ISYS254 Lecture Notes - Lecture 4: Sequence Diagram, Decision Table, Function Overloading

• School: Macquarie University
• Department: Information Systems
• Course: ISYS254
• Professor: Charanya

Document Summary

Works well in situation where complicated system re undergoing continuous maintenance, adaptation and design. The unified modelling language (uml) is an industry standard for modelling object oriented systems. Recycling of programs parts should reduce the costs of development in computer based systems. Making a change in one object has a minimal impact on other objects. Persons, places, or thing that are relevant to the system being analysed. May be customers, items, orders and so on. May be gui displays or texts areas on display. Defines the set of shared attributes and behaviours found in each object in the class. Should have a name that differentiates it from all other classes. Instantiate is when an object is created from a class. An attribute describes some property that is possessed by all objects of the class. A method is an action that can be requested from any object of the class.