## MODIFIED Requirements
### Requirement: Specific Error Handling Instead of Silent Failures
Dataset operations SHALL use specific exception handling instead of broad `except Exception` handlers that silently return incorrect data.

#### Scenario: File operation failures are properly logged
- **GIVEN** a dataset operation that encounters a file read error
- **WHEN** the operation fails due to file access issues
- **THEN** the error SHALL be logged with appropriate context
- **AND** a meaningful exception SHALL be raised instead of returning 0

#### Scenario: Path validation works for cloud storage
- **GIVEN** S3 or GCS paths in dataset operations
- **WHEN** path normalization is performed
- **THEN** the operation SHALL work correctly with cloud storage paths
- **AND** shall not use `os.path.abspath()` which only works for local filesystems

### Requirement: Consistent Error Messages and Context
Dataset operations SHALL provide consistent, actionable error messages with proper context.

#### Scenario: Error messages include actionable information
- **GIVEN** a failed dataset operation
- **WHEN** an error occurs
- **THEN** the error message SHALL include:
  - Operation that failed
  - File or path involved
  - Specific reason for failure
  - Suggested remediation steps when applicable

## ADDED Requirements
### Requirement: Standardized Error Handling Patterns
The datasets module SHALL implement standardized error handling patterns across all operations.

#### Scenario: Consistent exception types
- **GIVEN** dataset operations across different backends
- **WHEN** errors occur
- **THEN** consistent exception types SHALL be used
- **AND** proper exception hierarchy SHALL be maintained

### Requirement: Cloud Filesystem Path Normalization
Path normalization SHALL work correctly with both local and cloud filesystems.

#### Scenario: Cloud path normalization
- **GIVEN** S3 paths like "s3://bucket/path/file.parquet"
- **WHEN** path normalization is performed
- **THEN** the path SHALL remain unchanged
- **AND** operations SHALL work correctly with the normalized path

#### Scenario: Local path normalization
- **GIVEN** local paths like "/path/to/file.parquet" or "relative/path/file.parquet"
- **WHEN** path normalization is performed
- **THEN** relative paths SHALL be converted to absolute paths
- **AND** operations SHALL work correctly with the normalized path
