---

name: "data-lineage-tracker" description: "Track data origin, transformations, and flow through construction systems. Essential for audit trails, compliance, and debugging data issues." homepage: "https://datadrivenconstruction.io" metadata: {"openclaw": {"emoji": "✔️", "os": ["darwin", "linux", "win32"], "homepage": "https://datadrivenconstruction.io", "requires": {"bins": ["python3"]}}}

---

Data Lineage Tracker for Construction

Overview

Track the origin, transformations, and flow of construction data through systems. Provides audit trails for compliance, helps debug data issues, and ensures data governance.

Business Case

Construction projects require data accountability:

• Audit Compliance: Know where every number came from

• Issue Resolution: Trace data problems to their source

• Change Impact: Understand what downstream systems are affected

• Regulatory Requirements: Maintain data provenance for legal/insurance

Technical Implementation

``python from dataclasses import dataclass, field from typing import List, Dict, Any, Optional, Set from datetime import datetime from enum import Enum import json import hashlib import uuid class TransformationType(Enum): EXTRACT = "extract" TRANSFORM = "transform" LOAD = "load" AGGREGATE = "aggregate" JOIN = "join" FILTER = "filter" CALCULATE = "calculate" MANUAL_EDIT = "manual_edit" IMPORT = "import" EXPORT = "export" @dataclass class DataSource: id: str name: str system: str location: str owner: str created_at: datetime @dataclass class TransformationStep: id: str transformation_type: TransformationType description: str input_entities: List[str] output_entities: List[str] logic: str # SQL, Python, or description performed_by: str # user or system performed_at: datetime parameters: Dict[str, Any] = field(default_factory=dict) @dataclass class DataEntity: id: str name: str source_id: str entity_type: str # table, file, field, record created_at: datetime version: int = 1 checksum: Optional[str] = None parent_entities: List[str] = field(default_factory=list) metadata: Dict[str, Any] = field(default_factory=dict) @dataclass class LineageRecord: id: str entity_id: str transformation_id: str upstream_entities: List[str] downstream_entities: List[str] recorded_at: datetime class ConstructionDataLineageTracker: """Track data lineage for construction data flows.""" def __init__(self, project_id: str): self.project_id = project_id self.sources: Dict[str, DataSource] = {} self.entities: Dict[str, DataEntity] = {} self.transformations: Dict[str, TransformationStep] = {} self.lineage_records: List[LineageRecord] = [] def register_source(self, name: str, system: str, location: str, owner: str) -> DataSource: """Register a new data source.""" source = DataSource( id=f"SRC-{uuid.uuid4().hex[:8]}", name=name, system=system, location=location, owner=owner, created_at=datetime.now() ) self.sources[source.id] = source return source def register_entity(self, name: str, source_id: str, entity_type: str, parent_entities: List[str] = None, metadata: Dict = None) -> DataEntity: """Register a data entity (table, file, field).""" entity = DataEntity( id=f"ENT-{uuid.uuid4().hex[:8]}", name=name, source_id=source_id, entity_type=entity_type, created_at=datetime.now(), parent_entities=parent_entities or [], metadata=metadata or {} ) self.entities[entity.id] = entity return entity def calculate_checksum(self, data: Any) -> str: """Calculate checksum for data verification.""" if isinstance(data, str): content = data else: content = json.dumps(data, sort_keys=True, default=str) return hashlib.sha256(content.encode()).hexdigest()[:16] def record_transformation(self, transformation_type: TransformationType, description: str, input_entities: List[str], output_entities: List[str], logic: str, performed_by: str, parameters: Dict = None) -> TransformationStep: """Record a data transformation.""" transformation = TransformationStep( id=f"TRF-{uuid.uuid4().hex[:8]}", transformation_type=transformation_type, description=description, input_entities=input_entities, output_entities=output_entities, logic=logic, performed_by=performed_by, performed_at=datetime.now(), parameters=parameters or {} ) self.transformations[transformation.id] = transformation # Create lineage records for output_id in output_entities: record = LineageRecord( id=f"LIN-{uuid.uuid4().hex[:8]}", entity_id=output_id, transformation_id=transformation.id, upstream_entities=input_entities, downstream_entities=[], recorded_at=datetime.now() ) self.lineage_records.append(record) # Update