DIN 69905 (EN)
StandardOfficial standard for requirements and specifications documents in engineering
Architecture
flowchart TD A[Project requirement] --> B{Requirements document according to DIN 69905} B --> C[Specifications document according to DIN 69905] C --> D[Technical specification] D --> E[Implementation] E --> F[Acceptance test] subgraph DIN 69905 Documents B C end subgraph Project phases A D E F end