Exercise

Multichoices

Components

Question 1

What is the hierarchy of different levels of architecture?

Reference architecture is the most generic

Concrete architecture specializes meta-architecture

Product architecture implements concrete architecture

Framework architecture implements both meta and concrete architecture

Question 2

Select the right ones from the following SW architecture claims:

It is important, because clients and developers can share a common understanding and communicate by exploiting it.

Architecture is mainly defined by functional not quality requirements.

The concrete SW architecture documentation defines primarily concepts and used UML mechanisms, such as UML profiles

It enables testing without yet having an implementation.

Question 3

The symptoms of a failing architecture are:

the system cannot be finalized

the system is inflexible

testing and maintenance requires a huge amount of effort

the system does not scale

Question 4

The most common reasons for the failure of an architectural design:

An inexperienced architect

No properly known user requirements

Clients try to save their money

Managers have an over-optimistic view of the situation

Question 5

If products will be constructed of ready-made components, they are most probably

easier to learn

easier to modify

more error-prone

easier to license

Design

Software design patterns

The topic of next lectures will be software design patterns. In this task, you read about one software design pattern, the Composite. There are a couple of links below, but obviously you can look from other sources too, such as course books, etc:

• w3sDesign - Composite

• Wikipedia - Composite pattern

Reply the following questions:

• Which problems does this pattern solve?

• What other consequences or impacts does this pattern have?

• When should you use this pattern?

• When should you not use this pattern? What are the negative sides of it?

• Invent an example situation/software where composite pattern would be useful. No need to code anything, just describe the situation with a few sentences.**

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