Iteration 2 - DATA_ENGINEER
Sequence: 4
Timestamp: 2025-07-25 22:32:00

Prompt:
You are a senior database architect implementing schema modifications for iteration 2. Based on the OR expert's optimization requirements and mapping analysis, you will design and implement the complete database architecture following industry best practices.

YOUR RESPONSIBILITIES:
- Analyze OR expert's mapping evaluations and missing requirements
- Design schema adjustments following database normalization principles
- Implement complete data dictionary with business-oriented descriptions
- Manage business configuration logic parameters (scalar values and formulas not suitable for tables)
- Maintain business realism by preserving relevant non-optimization tables
- Follow industry database design standards and naming conventions
- Ensure each table will store between 3 and 10 data rows for realistic optimization scenarios
- Apply the 3-row minimum rule - if optimization information is insufficient to generate at least 3 meaningful rows for a table, move that information to business_configuration_logic.json instead.


BUSINESS CONFIGURATION LOGIC DESIGN:
- Create business_configuration_logic.json for business parameters
- For scalar parameters: Use "sample_value" as templates for triple expert
- For business logic formulas: Use actual formula expressions (not "sample_value")
- Support different configuration_types:
  - "scalar_parameter": Single business values with "sample_value" (resources, limits, thresholds)
  - "business_logic_formula": Actual calculation formulas using real expressions
  - "business_metric": Performance evaluation metrics with "sample_value"
- Triple expert will later provide realistic values for scalar parameters only
- Formulas should be actual business logic expressions, not sample values


CRITICAL: Respond with ONLY a valid JSON object. No explanations, no markdown, no extra text.

OR EXPERT ANALYSIS (iteration 2):
{
  "database_id": "theme_gallery",
  "iteration": 1,
  "business_context": "A theme gallery aims to maximize its annual revenue from exhibitions by optimizing the allocation of artists to exhibitions based on their popularity and ticket prices, while respecting constraints on artist availability and exhibition capacity.",
  "optimization_problem_description": "The gallery needs to decide how many exhibitions each artist should participate in to maximize total revenue, considering ticket prices and expected attendance, while ensuring no artist is overbooked and each exhibition has a minimum number of artists.",
  "optimization_formulation": {
    "objective": "maximize \u2211(Ticket_Price_j * Attendance_ij * x_ij) where x_ij is the number of exhibitions artist i participates in in year j",
    "decision_variables": "x_ij: number of exhibitions artist i participates in in year j (integer)",
    "constraints": "\u2211(x_ij) \u2264 Max_Exhibitions_Per_Artist_i for all i, \u2211(x_ij) \u2265 Min_Artists_Per_Exhibition_j for all j, x_ij \u2265 0 for all i, j"
  },
  "current_optimization_to_schema_mapping": {
    "objective_coefficients": {
      "Ticket_Price_j": {
        "currently_mapped_to": "missing",
        "mapping_adequacy": "missing",
        "description": "Ticket price for exhibition j"
      },
      "Attendance_ij": {
        "currently_mapped_to": "missing",
        "mapping_adequacy": "missing",
        "description": "Expected attendance for artist i in exhibition j"
      }
    },
    "constraint_bounds": {
      "Max_Exhibitions_Per_Artist_i": {
        "currently_mapped_to": "artist_exhibition_limits.Max_Exhibitions",
        "mapping_adequacy": "good",
        "description": "Maximum number of exhibitions artist i can participate in"
      },
      "Min_Artists_Per_Exhibition_j": {
        "currently_mapped_to": "exhibition_artist_requirements.Min_Artists",
        "mapping_adequacy": "good",
        "description": "Minimum number of artists required for exhibition j"
      }
    },
    "decision_variables": {
      "x_ij": {
        "currently_mapped_to": "artist_exhibition_assignments.Num_Exhibitions",
        "mapping_adequacy": "good",
        "description": "Number of exhibitions artist i participates in in year j",
        "variable_type": "integer"
      }
    }
  },
  "missing_optimization_requirements": [
    "Ticket_Price_j",
    "Attendance_ij"
  ],
  "iteration_status": {
    "complete": false,
    "confidence": "medium",
    "next_focus": "Define and map missing objective coefficients (Ticket_Price_j and Attendance_ij)"
  }
}


CURRENT DATABASE SCHEMA:
```sql
-- Iteration 1 Database Schema
-- Objective: Schema changes include creating tables for missing optimization requirements (Max_Exhibitions_Per_Artist, Min_Artists_Per_Exhibition, and decision variables x_ij). Business configuration logic updated with scalar parameters and formulas for optimization constraints and calculations.

CREATE TABLE artist_exhibition_limits (
  Artist_ID INTEGER,
  Max_Exhibitions INTEGER
);

CREATE TABLE exhibition_artist_requirements (
  Exhibition_ID INTEGER,
  Min_Artists INTEGER
);

CREATE TABLE artist_exhibition_assignments (
  Artist_ID INTEGER,
  Exhibition_ID INTEGER,
  Num_Exhibitions INTEGER
);


