Data lineage includes two parts : ( 1 ) the set of source data items which exactly produces the warehouse data item ; ( 2 ) the processes which contribute to the set of source data items 數(shù)據(jù)志包含兩個部分:起始數(shù)據(jù)集和作用在該數(shù)據(jù)集上的數(shù)據(jù)處理過程。獲取數(shù)據(jù)志的過程稱為數(shù)據(jù)志跟蹤( datalineagetracing ) 。