Quiz 6

Question 1

What can be shown using UML Package Diagrams?

Answer 1

• Large-scale organization of the software classes into subsystems
• Logical Architecture
• Dependency relationships between subsystems

Question 2

What is the prime input for LA?

Answer 2

Supplementary Specification

Question 3

Typical logical units in an LA

Answer 3

Layers, Subsystems, Packages

Question 4

Typical layers in an LA

Answer 4

User interface, domain objects, technical services

Question 5

Domain Objects layer can also be broken into

Answer 5

Core application logic and domain

Question 6

What problems do layers address?

Answer 6

• Source code changes rippling
• High coupling across different areas of concern
• Application logic being intertwined with the UI

Question 7

Is an SSD static or dynamic?

Answer 7

Dynamic

Question 8

What is LA?

Answer 8

Large-scale organization of software classes into packages, subsystems, and layers. This decides how software classes should be defined

Question 9

Strict Layered Architecture

Answer 9

Higher layer calls upon and only calls upon services in lower layers

Question 10

Model-view Separation principle

Answer 10

1) Don’t couple non-UI objects directly to UI objects
2) Don’t put application logic in UI object methods

Question 11

Observer pattern

Answer 11

Domain objects send messages to VI objects viewed only in terms of an interface

Question 12

Facade pattern

Answer 12

Public facade object defines the services for the subsystem, and clients collaborate with the facade, not the internal components