vii - Design and implementation

Question 1

[1] are interleaved activities. The level of detail in the design depends on the type of system being developed and whether you are using a plan-driven or agile approach.

Answer 1

Software design and implementation

Question 2

The process of object-oriented design includes…

Answer 2

1. activities to design the system architecture
2. identify objects in the system
3. describe the design using different object models
4. document the component interfaces.

Question 3

A range of different models may be produced during an object-oriented design process. These include [1] (class models, generalization models, association models) and [2] (sequence models, state machine models).

Answer 3

1. static models
2. dynamic models

Question 4

[1] must be defined precisely so that other objects can use them. A [2] stereotype may be used to define interfaces.

Answer 4

1. Component interfaces
2. UML interface

Question 5

When developing software, you should always consider the possibility of [1] existing software, either as components, services, or complete systems.

Answer 5

reusing

Question 6

is the process of managing changes to an evolving software system. It is essential when a team of people are cooperating to develop software.

Answer 6

Configuration management

Question 7

Most software development is [1]. You use an IDE on a host machine to develop the software, which is transferred to a target machine for execution.

Answer 7

1. host-target development

Question 8

involves making the source code of a system publicly available. This means that many people can propose changes an improvements to the software.

Answer 8

Open source development

Question 9

This is a so-called ‘reciprocal’ license
that, simplistically, means that if you use open source software that is licensed
under the GPL license, then you must make that software open source.

Answer 9

GNU General Public License (GPL)

Question 10

variant of the GPL
license where you can write components that link to open source code without
having to publish the source of these components. However, if you change the
licensed component, then you must publish this as open source.

Answer 10

GNU Lesser General Public License (LGPL).

Question 11

This is a non-reciprocal license, which means you are not obliged to republish any changes or modifications made to open source code. You can include the code in proprietary systems that are sold. If you use open source components, you must acknowledge the original creator of the code.

Answer 11

Berkley Standard Distribution (BSD) License