Tutorial Week 7 - Class and Entity-Relationship Diagrams 1 Class Diagrams and Entity Relationship Diagrams (ERD) Class diagrams and ERDs both model the structure of a system. Class diagrams represent the dynamic aspects of a system: both the structural and behavioural features. ERDs‚ depicting only structural features provide a static view of the system. 2 Class Diagrams 2.1 Elements of a class diagram: 2.1.1 class A class is a general concept (represented as a square box). A class defines
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5. System design 5.1 Use case diagram A use case diagram at its simplest is a representation of a user’s interaction with the system that shows the relationship between the user and the different use cases in which the user is involved. A use case diagram can identify the different types of users of a system. The different use cases and will often be accompanied by other types of diagrams as well. Figure 5.2: Use case Diagram 5.3 Use Case Analysis 5.3.1 Activity Diagram The following activity
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Question 1: Draw a flowchart for the following Medical Services: The following are the activities that take place while providing the services to the patients in XYZ Hospital: The patient arrives at the hospital and enquires at the reception The staff checks whether the patient is new or existing‚ i.e.‚ Patient in the system If the patient is New‚ then the patient needs to complete the paper work If the patient is existing then‚ checks whether Nurse is available If Nurse Not available then
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Reverend John Hale A scholar from Beverly‚ Reverend Hale comes to Salem on Reverend Parris ’ request to investigate supernatural causes for Betty Parris ’ suspicious illness and thus instigates the rumors of witchcraft. Hale approaches the situation precisely and intellectually‚ believing that he can define the supernatural in definitive terms. Despite his early enthusiasm for discerning the presence of witchcraft in Salem‚ Hale soon grows disillusioned with the witchcraft accusations that abound
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Problem Solutions 1. Use the following business rules to create a Crow’s Foot ERD. Write all appropriate connectivity’s and cardinalities in the ERD. 1.a. A department employs many employees‚ but each employee is employed by one department. 1.b. Some employees‚ known as “rovers‚” are not assigned to any department. 1.c. A division operates many departments‚ but each department is operated by one division. 1.d. An employee may be assigned many projects‚ and a project may have many employees
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I believe … I believe … Teaching Resources For The Nicene Creed & The Apostles’ Creed Teaching Resources For The Nicene Creed & The Apostles’ Creed Teacher Background What is a Creed? A creed is a set of words. It says what a person or group believes in‚ and helps express the identity of the group. It is a faith put into words. Throughout its long history‚ the Catholic Church has pursued a deeper understanding of Jesus and his message. Driven by the human need to name
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G. NARAYANAMMA INSTITUTE OF TECHNOLOGY & SCIENCE (For Women) DEPARTMENT OF IT Principles of Programming Language –Operator precedence rules? –Operator associativity rules? –Order of operand evaluation? –Operand evaluation side effects? –Operator overloading? –Type mixing in expressions? Arithmetic Expressions: Operators A unary operator has one operand A binary operator has two operands A ternary operator has three operands Arithmetic Expressions: Operator Precedence Rules The operator precedence
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time for activities that improve the mind‚ such as reading and doing word puzzles. Other people feel that it is important to rest the mind during leisure time. • You should write at least 250 words. • You should spend about 40 minutes on this task. In generally‚ people agree that leisure time is important for everyone. We feel tried ourselves after the work‚ the study‚ than we want to spend little time for doing what we want. However‚ everyone like to do another types of activity. Some people
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organisation is accurate and efficient and delivered in a timely and cost effective manner and that the human resource data is managed professionally. The behaviours describe in detail how a human resources professional needs to carry out their activities. Each behaviour is described at four bands of professional competence. There are eight behaviours which I have listed below:- 1. Curious – Is future focused‚ inquisitive and open minded; seeks out evolving and innovative ways to add value
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review the Cause and Effect Diagram‚ better known as the Fishbone Chart‚ why and when you would use this method‚ and examples of real experiences with this diagram. Fishbone Chart A Japanese quality control statistician‚ Dr. Kaoru Ishikawa‚ invented the fishbone diagram. It may be referred to as the cause and effect‚ fishbone‚ or Ishikawa diagram. It is an analysis tool that provides a way to look at effects and causes that contribute to those effects. This diagram has been used in Japan‚ to
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