downstream references for input entities for input_id in input_entities: for existing_record in self.lineage_records: if existing_record.entity_id == input_id: existing_record.downstream_entities.append(output_id) return transformation def trace_upstream(self, entity_id: str, depth: int = None) -> List[Dict]: """Trace all upstream sources of an entity.""" visited = set() lineage = [] def trace(eid: str, current_depth: int): if eid in visited: return if depth is not None and current_depth > depth: return visited.add(eid) entity = self.entities.get(eid) if not entity: return # Find transformations that produced this entity for record in self.lineage_records: if record.entity_id == eid: transformation = self.transformations.get(record.transformation_id) if transformation: lineage.append({ 'entity': entity.name, 'entity_id': eid, 'depth': current_depth, 'transformation': transformation.description, 'transformation_type': transformation.transformation_type.value, 'performed_at': transformation.performed_at.isoformat(), 'performed_by': transformation.performed_by, 'upstream': record.upstream_entities }) for upstream_id in record.upstream_entities: trace(upstream_id, current_depth + 1) trace(entity_id, 0) return sorted(lineage, key=lambda x: x['depth']) def trace_downstream(self, entity_id: str, depth: int = None) -> List[Dict]: """Trace all downstream dependencies of an entity.""" visited = set() dependencies = [] def trace(eid: str, current_depth: int): if eid in visited: return if depth is not None and current_depth > depth: return visited.add(eid) entity = self.entities.get(eid) if not entity: return # Find entities that use this entity for record in self.lineage_records: if eid in record.upstream_entities: transformation = self.transformations.get(record.transformation_id) if transformation: dependencies.append({ 'entity': self.entities[record.entity_id].name if record.entity_id in self.entities else record.entity_id, 'entity_id': record.entity_id, 'depth': current_depth, 'transformation': transformation.description, 'transformation_type': transformation.transformation_type.value }) trace(record.entity_id, current_depth + 1) trace(entity_id, 0) return sorted(dependencies, key=lambda x: x['depth']) def get_entity_history(self, entity_id: str) -> List[Dict]: """Get complete history of changes to an entity.""" history = [] for record in self.lineage_records: if record.entity_id == entity_id: transformation = self.transformations.get(record.transformation_id) if transformation: history.append({ 'timestamp': transformation.performed_at.isoformat(), 'action': transformation.transformation_type.value, 'description': transformation.description, 'performed_by': transformation.performed_by, 'inputs': [ self.entities[eid].name if eid in self.entities else eid for eid in record.upstream_entities ] }) return sorted(history, key=lambda x: x['timestamp']) def impact_analysis(self, entity_id: str) -> Dict: """Analyze impact of changes to an entity.""" downstream = self.trace_downstream(entity_id) impact = { 'entity': self.entities[entity_id].name if entity_id in self.entities else entity_id, 'total_affected': len(downstream), 'affected_by_depth': {}, 'affected_entities': downstream } for dep in downstream: depth = dep['depth'] impact['affected_by_depth'][depth] = impact['affected_by_depth'].get(depth, 0) + 1 return impact def validate_lineage(self) -> List[str]: """Validate lineage for completeness and consistency.""" issues = [] # Check for orphan entities (no source or transformation) for eid, entity in self.entities.items(): has_lineage = any(r.entity_id == eid for r in self.lineage_records) if not has_lineage and entity.entity_type != 'source': issues.append(f"Entity '{entity.name}' has no lineage record") # Check for broken references all_entity_ids = set(self.entities.keys()) for record in self.lineage_records: for upstream_id in record.upstream_entities: if upstream_id not in all_entity_ids: issues.append(f"Lineage references unknown entity: {upstream_id}") # Check for circular dependencies for eid in self.entities: upstream = set() to_check = [eid] while to_check: current = to_check.pop() if current in upstream: issues.append(f"Circular dependency detected involving entity: {self.entities[eid].name}") break upstream.add(current) for record in self.lineage_records: if record.entity_id == current: to_check.extend(record.upstream_entities) return issues def