Entity-Relationship Diagrams (ERD) Data models are tools used in analysis to describe the data requirements and assumptions in the system from a top-down perspective. They also set the stage for the design of databases later on in the SDLC. There are three basic elements in ER models: Entities are the "things" about which we seek information. Attributes are the data we collect about the entities. Relationships provide the structure needed to draw information from multiple entities. Generally
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Functional Decomposition Diagram An analyst first must understand an organization’s business functions before he or she can begin developing information systems. The functional decomposition diagram (FDD) is a business planning tool that depicts the hierarchy of business functions‚ processes‚ and subprocesses within an organization that are later described in detail using process models (chapter 6). The exercise of breaking down‚ or decomposing‚ the business functions into processes makes complex
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surround the room which needs to be protected. First boundaries consist of LASER beam which sense the authentic entry in the system. The second part consists of camera‚ automatic E-MAIL sending and SMS sending process and automatic door locking system. Email sending process is the main feature of I-protector. When stranger enters in protected area‚ the laser beam is cut. The processing circuitry used sends the signal to processing unit or CPU. The CPU sends the email automatically with photo
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AACS1074 Programming Concepts and Design I Chapter 10: Writing a Complete Program Chapter 10: Writing a Complete Program Chapter Outline: 10.1 Programming Process 10.2 The Logical Flow Through a Program 10.3 Advantages of Modularization 10.1 • Programming Process The programming process is broken 6 major steps: 1. 2. 3. 4. 5. 6. Understand the problem Plan the logic Code the program Translate the program into machine language Test the program Put the program into production 1. Understand
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Question 1 Given the following business rules‚ create the appropriate Crow’s Foot ERD. a. A company operates many departments. b. Each department employs one or more employees. c. Each of the employees may or may not have one or more dependents. d. Each employee may or may not have an employment history. Question 2 The Hudson Engineering Group (HEG) has contacted you to create a conceptual model whose application will meet the expected database requirements for the company’s
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Turtle Diagram Inputs Supplier . Materials/Equipment Measure(s) Process Support Process(es) Outputs Customer Competence/Skills/Training 1 Turtle Diagram Process Steps that make up the process Explanation of how to do the process Could include Procedures and Work Instructions Or parts of Procedures and Work Instructions 2 Turtle Diagram Process Questions Does the process meet the requirements of the standard? Compare what is written to the standard How do you do the process? Have them
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the functioning of the Circular Flow of Income. The Circular Flow of Income is a model that indicates how money moves throughout an economy. This model was mainly in use up to the Second World War and is a model developed by classical (monetarist) economists. Many models have been developed based on The Circular Flow of Income. The Circular Flow of Income consists of two parts‚ the inner circular flow and injections and withdrawals. In the inner circular flow there are two basic economic institutions
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Chapter 5: Flow Rate and Capacity Analysis 5.1 Objective Chapter 3 introduced the three basic building blocks of process flow namely the (average) flow time‚ (average) flow rate and (average) inventory. It is followed by a sequence of three chapters‚ 4‚ 5 and 6‚ which examine each one of these measures individually. Chapter 5 is concerned with flow rate analysis and issues of capacity. The major managerial concept discussed in the in the chapter is that of the bottleneck. We use the notion
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Cloud Server with OpenFlow: Load Balancing Surya Prateek Surampalli Information Technology Department‚ Southern Polytechnic State University ssurampa@spsu.edu Abstract—in high-traffic Internet today‚ it is often desirable to have multiple servers that represent a single logical destination server to share the load. A typical configuration comprises multiple servers behind a load balancer that would determine which server would serve the request of a client. Such equipment is expensive
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The Entity Relationship Diagram (ERD) depicts a conceptual data model that incorporates some of the important scientific information about the real world. It adopts a natural view that the real world consists of entities and relations (Chen‚ 1976). One objective of the ERD is to create a simple‚ easy to understand and conveniently presented data model consisting of entities‚ attributes‚ relationships and cardinalities. The model serves as tool for database design‚ where the model can facilitate communication
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