Compliance & Audit Management Business Logic¶

The compliance and audit management system provides comprehensive tracking, monitoring, and security controls within the Stratpoint Timesheet Application. It ensures regulatory compliance, maintains detailed audit trails, and implements robust security measures essential for enterprise governance and risk management.

How Compliance and Audit Works¶

For Compliance Officers: 1. Monitor system access and user activity patterns 2. Review comprehensive audit trails and change histories 3. Generate compliance reports for regulatory requirements 4. Track data access and modification patterns 5. Ensure adherence to data privacy and security policies

For System Administrators: 1. Manage user permissions and access controls 2. Monitor system security and unauthorized access attempts 3. Maintain audit logs and historical data retention 4. Implement data encryption and protection measures 5. Generate security reports and incident analysis

For Management: 1. Review compliance dashboard and risk indicators 2. Access audit reports for governance requirements 3. Monitor user behavior and system integrity 4. Ensure regulatory compliance across operations 5. Make decisions based on audit findings and risk assessment

System Features: - Comprehensive audit logging of all system changes - Role-based permission system with granular access control - Data encryption for sensitive financial information - API access monitoring and usage analytics - Project change tracking with complete history - Automated compliance reporting and alerting

Audit Trail Architecture¶

Complete Change Tracking¶

flowchart TD
    A[User Action] --> B[Permission Check]
    B --> C{Authorized?}
    C -->|Yes| D[Execute Action]
    C -->|No| E[Log Access Denial]
    D --> F[Log Change Details]
    F --> G[Store Audit Record]
    G --> H[Update Analytics]
    E --> I[Security Alert]

Audit Log Categories¶

System Revisions: All data model changes with before/after values
Project Logs: Project-specific activities and modifications
Action Logs: User platform and action tracking
Access Logs: API and system access monitoring
Security Events: Authentication and authorization activities

Data Integrity Assurance¶

Immutable Logs: Audit records cannot be modified after creation
Complete History: Full before/after value tracking
User Attribution: Every change linked to specific user account
Timestamp Precision: Exact date/time recording for all activities
Change Context: Detailed description of what changed and why

Permission-Based Security¶

Access Control Framework¶

The system implements a granular permission-based security model:

Permission Structure: - Numeric Permission IDs: Specific permissions assigned to users - Comma-Separated Storage: Permissions stored as comma-delimited strings - Permission Validation: Real-time authorization checking - Access Denial Logging: Failed access attempts tracked and recorded

Key Security Permissions¶

Permission 60: See Hourly Cost (financial data access)
Permission 95: Financial data access (cost and rate information)
Permission 103: Timelog approval authority
Permission 146: Timelog analytics access
Permission 159: API analytics and system monitoring

Role-Based Access Control¶

Administrative Roles: Full system access with audit oversight
Financial Roles: Access to cost and financial data
Managerial Roles: Team and project oversight capabilities
User Roles: Limited access to own data and assigned projects

Security Validation Process¶

// Permission checking algorithm
if (!hasPermission($user, $requiredPermission)) {
    return respondAccessNotAllowed($resourceType);
}

Data Encryption and Protection¶

Sensitive Data Encryption¶

The system protects sensitive financial and personal information through:

Encrypted Fields: - Hourly Costs: Employee cost information encrypted at rest - Salary Data: Compensation information with encryption - Financial Rates: Billing rates and cost markups protected - Personal Information: Sensitive employee data secured

Encryption Implementation¶

EncryptableTrait: Automatic encryption/decryption for model fields
Database Encryption: Sensitive fields encrypted before storage
Access Control: Encrypted data only accessible to authorized users
Key Management: Secure encryption key handling and rotation

Data Privacy Controls¶

Field-Level Security: Granular control over sensitive data access
Conditional Display: Data visibility based on user permissions
Audit Trail: All access to encrypted data logged and monitored
Compliance Support: Encryption meets regulatory requirements

Comprehensive Audit Logging¶

System Revision Tracking¶

The revisions table captures all system changes:

Tracked Information: - Record Type: What type of data was changed - Record ID: Specific record that was modified - User ID: Who made the change - Field Name: Which field was modified - Old Value: Previous value before change - New Value: New value after change - Action Context: Description of the action taken

Project Activity Logging¶

Project logs provide detailed project change history:

Project Log Features: - Change Documentation: Complete before/after value tracking - User Attribution: Who made each change and when - Mass Input Tracking: Bulk operations and batch changes - Activity Classification: Add, edit, delete, and other operations - Value Resolution: Foreign key values resolved to readable names

Action and Access Monitoring¶

Platform Tracking: Web, mobile, API access monitoring
Usage Analytics: Weekly and monthly activity summaries
API Monitoring: Detailed API call logging and analysis
Performance Tracking: System usage patterns and optimization

