Lightning can occur between opposite charges within the thunderstorm cloud (intra-cloud lightning) or between opposite charges in the cloud and on the ground (cloud-to-ground lightning). Lightning is one of the oldest observed natural phenomena on earth.
SYSTEM TESTING Fundamentals. DEFINITION. System Testing is a level of the software testing where a complete and integrated software is tested. The purpose of this test is to evaluate the systemâs compliance with the specified requirements. Definition by ISTQB. 1  system testing: The process of testing an integrated system to verify that it meets specified.
Software testing is the process of validating and verifying that a computer program, application or product: 1  meets the requirements that guided its design and development, 2  works as expected, 3  can be implemented with the same characteristics, 4  and satisfies the needs of stakeholders.