Selecting what to build with.
WHAT TO ASSESS
What your application is built with What your team can write What the tool can actually test How it integrates with your pipeline How stable it is
WHY TEAM SKILL MATTERS MOST
A tool nobody can maintain produces a suite that decays.
WHAT TO PREFER
The language your developers already use.
WHY
Tests then get maintained by whoever changes the code.
WHAT BROWSER AUTOMATION TOOLS DIFFER IN
How they interact with the browser Waiting behaviour Debugging support Speed and reliability
WHAT NEWER TOOLS IMPROVED
Automatic waiting, which removed the largest source of flakiness.
WHAT TO CHECK
Support for the browsers you must cover Ability to run headless Parallel execution Reporting
WHAT TO AVOID
Record-and-playback tools producing unmaintainable output Tools requiring a separate skill nobody has Proprietary tools with licence costs scaling badly
WHY RECORD-AND-PLAYBACK FAILS
The output is fragile and cannot be structured.
WHAT TO TRIAL
Automating one real scenario, end to end, in each candidate.
WHAT TO JUDGE IT ON
How it handles failure, and how readable the result is.