In this tutorial I finish covering the GRASP patterns I covered previously here GRASP Tutorial.
This time talk about Polymorphism, Indirection and Protected Variations. They show how you can create flexibility in your system in different ways by having different classes implement interfaces. I also talk about Pure Fabrication, which shows the importance of separating out code that impedes low coupling. Code follows the video to help you.
In the last tutorial, I showed you how to create a complicated sequence diagram for our ATM software. In this tutorial, I’m going to simulate the process of creating a sequence diagram in a group atmosphere.
I’ll improve the last design, while explaining what I’m thinking. I’m also trying to teach how to think through a programming problem while creating the sequence diagram.
Both new sequence diagrams follow the video to help you learn. Continue reading Object Oriented Design 6
In this video I continue building my ATM software using Object Oriented Design principles. If you missed the beginning of this tutorial, the previous videos are here.
If you want to learn everything about Sequence Diagrams, I have you covered as well. I take you through the creation of a sequence diagram using all of the diagrams I made before it. The sequence diagram made in the video follows the video to help you learn. Continue reading Object Oriented Design 5
Welcome to my 3rd tutorial on Object Oriented Design. In this part of the tutorial, I’ll cover Iterative Development, The Unified Process and Usage Cases.
Unlike the waterfall process for object design, with the iterative process programming starts before all of the requirements are expected. The Unified Process is a popular IDP which focuses on high risk / value parts first before creating full requirements for the program.
A large Usage Case follows the video to help you.
In the previous part of my Object Oriented Design Tutorial, I showed you how to build a Use Case, Object Model, Sequence Diagram and Class Diagram from scratch.
In this tutorial, I show you how to turn those diagrams into code and a working program. This is the process a person goes through to create excellent Object Oriented Designs. The code follows the video along with the digrams from last time.
Welcome to my Object Oriented Design Tutorial! I cover a ton of things in the video below.
The goal of this tutorial is to teach you how to create excellent OO designs. In this tutorial, I start off with a programming idea and walk you through the process of creating a Use Case, Object Model, Sequence Diagram and Class Diagram.
If you need help understanding sequence diagrams look here. The diagrams that follow the video should help you along though.