DatabaseManagementSystem

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  • DSM
    • Features
      • For data (create, edit, search)
      • Security – check passwords and access rights
      • Managing facilities for sharing data
      • Lets applications revolved around the the database to access data and to have new applications
    • Advantages
      • Better data securitty
      • Increased consistency and fewer error messages
      • Improved data access to users due to host and query languages
      • Less data redundancy
    • Disadvantages
      • The hardware/software costs are quite a bit
      • If the database is affected all applications are affected
      • They are complicated and time consuming to design
      • When changing from a file based systems to a database the conversion cost is extensive

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