... patterns are available for off-the-shelf use, just as classes
are available in class libraries. Software engineering patterns are patterns on a larger
scale than the simple program seen above. ... the screen as a game
is played. A natural (but as we shall see later flawed) structure would be to see that black
and white pieces are instances of class
Black and White and that these...
... Suggest another system for which cost-benefit analysis is probably not
appropriate.
We will examine carrying out a feasibility study of the software for an ATM, outlined
in Appendix A. An ATM is part ... meaningfully assess the value of a system that allows a patient
to book a medical appointment, or a system that provides information on bus arrival times
at bus stops?
3.4...
... x;
}
Encapsulating data makes it clear how data is being accessed and by whom. Data
declared as public can be accessed by any part of the software in an uncontrolled fashion.
Encapsulation is ... testing.) A
pattern has a name, an application domain and a suggestion for a solution. Patterns
enable novices to use the knowledge of experts. They provide a body of knowledge
and a...
... a scripting language is that it provides a facility to invoke
other programs. The programs can be passed information as parameters or alter-
natively the programs can pass information as data ... of
a conventional programming language.
18. 2 Review the features of the Unix scripting language.
18. 3 Compare and contrast the Unix pipes and filters approach to constructing software...
... idea of how long it should take or will take.
This is a nightmare situation for any project manager.
The problems are not helped by the available software engineering techniques. What
a manager ... methods. For example, a military
client may require the use of Ada in conjunction with formal specification.
Any software development organization has expertise in particular tools...
... diagrams are not a part of UML, and the information in a data
flow diagram cannot be described in UML. Now it may be that diagrams such as
dataflow are redundant, but alternatively it may be that they ... program
generators and automated tools.
Long-term, traditional procedural programming languages may vanish to be
replaced by declarative languages (functional and or logic languages)...
... Library Cataloguing-in-Publication Data
A catalogue record for this book is available from the British Library
Library of Congress Cataloging-in-Publication Data
Bell, Doug, 1944-
Software engineering ... Page ii
Software Engineering
for Students
BELL _A0 1.QXD 2/2/05 3:20 PM Page i
Software Engineering
for Students
A Programming Approach
Fourth Edition
DOUGLAS BELL...
... software engineering methods are well-defined while others
are ill-defined. And the processes of software development are always under debate.
Software engineering is about imagination and creativity ... 410
B Glossary 411
C UML Summary 412
C.1 Use case diagrams 412
C.2 Class diagrams 413
C.3 Package diagrams 414
C.4 Activity diagrams 414
Further reading 416
Bibliography 417
Index 4...
... as appropriate within the text as a graphi-
cal design notation. Some other graphical notations – flowcharts, structure charts and
data flow diagrams are also used.
Java is used as an illustrative ... software is software that helps perform some directly useful or enjoyable
task. Examples are games, the software for automatic teller machines (ATMs), the
control software in an airp...