Compliance Reporting¶

Regulatory Compliance Features¶

Data Retention: Configurable retention policies for audit data
Export Capabilities: Audit data export for external compliance systems
Report Generation: Automated compliance reports and dashboards
Alerting System: Real-time notifications for compliance violations

Audit Report Types¶

User Activity Reports: Individual and team activity analysis
System Change Reports: Comprehensive change tracking
Access Reports: Permission usage and access pattern analysis
Security Reports: Failed access attempts and security incidents
Data Integrity Reports: System health and data quality monitoring

Compliance Dashboard Features¶

flowchart LR
    A[System Access Patterns] --> B[Authorized: 85%]
    A --> C[Denied: 10%]
    A --> D[Errors: 5%]

    style A fill:#374151,stroke:#4b5563,color:#fff
    style B fill:#10b981,stroke:#059669,color:#fff
    style C fill:#f59e0b,stroke:#d97706,color:#fff
    style D fill:#ef4444,stroke:#dc2626,color:#fff

Data Privacy and Security¶

Privacy Protection Measures¶

Personal Data Encryption: Sensitive employee information protected
Access Logging: All personal data access tracked and monitored
Data Minimization: Only necessary data collected and stored
Consent Management: User consent tracking and management
Right to Deletion: Data removal capabilities for compliance

Security Monitoring¶

Intrusion Detection: Unauthorized access attempt monitoring
Anomaly Detection: Unusual activity pattern identification
Security Alerting: Real-time notifications for security events
Incident Response: Automated response to security violations

Risk Management¶

Risk Assessment: Regular evaluation of security risks
Vulnerability Monitoring: System weakness identification and remediation
Threat Intelligence: External threat monitoring and protection
Business Continuity: Disaster recovery and data protection planning

System Integrity Monitoring¶

Change Management Controls¶

Approval Workflows: Multi-level approval for critical changes
Change Documentation: Comprehensive documentation requirements
Rollback Capabilities: Ability to reverse unauthorized changes
Version Control: Complete history of system configurations

Quality Assurance¶

Data Validation: Real-time data quality monitoring
Consistency Checks: Cross-system data synchronization validation
Error Detection: Automatic identification of data anomalies
Correction Tracking: Documentation of all data corrections

Performance and Availability¶

System Monitoring: Real-time system health and performance
Uptime Tracking: Availability monitoring and reporting
Performance Analytics: System optimization and capacity planning
Service Level Management: SLA compliance monitoring and reporting

Technical Implementation Details¶

For developers and system administrators

Core API Endpoints¶

Audit Log Management:

// Audit log retrieval
GET /api/v2/audit/revisions
{
  "limit": 100,
  "revisionable_type": "User",
  "user_id": 123,
  "date_range": {
    "start": "2024-01-01",
    "end": "2024-06-30"
  }
}

// Project activity logs
POST /api/v2/projects/logs
{
  "project_id": 123,
  "date": "2024-06-01",
  "activity_type": "update"
}

Access Control:

// Permission validation
POST /api/v2/auth/validate-permission
{
  "user_id": 123,
  "permission_id": 60,
  "resource_type": "financial_data"
}

// Access log monitoring
GET /api/v2/security/access-logs
{
  "app_name": "timesheetweb",
  "start_date": "2024-06-01",
  "end_date": "2024-06-30"
}

Database Schema¶

Audit Log Model (Revisions):

// Core audit trail structure
'revisionable_type' => 'Model class name (required)',
'revisionable_id' => 'Record ID being audited (required)',
'user_id' => 'User making the change (required)',
'key' => 'Field name that changed (required)',
'old_value' => 'Previous value (nullable)',
'new_value' => 'New value (nullable)',
'task' => 'Action type/context (nullable)',
'description' => 'Human-readable description (nullable)',
'created_at' => 'Timestamp of change (auto)',
'updated_at' => 'Last modification (auto)'

Project Log Model:

// Project-specific audit trail
'doneByUser_id' => 'User who performed action (required)',
'project_id' => 'Project being modified (required)',
'description' => 'Action description (required)',
'changedValues' => 'Before/after values JSON (nullable)',
'massInputs' => 'Bulk operation data JSON (nullable)',
'created_at' => 'Action timestamp (auto)',
'updated_at' => 'Last update (auto)'

API Access Log Model:

// API access monitoring
'appName' => 'Application identifier (required)',
'url' => 'Endpoint accessed (required)',
'method' => 'HTTP method (required)',
'ip' => 'Client IP address (required)',
'created_at' => 'Access timestamp (auto)'

Permission System Implementation¶

Permission Validation Algorithm:

// Core permission checking function
function hasPermission($user, $permId)
{
    // Permissions stored as comma-separated string
    // Format: ",1,2,3,60,103,"
    return $user['isActive'] &&
           strpos($user['permission_ids'], ',' . $permId . ',') !== false;
}

// Cost visibility permission
function canSeeCosts($user)
{
    // Permission 60: See_Hourly_Cost
    return hasPermission($user, 60);
}

