the software testing procedure. Software testing is a very significant stage in the software development life cycle (SDLC) which determines the quality of the end product. During the development stage of SDLC, the software testers analyze and establish the scope of testing. This is essential as it significantly reduces the software test cycle time. Post-testing stage, the software is then fixed for bugs and ready for deployment.
1. Requirement Analysis:
Requirement Analysis is the primary step of the Software Testing Life Cycle (STLC). This phase concentrates on understanding the requirement bar set by the client. The quality assurance team coordinates these details with the stakeholders to better assess which systems are to be tested. This stage is executed in parallel with the Requirement gathering phase of SDLC.
2. Test Planning:
Test Planning, as the name suggests, is crucial for formulating all testing plans. The software testers estimate the effort and cost invested in testing the project. The software test plans also classify the metrics, thereby outlining the course to gather and track those metrics.
3. Test Designing:
The next phase is test designing or test case development. In this, the software testers transcribe multiple detailed test cases. The testing team analyzes and prepares the required test data and breaks it down into numerous sub-tests to improve coverage. This step also determines the test exit criteria, highlighting when to conclude the testing.
4. Test Environment Setup:
Quality analysts set up a test environment to duplicate the end-users work conditions. The test environment setup includes installing a database server, front-end operating environment, client operating system, etc. Since this stage performs independently, software testing teams can establish a testing environment simultaneously with the test design phase.
5. Test Execution:
Once the testing team formulates the test designs and sets up the test environment, test execution is launched at full speed. This phase ensures that the testing module's entry criteria are met and that each output is documented appropriately. The tests are repeated sequentially until every bug and system error is resolved.
6. Test Closure:
This is the final stage of the software testing life cycle, which concludes the process of testing. This phase is essential since it ensures that all the open severity defects are tackled, and all the test cases are executed deliberately. The test matrices, final test reports, test closure reports, etc., are deliverables after this point.
What Are the Types of Software Testing?
There are two chief software testing types:
- Functional Testing
- Non-Functional Testing
1. Functional Testing:
Functional Testing authenticates the software system against operational requirements as well as specifications. The main goal of functional Testing is to verify the critical operations of the system, its basic usability, and accessibility while checking for error conditions.
The four main Functional Testing categories are as follows:
1. Unit Testing: Unit Testing focuses on individual components of the software to ensure that the system functions as expected—unit tests aid software testers in fixing bugs and defects in the earlier stages of the development cycle. Hence, coders can make changes in the codes as required.
Unit testing can be automated as well as performed manually. The testers can isolate groups of code and test them rigorously. This helps in identifying unnecessary dependencies amongst the codes which should be eliminated. A vital benefit of unit testing is that it authorizes programmers to restructure existing codes to ensure the module functions flawlessly.
2. Integration Testing: Integration testing logically assembles software modules in a group and tests them. This allows testing service providers to identify and resolve bugs hindering communication between the different software modules. Integration testing also covers the impromptu changes made in the software, which might not have been unit tested.
Integration Testing can be executed via the Big Bang or Incremental approaches. This testing procedure mainly concentrates on the data flow between segments of software. For instance, when a user enters their login credentials and clicks on the login button, they must be directed to the software's main page. To ensure this, integration testing analyzes the interface link between the login and home pages.
3. System Testing: System testing validates the complete application. It ensures that the end-to-end functioning of the system meets the quality standards set by the client. System testing is generally performed by independent software testers who haven't contributed to the development of the software in any way. This ensures that the results and reports delivered are accurate and unbiased.
Automated software testing also studies the result of every input in the system to ensure that desired outputs are achieved. Moreover, it also tests the experience of the users. Besides the business requirements, system testing also validates the application's architecture.
4. Acceptance Testing: Acceptance testing, also known as User Acceptance Testing (UAT), is performed to assess whether the system is ready for deployment. Clients or end-users do these tests to ensure the integrity of the application. During software development, there are chances that specific user requirements may not be adequately communicated to the developers. This may result in the development of a highly different system from what the user requested.
Acceptance testing implements the following steps.
- Analysis of Client Requirements
- Distinguish Test Scenarios
- Formulating UAT Test Plans
- Run Test Cases
- Record Results
- Confirm Objectives
Once this testing procedure is completed and the system passes the tests, the program is moved to production.
2. Non-Functional Testing:
Non-Functional Testing verifies the non-operational aspects of a software application, such as performance, usability, reliability, etc. It is intended to assess the readiness of the software that is not tackled by Functional Testing.
For example, Non-functional Testing checks the number of people who can simultaneously log in to an application.
The key objectives of Non-functional Testing are:
- Increase usability, maintainability, efficiency, and other criteria of the product.
- Decrease production risk and cost.
- Optimize product installation.
- Accumulate metrics for internal R&D.
The following are the different software testing types of Non-functional testing modules:
Apart from the above-mentioned, testing service companies also offer Automation testing, Compatibility testing, Compliance testing, Load testing, etc.
Businesses can also opt for additional software testing tools to improve the implemented software testing techniques. Some popular software testing tools are A/B testing software, QA testing software, Beta testing software, etc.
GoodFirms Research Process
Testing is a highly crucial part of the software development process. However, an even more important task is selecting the ideal partner from all the available software testing service companies. GoodFirms focuses on highlighting the top software testing companies after analyzing them based on an extensive research methodology.
The researchers at GoodFirms have ranked these testing companies after studying their merits across numerous qualitative and quantitative determinants. These software application testing companies have bagged a position in the above list due to their outstanding software testing services and expertise in testing support. Furthermore, GoodFirms acknowledges their contribution to the market and the years they have been in the testing industry. Our team of experts also calculates the feedback and reviews these testing companies have received from their prior clients to assess their reliability further.
We strive to bring the best software testing service providers into the spotlight by marking them in every performance aspect. This allows service seekers to discover and hire the best software application testing company for their products. The above-listed testing service companies have worked for small-scale, mid-scale, and large-scale enterprises. They have a team of software testers with years of experience providing top software quality assurance services.
As a dedicated research and review platform, getting listed with us helps businesses gain a standing in the industry while building a reputation amongst their clients and competitors. GoodFirms encourages all new and established software testing companies to participate in future research processes by submitting proof of their work and getting listed in our 'Research' division.