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Author Question: Briefly describe Bradley's three-level database model. What will be an ideal ... (Read 156 times)

Brittanyd9008

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on: Jul 7, 2018
Briefly describe Bradley's three-level database model.
 
  What will be an ideal response?

Question 2

In a three-tiered architecture, middleware is housed in:
 
  A)
 
  Tier 0.
  B)
 
  Tier 1.
  C)
 
  Tier 2.
  D)
 
  Tier 3.


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dajones82

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Reply #1 on: Jul 7, 2018
Answer to Question 1

1. Level 1 is the external, conceptual, or local level. This level is not concerned with how the data is physically stored or what data is used by other applications.
2. Level 2 is the logical or enterprise data level. It encompasses all of the organization's relevant data under the control of the data administrators.
3. Level 3 is the physical or storage level. It specifies the way the data is physically stored.

Answer to Question 2

C


Brittanyd9008

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Reply 2 on: Jul 7, 2018
Thanks for the timely response, appreciate it

fatboyy09

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Reply 3 on: Yesterday
Wow, this really help

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