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When software applications are developed, valuable time and resources are consumed during testing. Parallel testing attempts to optimize the testing process. A parallel test means testing an application in different parts (project suites) or the testing of multiple applications. Intermediate testing happens parallel to the software development and production process. It results in faster turnaround time in software deployments.

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Whenever any software product is implemented, there is a compatibility issue between the old and the new environment. This is where parallel testing serves its purpose. Transitioning from old to new environments is a challenge for any organization. The legacy data that is stored in mainframes and microcomputers need to be transferred seamlessly to the new environment. Parallel testing during development is a vital necessity since it ensures that the newly developed system is compatible with the existing one.

Continuous integration is the name of the game today in software development, with developers trying out diverse features and test cases. If you wait for one testing process to get completed in entirety before you begin another, it is doomsday before deployment. Testing hours will simply multiply if you wish to conduct 3-4 different tests in multiple browsers like Mozilla, Chrome and the Internet Explorer. Thus, with intermediate testing in place, IT professionals can test for wider compatibility. A viable solution is intermediate testing that helps you quicken the testing process and park more time for quality control in light of the results.

Testing in parallel environments means that the test is carried out in multiple devices as well like the Android and the iOS. For example, if your testing process involves 14 hours of the test in 10 parallel environments, the complete test coverage will require 140 hours. Whereas in parallel testing the testing process consumes only 14 hours, thereby making a saving of 126 hours. Execution time is drastically reduced when compared to sequential testing. Parallel testing in most cases relied on virtual machines within a cloud. By making use of cloud technology, it enables software developers to stay updated with current trends and technologies. In addition to these advantages, parallel testing renders the entire testing process affordable. It is a cost economic way to ascertain compatibility between the new system and the legacy systems.

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Parallel testing is worthwhile when data migration is involved between the existing software and the newly developed software. It helps in checking if there is any difference between the data formats in the old and new versions. The focus is on the new application, checking for optimum performance, consistency and integrity. It is helpful in checking if the systems are functioning smoothly after deployment of the new system. Whether the intended output is experienced by the user, is thoroughly analyzed in intermediate testing, and any changes to be made are carried out in a faster manner, when compared to sequential testing.
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Abinaya Pakirisamy is the SDET at Zuci. She is responsible for the create & manage bug reports and communicate with the team .Get in touch with her at Abinaya Pakirisamy.