Two ISTQB® automation certifications often get confused: CT-TAE (Test Automation Engineering) and CT-TAS (Test Automation Strategy). They overlap, but they answer different questions.
CT-TAE — how to build it
CT-TAE is the hands-on engineering certification. It covers the architecture of automation frameworks, choosing tools, integrating with CI/CD pipelines and writing maintainable test code. If you write or review automation code, this is the certification for you.
CT-TAS — when and why to build it
CT-TAS sits one level up: how do you decide what to automate, how do you measure ROI, how do you avoid automating yourself into a corner? It's aimed at test leads, automation architects and engineering managers who own the strategy, not the framework code.
In practice
Most senior automation engineers eventually take both — CT-TAE first to prove the engineering, CT-TAS later to prove the judgement.