```


CURRENT DATA DICTIONARY:
{
  "tables": {
    "artist_exhibition_limits": {
      "business_purpose": "Maximum number of exhibitions each artist can participate in",
      "optimization_role": "constraint_bounds",
      "columns": {
        "Artist_ID": {
          "data_type": "INTEGER",
          "business_meaning": "Unique identifier for each artist",
          "optimization_purpose": "Index for artist constraints",
          "sample_values": [
            1,
            2,
            3
          ]
        },
        "Max_Exhibitions": {
          "data_type": "INTEGER",
          "business_meaning": "Maximum number of exhibitions the artist can participate in",
          "optimization_purpose": "Constraint bound for artist participation",
          "sample_values": [
            5,
            6,
            7
          ]
        }
      }
    },
    "exhibition_artist_requirements": {
      "business_purpose": "Minimum number of artists required for each exhibition",
      "optimization_role": "constraint_bounds",
      "columns": {
        "Exhibition_ID": {
          "data_type": "INTEGER",
          "business_meaning": "Unique identifier for each exhibition",
          "optimization_purpose": "Index for exhibition constraints",
          "sample_values": [
            1,
            2,
            3
          ]
        },
        "Min_Artists": {
          "data_type": "INTEGER",
          "business_meaning": "Minimum number of artists required for the exhibition",
          "optimization_purpose": "Constraint bound for exhibition requirements",
          "sample_values": [
            3,
            4,
            5
          ]
        }
      }
    },
    "artist_exhibition_assignments": {
      "business_purpose": "Number of exhibitions each artist participates in per year",
      "optimization_role": "decision_variables",
      "columns": {
        "Artist_ID": {
          "data_type": "INTEGER",
          "business_meaning": "Unique identifier for each artist",
          "optimization_purpose": "Index for artist participation",
          "sample_values": [
            1,
            2,
            3
          ]
        },
        "Exhibition_ID": {
          "data_type": "INTEGER",
          "business_meaning": "Unique identifier for each exhibition",
          "optimization_purpose": "Index for exhibition participation",
          "sample_values": [
            1,
            2,
            3
          ]
        },
        "Num_Exhibitions": {
          "data_type": "INTEGER",
          "business_meaning": "Number of exhibitions the artist participates in",
          "optimization_purpose": "Decision variable for optimization",
          "sample_values": [
            1,
            2,
            3
          ]
        }
      }
    }
  }
}


CURRENT BUSINESS CONFIGURATION LOGIC:
{
  "Max_Exhibitions_Per_Artist": {
    "sample_value": 5,
    "data_type": "INTEGER",
    "business_meaning": "Maximum number of exhibitions an artist can participate in",
    "optimization_role": "Constraint bound for artist participation",
    "configuration_type": "scalar_parameter"
  },
  "Min_Artists_Per_Exhibition": {
    "sample_value": 3,
    "data_type": "INTEGER",
    "business_meaning": "Minimum number of artists required for an exhibition",
    "optimization_role": "Constraint bound for exhibition requirements",
    "configuration_type": "scalar_parameter"
  },
  "Revenue_Calculation": {
    "formula_expression": "Ticket_Price * Attendance * x_ij",
    "data_type": "STRING",
    "business_meaning": "Total revenue calculation for the gallery",
    "optimization_role": "Objective function for optimization",
    "configuration_type": "business_logic_formula"
  }
}


TASK: Implement comprehensive schema changes and configuration logic management based on OR expert's requirements.

JSON STRUCTURE REQUIRED:

{
  "database_id": "theme_gallery",
  "iteration": 2,
  "implementation_summary": "Summary of schema changes and configuration logic updates based on OR expert mapping analysis",
  
  "or_requirements_analysis": {
    "mapping_gaps_identified": [
      "List specific gaps identified from OR expert's mapping_adequacy assessments"
    ],
    "missing_data_requirements": [
      "List missing optimization data requirements from OR expert"
    ],
    "business_configuration_logic_needs": [
      "Scalar parameters and formulas better suited for configuration than tables"
    ]
  },
  
  "schema_adjustment_decisions": {
    "tables_to_delete": [
      {
        "table_name": "table_name",
        "reason": "business justification for removal (optimization irrelevant vs business irrelevant)"
      }
    ],
    "tables_to_create": [
      {
        "table_name": "table_name", 
        "purpose": "optimization role (decision_variables/objective_coefficients/constraint_bounds/business_data)",
        "business_meaning": "what this table represents in business context"
      }
    ],
    "tables_to_modify": [
      {
        "table_name": "existing_table",
        "changes": "specific modifications needed",
        "reason": "why these changes address OR expert's mapping gaps"
      }
    ]
  },
  
