1. Adapted Anchor modeling methodology
The data warehouse core architecture should follow the adapted (non-original) Anchor modeling methodology described below (but not the Data Vault ).
Table type |
Examples of table name (description in brackets) |
What types of tables can it be linked to? |
Required field type |
Field name examples |
Entities (Anchor, Entity type). Denoted by a square |
TR_Transaction (semiconductor for debit or credit), AC_Account (synthetic account) |
Relationships, Entity Attribute |
Entity surrogate key |
TR_ID, AC_ID |
Attribute of entities (Attribute). Denoted by a circle |
TR_TDT_TransactionDate (date of the transaction) |
Entities |
Entity surrogate key (is the primary key for the lifetime of the record) |
TR_ID |
The start date and time of the entry |
TR_TDT_FROM |
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Record expiration date and time (not inclusive) |
TR_TDT_BEFORE |
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Entity Attribute |
TR_TDT |
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Connections (Tie, Relationship). Denoted by a rhombus |
TR_AC_DC_Transaction_Account_DrCr (ledger account in semiconductor) |
Entities |
Surrogate keys for each related entity (together with some relationship attributes that indicate the type of relationship, form a composite key during the lifetime of the record) |
TR_ID, AC_ID |
The start date and time of the entry |
TR_AC_DC_FROM |
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Record expiration date and time (not inclusive) |
TR_AC_DC_BEFORE |
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|
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