Simulated Audit Trails for Training and Testing
Generate complete audit workpaper trails with ISA, PCAOB, and IIA methodologies. Configurable deficiencies, YAML-driven state machines, and 6 export formats.
Three Audit Methodologies
YAML-driven finite state machines model each framework's workflow, documentation, and evidence requirements
ISA (International Standards on Auditing)
IAASB framework with risk assessment, substantive procedures, and documentation per ISA 230/500/700
PCAOB (AS 2201 / AS 1301)
US public company audit standards with ICFR evaluation, material weakness identification, and CAM reporting
IIA (International Professional Practices Framework)
Internal audit standards with risk-based planning, engagement execution, and follow-up procedures
Audit Scenario Packs
Pre-built scenarios with known deficiencies for training and software testing
SOX Material Weakness
Generates audit trails with embedded material weaknesses in revenue recognition, inventory valuation, and financial close processes. Includes management remediation timelines and auditor walkthroughs.
IT General Control Breakdown
Simulates access control failures, change management gaps, and data integrity issues across ERP, database, and network layers. Maps to COBIT 2019 control objectives.
Revenue Cutoff Misstatement
Creates scenarios where revenue is recorded in the wrong period — bill-and-hold, channel stuffing, and side agreements that require substantive testing to detect.
Related-Party Concealment
Hidden related-party transactions with entity layering, nominee structures, and circular cash flows that test auditor skepticism and analytical procedures.
6 Export Formats
From structured data to rendered workpapers
JSON-LD
Linked data format with audit ontology for semantic reasoning and knowledge graph integration.
CSV / Excel
Flat table export compatible with audit analytics tools — ACL, IDEA, and Excel-based workpaper review.
Parquet
Columnar format for large-scale audit data analysis with Spark, DuckDB, or pandas.
XML (XBRL-adjacent)
Structured markup for integration with financial reporting systems and regulatory submission tools.
PDF Workpapers
Rendered audit workpapers with cross-references, tick marks, and evidence annotations.
YAML State Machine
Export the underlying FSM definition for custom workflow engines and audit management platforms.
Python SDK Example
import vynfi
client = vynfi.Client(api_key="vf_live_...")
# Generate an audit trail with embedded deficiencies
job = client.generate(
sector="audit",
module="audit_simulation",
methodology="pcaob",
scenario_pack="sox_material_weakness",
entities=50,
periods=4, # Quarterly
deficiency_rate=0.08, # 8% of controls have deficiencies
fsm_config="revenue_recognition_v2",
output_format="json_ld",
)
trail = job.result()
print(f"Workpapers generated: {trail.n_workpapers}")
print(f"Material weaknesses: {trail.n_material_weaknesses}")
print(f"Control deficiencies: {trail.n_deficiencies}")
# Export to multiple formats
job.download("audit_trail.json", format="json_ld")
job.download("workpapers/", format="pdf")Audit-ready data without confidentiality risk
Generate complete audit trails with embedded deficiencies in minutes. 5,000 free credits to start.