產品護照要記住維修，而不只是出生證明

from dataclasses import dataclass
from typing import List, Tuple

@dataclass
class Observation:
    name: str
    value: float
    weight: float
    confidence: float

def normalize(value: float, low: float, high: float) -> float:
    # 將觀測值限制在示例區間並轉換為 0 到 1
    if high <= low:
        raise ValueError("high 必須大於 low")
    clipped = min(max(value, low), high)
    return (clipped - low) / (high - low)

def evaluate(rows: List[Observation]) -> Tuple[float, List[str]]:
    weighted_sum = 0.0
    weight_total = 0.0
    notes = []
    for row in rows:
        reliable_weight = row.weight * row.confidence
        weighted_sum += row.value * reliable_weight
        weight_total += reliable_weight
        if row.confidence < 0.6:
            notes.append(f"{row.name}: 資料可信度偏低")
    if weight_total == 0:
        return 0.0, ["沒有可用觀測"]
    return weighted_sum / weight_total, notes

# 以下均為說明方法的模擬輸入，並非真實量測
samples = [
    Observation("示例產品識別規則", normalize(62, 0, 100), 1.0, 0.9),
    Observation("核心履歷事件", normalize(48, 0, 100), 0.8, 0.7),
    Observation("公開與受限資料", normalize(75, 0, 100), 1.2, 0.8),
    Observation("維修紀錄保留下限", normalize(35, 0, 100), 0.7, 0.5),
]
score, warnings = evaluate(samples)
print("綜合示例分數:", round(score, 3))
for warning in warnings:
    print("檢查:", warning)