// Access denial response
function respondAccessNotAllowed($title)
{
    return response()->json([
        'header' => [
            'status' => 403,
            'title' => $title,
            'description' => 'Access not allowed'
        ],
        'body' => []
    ], 403);
}

Encryption Framework¶

Sensitive Data Encryption:

// EncryptableTrait implementation
trait EncryptableTrait
{
    protected $encryptable = [
        'currentHourlyCost',
        'hourlySalary',
        'hourlyStandardCost'
    ];

    // Automatic encryption on save
    public function setAttribute($key, $value)
    {
        if (in_array($key, $this->encryptable)) {
            $value = encrypt($value);
        }

        return parent::setAttribute($key, $value);
    }

    // Automatic decryption on retrieval
    public function getAttribute($key)
    {
        $value = parent::getAttribute($key);

        if (in_array($key, $this->encryptable) && $value) {
            $value = decrypt($value);
        }

        return $value;
    }
}

Audit Trail Generation¶

Automatic Change Tracking:

class {

href="#__codelineno-8-1">// Model event listeners for audit trail AuditableModel extends BaseModel pan> public static function boot() { parent::boot(); static::updated(function ($model) { foreach ($model->getDirty() as $field => $newValue) { $oldValue = $model->getOriginal($field); AuditLog::create([ 'revisionable_type' => get_class($model), 'revisionable_id' => $model->id, 'user_id' => auth()->id(), 'key' => $field, 'old_value' => $oldValue, 'new_value' => $newValue, 'task' => 'updated', 'description' => "Updated {$field}" ]); } }); } }

Project Activity Logging¶

Project Change Documentation:

// Project log creation with change tracking
public function logProjectChange($projectId, $description, $changedValues = null)
{
    $logData = [
        'doneByUser_id' => auth()->id(),
        'project_id' => $projectId,
        'description' => $description
    ];

    if ($changedValues) {
        $logData['changedValues'] = json_encode([
            'old' => $changedValues['old'],
            'new' => $changedValues['new']
        ]);
    }

    ProjectLog::create($logData);
}

// Display value resolution for audit trails
private function resolveDisplayValues($field, $value)
{
    $fieldMappings = [
        'user_id' => 'User',
        'client_id' => 'Client',
        'project_id' => 'Project'
    ];

    if (isset($fieldMappings[$field]) && $value) {
        $model = "App\\Models\\{$fieldMappings[$field]}";
        return $model::find($value)->name ?? $value;
    }

    return $value;
}

Performance Optimization¶

Query Optimization for Audit Data:

-- Optimized indexes for audit queries
CREATE INDEX idx_revisions_user_date
ON revisions (user_id, created_at);

CREATE INDEX idx_revisions_type_id
ON revisions (revisionable_type, revisionable_id);

CREATE INDEX idx_project_logs_project_date
ON project_logs (project_id, created_at DESC);

CREATE INDEX idx_api_access_app_date
ON api_access_logs (appName, created_at);

Caching Strategy: - Audit summary data cached for 1 hour - Permission lookups cached per session - Access patterns cached for performance analytics - Historical audit data pre-aggregated for reporting

Compliance Reporting Engine¶

Automated Report Generation:

// Compliance report generation
class ComplianceReportGenerator
{
    public function generateAuditReport($startDate, $endDate, $reportType)
    {
        switch ($reportType) {
            case 'user_activity':
                return $this->generateUserActivityReport($startDate, $endDate);
            case 'data_changes':
                return $this->generateDataChangeReport($startDate, $endDate);
            case 'access_violations':
                return $this->generateAccessViolationReport($startDate, $endDate);
            case 'security_incidents':
                return $this->generateSecurityIncidentReport($startDate, $endDate);
        }
    }

    private function generateUserActivityReport($start, $end)
    {
        return AuditLog::whereBetween('created_at', [$start, $end])
            ->with(['user'])
            ->groupBy('user_id')
            ->selectRaw('user_id, COUNT(*) as activity_count')
            ->get();
    }
}

Security Event Monitoring¶

Real-time Security Monitoring:

// Security event detection and alerting
class SecurityMonitor
{
    public function monitorFailedAccess($userId, $resource, $permission)
    {
        $violations = $this->getRecentViolations($userId);

        if ($violations >= config('security.max_violations')) {
            $this->triggerSecurityAlert($userId, $resource);
            $this->lockUserAccount($userId);
        }

        $this->logSecurityEvent($userId, $resource, $permission);
    }

    private function triggerSecurityAlert($userId, $resource)
    {
        // Send real-time security alert
        event(new SecurityViolationEvent($userId, $resource));
    }
}

This comprehensive compliance and audit management system provides enterprise-level security, complete audit trails, and regulatory compliance capabilities essential for maintaining data integrity and meeting governance requirements in professional services organizations.