| Primary Focus | How to build it without breaking the system architecture or failing the requirements. | How to validate it effectively within project timelines and resource limits. |
| What "Probability" Means | The likelihood that a technical design choice or code implementation will fail or cause bugs. | The likelihood that a bug will escape into production undetected by the current QA process. |
| What "Severity" Means | Technical blast radius (e.g., system crashes, security breaches, database corruption). | End-user and business impact (e.g., operational downtime, financial loss, user frustration). |
| The Mitigation Strategy | Code-level fixes: architectural changes, adding redundancy, data validation layers, or error handling. | Test-level fixes: altering test priority, adding automated integration regressions, or scheduling exploratory cycles. |