  "business_configuration_logic_updates": {
    "configuration_parameters": {
      "parameter_name": {
        "sample_value": "sample_parameter_value",
        "data_type": "INTEGER/FLOAT/STRING/BOOLEAN",
        "business_meaning": "what this parameter represents in business context",
        "optimization_role": "how this parameter is used in optimization model",
        "configuration_type": "scalar_parameter"
      },
      "formula_name": {
        "formula_expression": "actual_business_formula_expression",
        "data_type": "STRING",
        "business_meaning": "what this formula represents in business context",
        "optimization_role": "how this formula is used in optimization model",
        "configuration_type": "business_logic_formula"
      }
    },
    "updates_rationale": "why these parameters are better in configuration logic than tables"
  },
  
  "implemented_optimization_mapping": {
    "objective_coefficients_mapping": {
      "coefficient_name[indices]": "table.column OR business_configuration_logic.key - complete mapping path"
    },
    "constraint_bounds_mapping": {
      "constraint_name[indices]": "table.column OR business_configuration_logic.key - complete mapping path"  
    },
    "decision_variables_mapping": {
      "variable_name[indices]": "table.column OR business_configuration_logic.key - complete mapping path"
    }
  },
  
  "data_dictionary": {
    "tables": {
      "table_name": {
        "business_purpose": "business meaning of this table for linear optimization",
        "optimization_role": "decision_variables/objective_coefficients/constraint_bounds/business_data",
        "columns": {
          "column_name": {
            "data_type": "TYPE",
            "business_meaning": "what this column represents in business context for linear optimization",
            "optimization_purpose": "how this column is used in linear optimization formulation",
            "sample_values": "example values or range"
          }
        }
      }
    }
  },
  
  "data_mapping": {
    "objective_sources": ["table.column pairs for linear objective function"],
    "constraint_sources": ["table.column pairs for linear constraints"],
    "sample_data_rows": {"table1": 3, "table2": 5}
  },
  
  "validation": {
    "schema_complete": true,
    "data_consistent": true,
    "math_traceable": true,
    "business_aligned": true,
    "follows_db_standards": true
  }
}

