Test CoE

Định nghĩa

Centralized team chuyên về testing tools, framework, training — serve nhiều product team.

Hai mô hình

• Centralized CoE — tất cả QA report về CoE.
• Federated CoE — QA embed product team, CoE setting standard.

Federated model phổ biến hơn (modern)

        Test CoE
       (10 people)
            │
   ┌────────┼────────┐
   ▼        ▼        ▼
 Squad A  Squad B  Squad C
 (2 QA)   (3 QA)   (2 QA)

CoE charter

• Standardize test framework (Cypress version, Appium version).
• Build shared library (PageObject helpers, test data factories).
• Training (onboarding, advanced topic).
• Tool evaluation & adoption.
• Cross-team retrospective + best practice share.

Pros

• Avoid duplication (mỗi squad không tự xây Appium framework).
• Standard means easier reuse.
• Career path cho QA senior (CoE engineer track).

Cons

• Bureaucracy nếu over-centralized.
• Disconnect from product specific.
• CoE talent risk khi key person leave.

VN context

FPT Software, KMS, NashTech có CoE 50-200 engineer. Local-only startup thường skip CoE — không đủ scale.

When to build CoE

• 5+ product team, 50+ QA total.
• Repeated reinvention "we built our framework too".
• Tool license management need centralize.