Application System Modeling Data Modeling through ER Model
Context Level Diagram
Data Flow Diagram
1. It is a graphical tool for designing systems ,input ,process and output.
2. It represents flow of data through system.
3. It shows the processes ,data stores ,sources & destination entities .
4. The transformation of data from input to output through process is described logically.
5. The top level diagram is called context diagram. It contains single process .It gives a broad overview of the system under ....etc

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UNIFIED MODELING LANGUAGE



What Is a Model?

. A model is “a complete description of a system from a particular perspective.” A model is a simplification of reality.


Why Model?

.Modeling achieves four aims:
-Helps you to visualize a system as you want it to be.
-Permits you to specify the structure or behavior of a system.
-Gives you a template that guides you in constructing a system.
-Documents the decisions you have made.
.You ....etc

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Unified Modeling Language(UML)
Use Case
A use case is rendered as an ellipse in a use case diagram. A use case is always labeled with its name
Use Case (Cont’d)
An actor is rendered as a stick figure in a use case diagram. Each actor participates in one or more use cases.
Use Case (Cont’d)
Actors can participate in a generalization relation with other actors.
Classes
A class is a description of a set of
objects that share the same attributes,
operations, relationships, and semantics.
Gra ....etc

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Eran Kampf 2005


What is UML?

UML – Unified Modeling Language
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Definition

The Unified Modeling Language (UML) is a standard language for specifying, visualizing, constructing, and documenting the artifacts of software systems, as well as for business modeling and other non-software systems. The UML represents a collection of best engineering practices that have proven successful in the modeling of large and complex systems. The UML is a very important part of developing object oriented software and the software development process. The UML uses mostly graphical notations to express the design of softwar ....etc

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Definition
Ovonyx is developing a microelectronics memory technology called Ovonic Unified Memory (OUM). This technology is originally developed by Mr. Stanford Ovshinsky and exclusively licensed from Energy Conversion Devices (ECD) Inc. Ovonic unified memory -- its name is derived from ''Ovshinsky'' and ''electronic''. OVM is also known as phase change memory because it uses unique thin-film phase change material to store information economically and with excellent solid-state memory properties. It would be the replacement of conventional mem ....etc

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Definition
Ovonyx is developing a microelectronics memory technology called Ovonic Unified Memory (OUM). This technology is originally developed by Mr. Stanford Ovshinsky and exclusively licensed from Energy Conversion Devices (ECD) Inc. Ovonic unified memory -- its name is derived from ''Ovshinsky'' and ''electronic''. OVM is also known as phase change memory because it uses unique thin-film phase change material to store information economically and with excellent solid-state memory properties. It would be the replacement of conventional mem ....etc

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INTRODUCTION

We are now living in a world driven by various electronic equipments. Semiconductors form the fundamental building blocks of the modern electronic world providing the brains and the memory of products all around us from washing machines to super computers. Semi conductors consist of array of transistors with each transistor being a simple switch between electrical 0 and 1. Now often bundled together in there 10â„¢s of millions they form highly complex, intelligent, reliable semiconductor chips, which are small and cheap eno ....etc

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Unified Modeling Language



Introduction
The Unified Modeling Language (UML) emerged in response to a need for a notation (a visual language) that can express the behaviors of today’s interactive computing systems and that can guide in constructing them. In the UML framework, software design entails building an object-oriented representation of a system, as well as of its environment, e.g. its users (modeled as actors).
Interactive systems such as modeled ....etc

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We are now living in a world driven by various electronic equipments. Semiconductors form the fundamental building blocks of the modern electronic world providing the brains and the memory of products all around us from washing machines to super computers. Semi conductors consist of array of transistors with each transistor being a simple switch between electrical 0 and 1. Now often bundled together in there 10â„¢s of millions they form highly complex, intelligent, reliable semiconductor chips, which are small and cheap enough for prolifer ....etc

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