Opacity – It is hard to read and understand. It does not express its intent well.
Agile Software Development: Principles, Patterns, and Practices ch7 p88 ...
OO Design. 1. Object Oriented. Design. Kenneth M. Anderson. Lecture 20. CSCI
5828: ... The line between OO analysis and OO design is blurry, as analysis ...
The rules of the game act as an initial specification of the problem. A card deck
consists of .... To integrate the Card class into the world of Java, we define Card
to ...
To describe the activities in the object-oriented design process. • To introduce ...
Object-oriented analysis, design and programming are related but distinct.
Robert C. Martin "Uncle Bob". – Author: • Clean Code: A Handbook of Agile
Software. Craftsmanship. • Agile Software Development, Principles, Patterns, and
.
Aug 25, 2009 ... Ruby, Python, Ruby on Rails, Django, etc. • If you encounter a cool ... OO
analysis, design, and implementation techniques. • object-oriented ...
make it go away. Certainly, there will always be geniuses among us, people of extraordinary skill who can do the work of
Analysis and Object Oriented Design (OOA/OOD) concepts. • RDD Methodology
... OMT methodology [1991]: James Rumbaugh led a team at research labs of ...
the theory of normalization to object-oriented design and shows that, if applied ..... this problem and is free of the unnecessary complexities associated with the ...
Sep 27, 1993 - This paper presents a methodology for software analysis and design ..... Once relationships between classes are codi ed as edge de nitions, ...
Keywords- Heuristics, Object Oriented Design, Software Metrics and Software ... consistent model for the analysis, design, and implementation of applications.
Title: Object-Oriented Design & Patterns, 2nd ed. Author: Cay Horstmann.
Publisher: Wiley Publishers, Inc. ISBN-13: 978-0471744870. There may be
additional ...
System analysis: – Study. – Understand. – Define the system requirements. •
System design: show how various system components will be implemented using
...
Abstract. Teaching introductory object-oriented programming presents considerable challenges. Some of these challenges are due to the intrinsic complexity of ...
Cay Horstmann. Object. Oriented Software Design. & Patterns (2nd ed).
Advanced OOP ... You will also learn how to use well known designs for
organizing the.
of course design, in particular for object-oriented programming. The Truc .... computer science teachers from high schools, colleges, and universities in various.
of the O-O programming features to O-O design and analysis [Booch86]. □
Database Design -- adopts semantic data modeling ideas, including E-R
diagrams ...
Ada's Design Goals and Object-Oriented Programming. Jeffrey R. Carter. Boeing Information Services. 7990 Boeing Court. Vienna, VA 22182-3999. (703) 827- ...
Reusable OO Design Patterns: – Adapter ... recording experience in software
design for others to use. .... Provide a way to access the elements of an
aggregate ...
But how to get to the design objects and mechanisms? ... “Design Patterns:
Elements of Reusable Object-. Oriented Software,” Gamma, Helm, Johnson,.
Object-orientation is not a panacea for successful system development as noted in [Jacobson92]. ... Its main objective is to make the OO software development.
We refer to large graphs as graphs containing more than a thousand elements ...... by compiling a single object written to the GVF API and adding the object ...
Teaching software design would result in a broader introduction to computer ..... the survey of their opinions after they had completed all course requirements.
Agile Software Development, Principles, Patterns, and. Practices. • Agile
Principles, Patterns, and Practices in C#. • The Clean Coder: A Code of Conduct
for ...
Overview • How to build complex software? – Structured programming • gotos considered harmful
– Object oriented programming (OOP)
• Language support alone isn't enough – (or even strictly necessary) – How we use the tools matters!
• Objected oriented design (OOD) – How do we design software that is easy to modify, extend and maintain? 2
Overview • Robert C. Martin "Uncle Bob" – Author: • Clean Code: A Handbook of Agile Software Craftsmanship • Agile Software Development, Principles, Patterns, and Practices • Agile Principles, Patterns, and Practices in C# • The Clean Coder: A Code of Conduct for Professional Programmers •… http://butunclebob.com/ArticleS.UncleBob.PrinciplesOfOod
3
SOLID • How to manage dependencies in code? – The first five principles - SOLID
Single Responsibility Principle (SRP) "A class should have only one reason to change." • Strive for cohesion – Functional relatedness of the elements of a module – The forces that cause a module, or a class, to change
Open/closed principle (OCP) "Classes should be open for extension, but closed for modification." • Principle underlying common heuristics: – All instance variable should be private – Avoid global variables
Liskov Substitution principle "Derived classes must be substitutable for their base classes." • The base class should not have to know about all of its derivatives – This would violate OCP – e.g. subclassing Square from Rectangle SRP
Interface segregation principle (ISP) "Clients should not be forced to depend upon interface that they do not use." • We don't want "fat" or "polluted" interfaces – Interfaces that are not specific to a single client – Leads to inadvertent coupling between clients that would otherwise be isolated SRP
Dependency inversion principle (DIP) "Depend on abstractions. Do not depend upon concrete classes." • High-level components should not depend on lowlevel components – Both should depend on abstractions • Abstract classes should not depend upon concrete classes • Concrete classes should depend on abstract classes SRP
