IT323 Project Phase#2

 - Data Design ER diagram Data dictionary tables. Database schema

- Interface Design User Interface Design overview Navigation Hierarchy User function (or use case) Interfaces

Modular Decomposition/Structure Chart Sub-systems are decomposed into modules. There are two modular decomposition models: An object model where the system is decomposed into interacting object. A pipeline or data-flow model where the system is decomposed into functional modules which transform inputs to outputs.

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(Chat Room System ) Example ..