數(shù)據(jù)字典主要包括( )幾個(gè)部分
A.?dāng)?shù)據(jù)項(xiàng)、數(shù)據(jù)結(jié)構(gòu)、數(shù)據(jù)流、數(shù)據(jù)存儲(chǔ)、處理過(guò)程等
B.?dāng)?shù)據(jù)項(xiàng)、數(shù)據(jù)收集、數(shù)據(jù)流、數(shù)據(jù)驗(yàn)證、數(shù)據(jù)保密等
C.?dāng)?shù)據(jù)項(xiàng)、數(shù)據(jù)收集、數(shù)據(jù)流、數(shù)據(jù)存儲(chǔ)、處理過(guò)程等
D.?dāng)?shù)據(jù)項(xiàng)、數(shù)據(jù)結(jié)構(gòu)、數(shù)據(jù)流、數(shù)據(jù)驗(yàn)證、數(shù)據(jù)保密等