Conceptual data modeling is typically done in parallel

Assignment Help Database Management System

Reference no: EM13782297

Question 1. Conceptual data modeling is typically done in parallel with other requirements analysis and structuring steps during
systems planning and selection.

systems design.
systems analysis.
systems implementation and operation.
systems evaluation.

Question 2. On an entity-relationship diagram, a rectangle represents a(n)

data flow.
entity.
multivalued attribute.
repeating group.
relationship.

Question 3. A collection of entities that share common properties or characteristics best defines

entity type.
entity instance.
entity occurrence.
entity collection.
data set.

Question 4. An attribute (or combination of attributes) that uniquely identifies each instance of an entity type defines
data element occurrence.

trigger.
candidate key.
associative entity.
data marker.

Question 5. A relationship between the instances of one entity type is a

unary relationship.
binary relationship.
ternary relationship.
singular occurrence.
partnership occurrence.

Question 6. A relationship between instances of two entity types is a

unary relationship.
binary relationship.
ternary relationship.
multiple occurrence.
partnership occurrence.

Question 7. A relationship that the data modeler chooses to model as an entity type best defines

recursive relationship.
associative entity.
domain.
complex relationship.
complex entity.

Question 8. During which of the following steps will you bring the current phase to a close, prepare a report and presentation to management concerning continuation of the project, and get ready to move the project into design?

Designing the human interface
Requirements determination
Project initiation and planning
Alternative generation and selection
Requirements structuring

Question 9. Enumerating different potential implementation environments that could be used to deliver the different sets of capabilities occurs during the

requirements structuring step of the analysis phase.
alternative generation and selection step of the analysis phase.
testing step of the implementation and operation phase.
project initiation and planning step of the planning and selection phase.
designing the human interface step of the design phase.

Question 10. A good number of alternatives to generate is

three.
two.
four.
five.
seven.

Reference no: EM13782297

Questions Cloud

Web applications enable interaction between organizations : Web applications enable interaction between organizations and their clients. Find an interesting Web application on the Internet and present a short summary, and then answer the following prompts. 1. Why did you choose this application? 2. What kind ..

Meadow political advisers have no estimate available : Miranda Meadow, a Virginia senatorial candidate wants an estimate of the proportion of the population who will support her in the November election. Assume a 95% level of confidence. Meadow wants the estimate to be within 0.04 of the true proportion...

A cream with alpha hydroxy acid, : Use Skin Cream as your header. Select Stat > Basic Statistics > 1- Proportion... Complete the dialog in order to obtain a 97 percent confidence interval. b) Based on the 97% confidence interval for women exhibiting no improvement, do you have suffici..

What ror did we attain if we now invest : 1) We receive $3,000 per semester and $87,000 in 9 years from the present. What ROR did we attain, if we now invest $4,000? 2) We buy an asset for $20,000. We receive money to the tune of ___ per month. At the end, 4 years later, we are paid $12,00..

Conceptual data modeling is typically done in parallel : Conceptual data modeling is typically done in parallel with other requirements analysis and structuring steps during systems planning and selection.

No signs of physical violence on steenkamp body : Pistorius had been arrested in 2009 for violent conduct involving a young woman, and he was also once investigated for illegal ownership of .38 caliber ammunition that defense lawyers said belonged to his father. An autopsy meanwhile found no signs o..

Four out of five doctors prefer fred''s aspirin : Four out of five doctors prefer Fred's Aspirin." Thinking about sampling and exhaustive categories, what is wrong with this statement? Can you think of other, similarly misleading statements?

A child psychologist was interested in the difference in age : A child psychologist was interested in the difference in age (in years) between a boy and a girl when they first learn to ride a two-wheeled bicycle. The psychologist calculated a 99% confidence interval for the difference in age to be (-0.58, 0.71)...

The test scores for selected samples of sociology students : The test scores for selected samples of sociology students who took the course from three different instructors are shown below. Instructor A Instructor B Instructor C

User Account

All Pages