Revision as of 07:29, 21 October 2011

Introduction

Modern systems are large and complex - lots of interconnected components, distributed and heterogeneous.
OO is particularly useful to build such systems.
Remember OO is not always the best approach, but is useful in the right setting.

For the systems where the user is in control e.g. decision support systems, CRM's, enterprise systems. OO makes it easier to model such systems.
Systems where long term extensibility is important. Again OO's concepts make it easier to incorporate extensibility.

Quite simply, the use of classes and objects in developing software and systems.
OO Development implies using classes and objects throughout the construction process - requirements analysis, design, coding and testing.

Waterfall - doesnt work for large systems
Spiral - emphasizes risk and cost
RUP - Rational Unified Process from IBM Rational. User stories are constructed from which OO designs will be built.
Use cases are a way to write user stories.
Model Driven Development
- Aim to build software using abstract models. RUP is a kind of MDD.
- Models are at a higher level abstraction than code.
- UML is a popular modeling language.

@@ Line 16: / Line 16: @@
 * Quite simply, the use of classes and objects in developing software and systems.
 * OO Development implies using classes and objects '''''throughout''''' the construction process - requirements analysis, design, coding and testing.
+== Development Methods ==
+* Waterfall - doesnt work for large systems
+* Spiral - emphasizes risk and cost
+* RUP - Rational Unified Process from IBM Rational. User stories are constructed from which OO designs will be built.
+* Use cases are a way to write user stories.
+* Model Driven Development
+** Aim to build software using abstract models. RUP is a kind of MDD.
+** Models are at a higher level abstraction than code.
+** UML is a popular modeling language.
+== Modeling ==