generate_lineage_graph(self, entity_id: str) -> str: """Generate Mermaid diagram of lineage.""" lines = ["`mermaid", "graph LR"] upstream = self.trace_upstream(entity_id, depth=5) downstream = self.trace_downstream(entity_id, depth=5) # Add nodes added_nodes = set() for item in upstream + downstream: node_id = item['entity_id'].replace('-', '_') if node_id not in added_nodes: entity = self.entities.get(item['entity_id']) name = entity.name if entity else item['entity_id'] lines.append(f" {node_id}[{name}]") added_nodes.add(node_id) # Add target node target_node = entity_id.replace('-', '_') if target_node not in added_nodes: entity = self.entities.get(entity_id) name = entity.name if entity else entity_id lines.append(f" {target_node}[{name}]:::target") # Add edges for item in upstream: for upstream_id in item.get('upstream', []): from_node = upstream_id.replace('-', '_') to_node = item['entity_id'].replace('-', '_') lines.append(f" {from_node} --> {to_node}") for item in downstream: from_node = entity_id.replace('-', '_') to_node = item['entity_id'].replace('-', '_') if to_node != from_node: lines.append(f" {from_node} --> {to_node}") lines.append(" classDef target fill:#f96") lines.append("`") return "\n".join(lines) def export_lineage(self) -> Dict: """Export complete lineage data.""" return { 'project_id': self.project_id, 'exported_at': datetime.now().isoformat(), 'sources': {k: { 'id': v.id, 'name': v.name, 'system': v.system, 'location': v.location, 'owner': v.owner } for k, v in self.sources.items()}, 'entities': {k: { 'id': v.id, 'name': v.name, 'source_id': v.source_id, 'entity_type': v.entity_type, 'parent_entities': v.parent_entities } for k, v in self.entities.items()}, 'transformations': {k: { 'id': v.id, 'type': v.transformation_type.value, 'description': v.description, 'input_entities': v.input_entities, 'output_entities': v.output_entities, 'performed_by': v.performed_by, 'performed_at': v.performed_at.isoformat() } for k, v in self.transformations.items()}, 'lineage_records': [{ 'id': r.id, 'entity_id': r.entity_id, 'transformation_id': r.transformation_id, 'upstream_entities': r.upstream_entities } for r in self.lineage_records] } def generate_report(self) -> str: """Generate lineage report.""" lines = [f"# Data Lineage Report: {self.project_id}", ""] lines.append(f"Generated: {datetime.now().strftime('%Y-%m-%d %H:%M')}") lines.append(f"Sources: {len(self.sources)}") lines.append(f"Entities: {len(self.entities)}") lines.append(f"Transformations: {len(self.transformations)}") lines.append("") # Sources lines.append("## Data Sources") for source in self.sources.values(): lines.append(f"- {source.name} ({source.system})") lines.append(f" - Location: {source.location}") lines.append(f" - Owner: {source.owner}") lines.append("") # Validation issues = self.validate_lineage() if issues: lines.append("## Lineage Issues") for issue in issues: lines.append(f"- ⚠️ {issue}") lines.append("") # Transformation summary lines.append("## Transformation Summary") type_counts = {} for t in self.transformations.values(): type_counts[t.transformation_type.value] = type_counts.get(t.transformation_type.value, 0) + 1 for t_type, count in sorted(type_counts.items()): lines.append(f"- {t_type}: {count}") return "\n".join(lines) `

Quick Start

`python

Initialize tracker

tracker = ConstructionDataLineageTracker("PROJECT-001")

Register sources

procore = tracker.register_source("Procore", "SaaS", "cloud", "PM Team") sage = tracker.register_source("Sage 300", "Database", "on-prem", "Finance")

Register entities

budget = tracker.register_entity("Project Budget", procore.id, "table") costs = tracker.register_entity("Job Costs", sage.id, "table") report = tracker.register_entity("Cost Variance Report", procore.id, "file")

Record transformation

tracker.record_transformation( transformation_type=TransformationType.JOIN, description="Join budget and actual costs for variance calculation", input_entities=[budget.id, costs.id], output_entities=[report.id], logic="SELECT b.*, c.actual, (b.budget - c.actual) as variance FROM budget b JOIN costs c ON b.cost_code = c.cost_code", performed_by="ETL Pipeline" )

Trace lineage

upstream = tracker.trace_upstream(report.id) print("Upstream lineage:", upstream)

Generate graph

print(tracker.generate_lineage_graph(report.id))

Export for audit

lineage_data = tracker.export_lineage() ``

Resources

• Data Governance: DAMA DMBOK lineage guidelines

• Audit Requirements: SOX, ISO compliance