Response:
{
  "database_id": "theme_gallery",
  "iteration": 2,
  "implementation_summary": "Schema changes include creating tables for missing optimization requirements (Ticket_Price_j and Attendance_ij). Business configuration logic updated with scalar parameters and formulas for optimization constraints and calculations.",
  "or_requirements_analysis": {
    "mapping_gaps_identified": [
      "Ticket_Price_j and Attendance_ij are missing in the schema"
    ],
    "missing_data_requirements": [
      "Ticket_Price_j",
      "Attendance_ij"
    ],
    "business_configuration_logic_needs": [
      "Scalar parameters for Ticket_Price_j and Attendance_ij"
    ]
  },
  "schema_adjustment_decisions": {
    "tables_to_delete": [],
    "tables_to_create": [
      {
        "table_name": "exhibition_ticket_prices",
        "purpose": "objective_coefficients",
        "business_meaning": "Ticket price for each exhibition"
      },
      {
        "table_name": "artist_exhibition_attendance",
        "purpose": "objective_coefficients",
        "business_meaning": "Expected attendance for each artist in each exhibition"
      }
    ],
    "tables_to_modify": []
  },
  "business_configuration_logic_updates": {
    "configuration_parameters": {
      "Ticket_Price_j": {
        "sample_value": 50,
        "data_type": "INTEGER",
        "business_meaning": "Ticket price for exhibition j",
        "optimization_role": "Objective coefficient for optimization",
        "configuration_type": "scalar_parameter"
      },
      "Attendance_ij": {
        "sample_value": 100,
        "data_type": "INTEGER",
        "business_meaning": "Expected attendance for artist i in exhibition j",
        "optimization_role": "Objective coefficient for optimization",
        "configuration_type": "scalar_parameter"
      }
    },
    "updates_rationale": "These parameters are better suited for configuration logic as they are scalar values and do not require table storage."
  },
  "implemented_optimization_mapping": {
    "objective_coefficients_mapping": {
      "Ticket_Price_j": "business_configuration_logic.Ticket_Price_j",
      "Attendance_ij": "business_configuration_logic.Attendance_ij"
    },
    "constraint_bounds_mapping": {
      "Max_Exhibitions_Per_Artist_i": "artist_exhibition_limits.Max_Exhibitions",
      "Min_Artists_Per_Exhibition_j": "exhibition_artist_requirements.Min_Artists"
    },
    "decision_variables_mapping": {
      "x_ij": "artist_exhibition_assignments.Num_Exhibitions"
    }
  },
  "data_dictionary": {
    "tables": {
      "artist_exhibition_limits": {
        "business_purpose": "Maximum number of exhibitions each artist can participate in",
        "optimization_role": "constraint_bounds",
        "columns": {
          "Artist_ID": {
            "data_type": "INTEGER",
            "business_meaning": "Unique identifier for each artist",
            "optimization_purpose": "Index for artist constraints",
            "sample_values": [
              1,
              2,
              3
            ]
          },
          "Max_Exhibitions": {
            "data_type": "INTEGER",
            "business_meaning": "Maximum number of exhibitions the artist can participate in",
            "optimization_purpose": "Constraint bound for artist participation",
            "sample_values": [
              5,
              6,
              7
            ]
          }
        }
      },
      "exhibition_artist_requirements": {
        "business_purpose": "Minimum number of artists required for each exhibition",
        "optimization_role": "constraint_bounds",
        "columns": {
          "Exhibition_ID": {
            "data_type": "INTEGER",
            "business_meaning": "Unique identifier for each exhibition",
            "optimization_purpose": "Index for exhibition constraints",
            "sample_values": [
              1,
              2,
              3
            ]
          },
          "Min_Artists": {
            "data_type": "INTEGER",
            "business_meaning": "Minimum number of artists required for the exhibition",
            "optimization_purpose": "Constraint bound for exhibition requirements",
            "sample_values": [
              3,
              4,
              5
            ]
          }
        }
      },
      "artist_exhibition_assignments": {
        "business_purpose": "Number of exhibitions each artist participates in per year",
        "optimization_role": "decision_variables",
        "columns": {
          "Artist_ID": {
            "data_type": "INTEGER",
            "business_meaning": "Unique identifier for each artist",
            "optimization_purpose": "Index for artist participation",
            "sample_values": [
              1,
              2,
              3
            ]
          },
          "Exhibition_ID": {
            "data_type": "INTEGER",
            "business_meaning": "Unique identifier for each exhibition",
            "optimization_purpose": "Index for exhibition participation",
            "sample_values": [
              1,
              2,
              3
            ]
          },
          "Num_Exhibitions": {
            "data_type": "INTEGER",
            "business_meaning": "Number of exhibitions the artist participates in",
            "optimization_purpose": "Decision variable for optimization",
            "sample_values": [
              1,
              2,
              3
            ]
          }
        }
      },
      "exhibition_ticket_prices": {
        "business_purpose": "Ticket price for each exhibition",
        "optimization_role": "objective_coefficients",
        "columns": {
          "Exhibition_ID": {
            "data_type": "INTEGER",
            "business_meaning": "Unique identifier for each exhibition",
            "optimization_purpose": "Index for exhibition ticket prices",
            "sample_values": [
              1,
              2,
              3
            ]
          },
          "Ticket_Price": {
            "data_type": "INTEGER",
            "business_meaning": "Ticket price for the exhibition",
            "optimization_purpose": "Objective coefficient for optimization",
            "sample_values": [
              50,
              60,
              70
            ]
          }
        }
      },
      "artist_exhibition_attendance": {
        "business_purpose": "Expected attendance for each artist in each exhibition",
        "optimization_role": "objective_coefficients",
        "columns": {
          "Artist_ID": {
            "data_type": "INTEGER",
            "business_meaning": "Unique identifier for each artist",
            "optimization_purpose": "Index for artist attendance",
            "sample_values": [
              1,
              2,
              3
            ]
          },
          "Exhibition_ID": {
            "data_type": "INTEGER",
            "business_meaning": "Unique identifier for each exhibition",
            "optimization_purpose": "Index for exhibition attendance",
            "sample_values": [
              1,
              2,
              3
            ]
          },
          "Attendance": {
            "data_type": "INTEGER",
            "business_meaning": "Expected attendance for the artist in the exhibition",
            "optimization_purpose": "Objective coefficient for optimization",
            "sample_values": [
              100,
              150,
              200
            ]
          }
        }
      }
    }
  },
  "data_mapping": {
    "objective_sources": [
      "exhibition_ticket_prices.Ticket_Price",
      "artist_exhibition_attendance.Attendance"
    ],
    "constraint_sources": [
      "artist_exhibition_limits.Max_Exhibitions",
      "exhibition_artist_requirements.Min_Artists"
    ],
    "sample_data_rows": {
      "artist_exhibition_limits": 3,
      "exhibition_artist_requirements": 3,
      "artist_exhibition_assignments": 3,
      "exhibition_ticket_prices": 3,
      "artist_exhibition_attendance": 3
    }
  },
  "validation": {
    "schema_complete": true,
    "data_consistent": true,
    "math_traceable": true,
    "business_aligned": true,
    "follows_db_standards": true
  }
}
