QAI CSTE study materials
QAI CSTE study resources

QAI CSTE case studies

QAI CSTE · Put your knowledge to work in context.

The QAI Certified Software Test Engineer (CSTE) is a professional credential offered through QAI's certification services. QAI, founded in 1995 by Steven Harris, is described as an independent third-party testing, inspection and certification organization serving the building industry, government and individuals. The CSTE credential is intended for software testing practitioners - test engineers, QA analysts, test leads and quality professionals - who want independent third-party validation of their testing knowledge and skills. The exam covers four equally weighted domains: Product Certification Services, Product Testing Services, Product Quality Inspection Services, and Code Evaluation / Accreditation Services. The QAI CSTE case studies are 5 cases and about 3,195 words.

1

Certification Decision Under Go-Live Pressure for a Payroll Module

A certification body is evaluating a payroll calculation module, release 5.1, for a certificate the client needs before a contractual go-live in 10 days. The certification scheme requires 100% traceability for high-risk requirements, zero open severity-1 defects, at least 85% statement coverage on every calculation module, and 30 consecutive days of field data from at least three customers.

696 words, about 3 min
2

Load-Test Verdict When Results Are Inconsistent and the Environment Differs

An independent test laboratory is running a load test for a retailer's checkout service. The service-level agreement states p95 response time of 800 ms or less and error rate of 0.5% or less at 5,000 concurrent users.

682 words, about 3 min
3

Sampling and Switching Rules in Software Module Incoming Inspection

A quality inspection service performs incoming inspection on software modules delivered by a supplier. Each monthly lot contains 40 modules.

638 words, about 3 min
4

Scope Extension for Static Analysis in an Accredited Test Laboratory

An accredited software test laboratory is seeking an extension of its ISO/IEC 17025 scope to include static analysis for MISRA C compliance. The assessment team reviews the validation file.

614 words, about 3 min
5

Surveillance After an Undisclosed Change Causes Duplicate Invoices

A certification body certified an invoicing product, version 5.0, eight months ago. The certificate is used in a public procurement contract.

565 words, about 3 min