理解市场变化依靠可追溯的商品数据。
基于已批准公开数据源构建价格、库存、商品组合和目录工作流，并保留匹配逻辑、新鲜度、验证和证据。
WORKFLOWS
围绕真实业务问题构建可验证的数据工作流。
从明确的数据源、Schema、新鲜度和验收标准开始，而不是从夸大的通用成功率开始。
Price monitoring
Track matched products across approved sources and preserve source URL and collection time behind each price.
Availability & assortment
Monitor stock signals, assortment changes, new products, and discontinued listings.
Catalog research
Discover product pages, normalize fields, and build source-specific records for merchandising analysis.
METHOD
把范围、采集、结构化、验证和交付分成可检查步骤。
每一步都保留上下文与失败状态，便于复核和持续改进。
Scope
Choose approved retailers, categories, markets, and collection cadence.
Match
Define product identity, variant, pack size, seller, currency, and region rules.
Acquire
Collect source observations with URLs and timestamps attached.
Validate
Treat missing, blocked, or ambiguous values as review-needed rather than silently carrying stale data.
Act
Send validated price, stock, or assortment changes into dashboards and alerts.
QUALITY
用证据衡量质量，而不是用一个通用百分比。
当有带日期和样本范围的基准证据时，再发布对应质量指标；否则明确保留不确定性。
Matched identity
Variant, pack-size, seller, currency, and region differences need explicit rules.
Fresh observations
Carry collection time and source state so stale records are not mistaken for current market signals.
Reviewable exceptions
Surface uncertain matches and acquisition failures instead of hiding them inside an aggregate percentage.
从一个可测量的试点开始。
明确数据源、Schema、频率和验收标准，再根据真实结果扩大范围。