Business object Interview Question and Answers

21. What are the different schemas supported by BO Designer?
 
  • Star Schema
  • Snowflake Schema
  • Multistar Schema
  • Normalized production Schema
  • Data warehouse with aggregates
 
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22. What is a Fan trap?
  A one to many join links a table which is in turn linked by a one to many join. This type of fanning out of one to many joins is called a Fan trap.
 
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23. What is the difference betweeen class and universe?
 
  • A class is a collection of objects based on business categories.
  • A universe is a set of classes and objects intended for a specific application or group of users.
 
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24. What is a repository? What does it contain?
  It is a relational data account created on a database like Oracle, MS-Access, Informix, DB2 etc when the BO is installed. It will have all the BO system tables, metadata about designer, Information about universes, the actual universes, user documents and most importantly security information.
 
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25. What different domain are there in BO?
 
    There are three domains in BO are :
  • Security
  • Universe
  • Document domains
 
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