SE2 mid-term revision pt. 3

Architectural Styles:

Specify layers, high-level modules of the application and how those modules and layers interact with each other, the relations between them

• true

• false

Architectural Patterns

Solve the problems related to the Architectural Style

• True

• False

The difference between Architectural Styles vs Architectural Patterns

• Decrease

• the scope

• Narrowness

• Restraint

Architectural Style is the application design at the ______ level of abstraction

• highest

• lowest

Architectural Pattern is a way to _____ an Architectural Style

• imagine

• think of

• design

• implement

Architectural styles define an ______ for a family of system in terms of the pattern of structural organization

• abstract framework

• particular way

• component

• connector

Architectural styles describe a particular way to configure a collection of

• components

• components and connectors

• connectors

• None of these above

Hierarchical

Each layer provides services to the layer _____ it and acts as a client of the layer below

• above

• below

Hierarchical strengths are?

• Separation into levels of abstraction; helps partition complex problems

• Performance overhead from going through layers

• Reusability: implementation of a layer can be reused

• Strict discipline often bypassed in practice

• Extendibility: changes can be limited to one layer

Client-server strengths are

• Makes effective use of networked systems

• Communication may be expensive

• May allow for cheaper hardware

• Easy to add new servers or upgrade existing servers

• Availability (redundancy) may be straightforward