Các kiến trúc sư doanh nghiệp dữ liệu giúp một tổ chức quy hoạch sử dụng hiệu quả nhất thông tin của tổ chức. cấu hình lưu trữ dữ liệu của một tổ chức bao gồm nhiều loại lưu trữ dữ liệu, như được minh họa trong hình sau đây, mỗi lần với một mục đích cụ thể: | Part I Laying the Foundation Planning Data Stores The enterprise data architect helps an organization plan the most effective use of information throughout the organization. An organization s data store configuration includes multiple types of data stores as illustrated in the following figure each with a specific purpose Operational databases or OLTP online transaction processing databases collect first-generation transactional data that is essential to the day-to-day operation of the organization and unique to the organization. An organization might have an operational data store to serve each unit or function within it. Regardless of the organization s size an organization with a singly focused purpose may very well have only one operational database. For performance operational stores are tuned for a balance of data retrieval and updates so indexes and locking are key concerns. Because these databases receive first-generation data they are subject to data update anomalies and benefit from normalization. A typical organizational data store configuration includes several operational data stores feeding multiple data marts and a single master data store see graphic . Caching data stores sometime called reporting databases are optional read-only copies of all or part of an operational database. An organization might have multiple caching data stores to deliver data throughout the organization. Caching data stores onin ed 32 Data Architecture 2 c ontinued might use SQL Server replication or log shipping to populate the database and are tuned for high-performance data retrieval. Reference data stores are primarily read-only and store generic data required by the organization but which seldom changes similar to the reference section of the library. Examples of reference data might be unit of measure conversion factors or ISO country codes. A reference data store is tuned for high-performance data retrieval. Data warehouses collect large amounts of
