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WorksheetsChapter 3 - Database Life Cycle
Total questions: 10
Worksheet time: 6mins
The following that is correct to describe bottom-up approach in database system design
Identify data sets
Identify data elements
Defines attributes
Define entities
The following that is correct to describe top-down approach in database system design
Identify data sets
Identify data elements
Defines attributes
Define entities
Which one is correct for top down approach in designing database system.
Entity -> Concept-> Attribute
Concept->Attribute ->Entity
Concept->Entity->Attribute
Attribute->Entity->Concept
Which one is correct for bottom up approach in designing database system.
Entity -> Concept-> Attribute
Concept->Attribute ->Entity
Concept->Entity->Attribute
Attribute->Entity->Concept
Regardless, top down or bottom up design approaches in DBLC , defining entities is always placed in level
One
Two
Three
In designing a database system, it is possible to define the attributes first before entities.
TRUE
FALSE
Factors that affecting in DBMS selection
Cost
Entities
Features/Tools
Hardware requirements
Storage features depend on the
DBMS
Hardware
ER model
Access features depend on the
DBMS
Hardware
ER model
It used to verify against the processes of the proposed system.
DBMS
Hardware
ER model
