Test material
Known-answer datasets, synthetic corpora and authorized anonymized records with a documented scope.
Evidence-state model
Each stage should remain distinguishable and connected to its inputs. This makes it possible to review what the source contained, what the parser produced and what later analysis inferred.
- Source record — an item as represented in an acquired or exported source.
- Parsed artifact — a deterministic structured representation with parser context.
- Recovered or reconstructed item — information derived from incomplete or fragmented structures, with method and uncertainty recorded.
- Analytical correlation — a relationship formed by comparing multiple artifacts.
- AI-assisted observation — generated text or analysis support, identified as generated and linked to records where practical.
- Practitioner-reviewed finding — a technical conclusion recorded after review of supporting material.
Timeline normalization that preserves original time
A normalized timeline is an analytical view. It should retain the original stored value, source field, unit, known timezone or offset, conversion logic, normalized analytical timestamp and event meaning. The source timestamp remains available alongside the normalized view.
SOURCE VALUEStored value + source field
→CONVERSIONUnit + offset + rule
→ANALYTICAL VIEWNormalized time + context
Validation roadmap
Evaluation work is planned around repeatable inputs, source-level checks and version-aware parser behavior.
Parser coverage
Version-aware regression tests, schema compatibility checks and cross-checks against source records.
Error classes
Track false positives, false negatives, field interpretation errors and timestamp conversion errors.
Repeatability
Record processing versions, settings, transformation steps and known coverage gaps.
Public reference frameworks
Public guidance informing the engineering approach includes:
- NIST SP 800-101 Rev. 1 — Guidelines on Mobile Device Forensics
- NIST Computer Forensics Tool Testing (CFTT)
- SWGDE Best Practices for Mobile Device Forensic Analysis
- SWGDE Minimum Requirements for Testing Tools Used in Digital and Multimedia Forensics
- SWGDE Requirements for Report Writing in Digital and Multimedia Forensics
These public references provide context for the project’s engineering direction.