Comprehensive and Detailed Explanation From Exact Extract:
Theshift-left approachfocuses on executing testing activitiesas early as possiblein the software development lifecycle, including static testing, unit tests, and early reviews. Activities like writing tests before code (test-first) and continuous integration are central to this principle.
However, performingnon-functional testing at the system test levelhappenslaterin the lifecycle and doesnotalign with the shift-left philosophy.
“The shift-left approach involves the adoption of practices to move tasks related to testing (e.g., reviews, test design) to earlier stages in the lifecycle.”
(ISTQB CTFL v4.0 Syllabus, Section 2.1.5 – Shift-Left Approach)
“Non-functional testing is often performed at the system test level, but the shift-left approach aims to begin such testing earlier, possibly at integration or even unit levels.”
(ISTQB CTFL v4.0 Syllabus, Section 2.2.2 – Test Types)
Therefore,Option Ddoes not correspond to shift-left practices and is the correct answer.
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