OBJECT-ORIENTED DESIGN,
PROJECT KICK-OFF
CSSE 120—Rose Hulman Institute of Technology
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Object-Oriented Design: CSSE 120 Project Kick-off at Rose Hulman Institute of Technology, Study Guides, Projects, Research of Software Engineering
The concept of object-oriented design (ood) as part of the software design course csse 120 at rose hulman institute of technology. Ood is a process of breaking down a problem into manageable components, or objects, which interact to solve the problem. Components provide services through interfaces, and clients use these services. Objects hide irrelevant details from clients and can be independently developed and improved. The document also covers the differences between top-down design and ood, guidelines for oo design, and an ood case study of forest fire. Students are encouraged to begin the object-oriented design of tetris during the project kickoff.
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OBJECT-ORIENTED DESIGN,PROJECT KICK-OFF CSSE 120—Rose Hulman Institute of Technology
Software Design
A process of breaking a problem down intomanageable pieces—
components
Components interact to solve the problem Every component provides services through interfaces Other components, called clients
use these services
The components are
abstractions
They hide irrelevant details from clients They can be independently developed and improved
Components provide
separation of concerns
Top-down vs. object-orienteddesign
Top-down Design Object-orientedDesign Abstractionmechanism (Whatsort of thing are thecomponents?) Interface(How do clientsinteract with othercomponents?) Functions Objects Formalparameters, returnvalues Accessor andmutator methods (with formalparams, return vals)
"If we can
break a
large
problem into a set of
cooperating
classes
, we drastically
reduce the
complexity
that must be considered
to understand
any
given
part of the program
Zelle writes:
emphasis added
OO Design Process
Within classes, uses top-down design for refinemethods^
Break complex methods down into calls to helpermethods Sometimes need to add methods to other classes
Work iteratively^
Add methods, design new classes, change existingclasses
Experiment!
Keep it simple!
OOD Case Study: Forest FireWatch demo, then read problem statement
Project Kickoff
Taken from http://www.socialfiction.org
Getting Started with Tetris
Instructor will announce project teams
Get together with teammates and work on thefollowing:^
Exchange contact information:^ Email, cell phones, preferred meeting times and places Begin object-oriented design of Tetris^ On ANGEL: Lessons Project Instructions OOD sketches due next meeting