Iteration 1 - DATA_ENGINEER
Sequence: 2
Timestamp: 2025-07-25 22:33:14

Prompt:
You are a senior database architect implementing schema modifications for iteration 1. 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 1):
{
  "database_id": "inn_1",
  "iteration": 0,
  "business_context": "Optimize room allocation to maximize revenue while respecting room capacities and reservation constraints.",
  "optimization_problem_description": "Maximize total revenue from room reservations by deciding which reservations to accept, ensuring that the number of guests does not exceed room capacities and that each room is not double-booked.",
  "optimization_formulation": {
    "objective": "maximize \u2211(Rate \u00d7 AcceptReservation)",
    "decision_variables": "AcceptReservation[Code] (binary: 1 if reservation is accepted, 0 otherwise)",
    "constraints": [
      "\u2211(Adults[Code] + Kids[Code]) \u00d7 AcceptReservation[Code] \u2264 maxOccupancy[Room] for each Room",
      "\u2211(AcceptReservation[Code] where Room[Code] = Room) \u2264 1 for each Room and overlapping CheckIn/CheckOut dates"
    ]
  },
  "current_optimization_to_schema_mapping": {
    "objective_coefficients": {
      "Rate[Code]": {
        "currently_mapped_to": "Reservations.Rate",
        "mapping_adequacy": "good",
        "description": "Revenue generated from each reservation"
      }
    },
    "constraint_bounds": {
      "maxOccupancy[Room]": {
        "currently_mapped_to": "Rooms.maxOccupancy",
        "mapping_adequacy": "good",
        "description": "Maximum number of guests allowed in a room"
      }
    },
    "decision_variables": {
      "AcceptReservation[Code]": {
        "currently_mapped_to": "missing",
        "mapping_adequacy": "missing",
        "description": "Decision to accept or reject a reservation",
        "variable_type": "binary"
      }
    }
  },
  "missing_optimization_requirements": [
    "AcceptReservation decision variable",
    "Overlap detection logic for CheckIn/CheckOut dates"
  ],
  "iteration_status": {
    "complete": false,
    "confidence": "medium",
    "next_focus": "Define AcceptReservation variable and implement date overlap constraints"
  }
}





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

JSON STRUCTURE REQUIRED:

{
  "database_id": "inn_1",
  "iteration": 1,
  "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": "inn_1",
  "iteration": 1,
  "implementation_summary": "Schema changes include adding a new table for decision variables and updating configuration logic to handle date overlap constraints. Business configuration logic now includes scalar parameters and formulas for optimization.",
  "or_requirements_analysis": {
    "mapping_gaps_identified": [
      "AcceptReservation decision variable is missing",
      "Overlap detection logic for CheckIn/CheckOut dates is missing"
    ],
    "missing_data_requirements": [
      "AcceptReservation decision variable",
      "Overlap detection logic for CheckIn/CheckOut dates"
    ],
    "business_configuration_logic_needs": [
      "Date overlap detection formula",
      "Scalar parameters for room capacities and reservation rates"
    ]
  },
  "schema_adjustment_decisions": {
    "tables_to_delete": [],
    "tables_to_create": [
      {
        "table_name": "ReservationDecisions",
        "purpose": "decision_variables",
        "business_meaning": "Stores the decision to accept or reject each reservation"
      }
    ],
    "tables_to_modify": [
      {
        "table_name": "Reservations",
        "changes": "Add AcceptReservation column",
        "reason": "To map the AcceptReservation decision variable as identified by the OR expert"
      }
    ]
  },
  "business_configuration_logic_updates": {
    "configuration_parameters": {
      "maxOccupancy": {
        "sample_value": 4,
        "data_type": "INTEGER",
        "business_meaning": "Maximum number of guests allowed in a room",
        "optimization_role": "Constraint bound for room capacity",
        "configuration_type": "scalar_parameter"
      },
      "dateOverlapFormula": {
        "formula_expression": "CheckIn[Code1] < CheckOut[Code2] && CheckIn[Code2] < CheckOut[Code1]",
        "data_type": "STRING",
        "business_meaning": "Detects overlapping reservation dates",
        "optimization_role": "Constraint to prevent double-booking",
        "configuration_type": "business_logic_formula"
      }
    },
    "updates_rationale": "These parameters and formulas are better suited for configuration logic as they are scalar values and business logic expressions that do not require table storage."
  },
  "implemented_optimization_mapping": {
    "objective_coefficients_mapping": {
      "Rate[Code]": "Reservations.Rate"
    },
    "constraint_bounds_mapping": {
      "maxOccupancy[Room]": "business_configuration_logic.maxOccupancy"
    },
    "decision_variables_mapping": {
      "AcceptReservation[Code]": "ReservationDecisions.AcceptReservation"
    }
  },
  "data_dictionary": {
    "tables": {
      "ReservationDecisions": {
        "business_purpose": "Stores the decision to accept or reject each reservation",
        "optimization_role": "decision_variables",
        "columns": {
          "AcceptReservation": {
            "data_type": "BOOLEAN",
            "business_meaning": "Decision to accept or reject a reservation",
            "optimization_purpose": "Binary decision variable in optimization model",
            "sample_values": "0, 1"
          }
        }
      },
      "Reservations": {
        "business_purpose": "Stores details of each reservation",
        "optimization_role": "business_data",
        "columns": {
          "Rate": {
            "data_type": "FLOAT",
            "business_meaning": "Revenue generated from each reservation",
            "optimization_purpose": "Coefficient in the objective function",
            "sample_values": "100.0, 150.0"
          },
          "AcceptReservation": {
            "data_type": "BOOLEAN",
            "business_meaning": "Decision to accept or reject a reservation",
            "optimization_purpose": "Binary decision variable in optimization model",
            "sample_values": "0, 1"
          }
        }
      }
    }
  },
  "data_mapping": {
    "objective_sources": [
      "Reservations.Rate"
    ],
    "constraint_sources": [
      "business_configuration_logic.maxOccupancy"
    ],
    "sample_data_rows": {
      "ReservationDecisions": 3,
      "Reservations": 5
    }
  },
  "validation": {
    "schema_complete": true,
    "data_consistent": true,
    "math_traceable": true,
    "business_aligned": true,
    "follows_db_standards": true
  }
}
