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http://www.myreadingroom.co.in/notes-and-studymaterial/65-dbms/561-operational-data-and-decision-support-data.html
Instead, decision support data represent transaction summaries; therefore, the decision support database stores data that are integrated, aggregated, and summarized for decision support purposes. • The degree to which decision support data are summarized is very high when contrasted with operational data.
https://www.ques10.com/p/17027/operational-vs-decision-support-system/
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https://www.oreilly.com/library/view/data-warehousing-fundamentals/9780471412540/9780471412540_operational_versus_decision-support_sys.html
1.4. OPERATIONAL VERSUS DECISION-SUPPORT SYSTEMS What is a basic reason for the failure of all the previous attempts by IT to provide strategic information? What has IT been doing all … - Selection from DATA WAREHOUSING FUNDAMENTALS: A Comprehensive Guide for IT Professionals [Book]
http://dssresources.com/faq/index.php?action=artikel&id=146
Decision support data stores rarely include the details of each operating transaction. DSS data may include transaction summaries. In general, DSS data are integrated from multiple operational databases and DSS data are sometimes aggregated and summarized in the database to support predefined decision support queries.
https://www.techopedia.com/definition/5711/operational-database-odb
Operational Database: An operational database is a database that is used to manage and store data in real time. An operational database is the source for a data warehouse. Elements in an operational database can be added and removed on the fly. These databases can be either SQL or NoSQL-based, where the latter is geared toward real-time operations.
https://www.techopedia.com/definition/24238/operational-support-system-oss
Operational Support System: An operational support system (OSS) is a group of computer programs or an IT system used by communications service providers for monitoring, controlling, analyzing and managing a computer or telephone network system. OSS software is specifically dedicated to telecommunications service providers and mainly used for ...
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