DEV475 Mastering Object-Oriented Analysis and Design with UML ...

DEV475 Mastering Object-Oriented Analysis and Design with UMLWhat Is Modularity?What Is Modularity?• Modularity is the breakingup of something complex intomanageable pieces.• Modularity helps people tounderstand complex systems.Mastering Object Oriented Analysis and Design with UMLCopyright © 2003 Rational Software, all rights reserved 20Modularity can be defined as:The logical and physical decomposition of things (for example, responsibilities andsoftware) into small, simple groupings (for example, requirements and classes,respectively), which increase the achievements of software-engineering goals.(Dictionary of Object Technology, Firesmith, Eykholt, 1995)• Another way to manage complexity is to break something that is large andcomplex into a set of smaller, more manageable pieces. These pieces can thenbe independently developed as long as their interactions are well understood.• Packages (described later in the course) support the definition of modularcomponents.2 - 20