#1. Entity Relationship Diagram #2. a. & b. One Room can be designated only one Room Type‚ whilst a particular Room Type can be assigned to several rooms (i.e. there may be many rooms that have double beds). Therefore‚ Room has a one-to-one relationship with RoomType and RoomType has a one-to-many relationship with Room. From the table‚ it can be seen that a particular room can only be designated as belonging to one type / category‚ thus confirming that Room RoomType has
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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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1.0 Explanation of Use Case “Use Case” is a system engineering or software term that portrays how a customer or user uses a system to complete a certain task. In other word‚ “Use case” is act as a software modeling method that defines the logic to be implemented and the outcome of the error in the result can be encountered earlier. An interaction between external actors is defined by use cases to attain particular goals. Three main elements that construct a use case are: • Actors: Actors are the
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Parasitic us; this is a rare type of craniopagus occurring in about 4 to 6 of 10‚000‚000 births. In Craniopagus Parasitic us‚ a twin head with an undeveloped body is attached to the head of a developed twin. There are fewer than a dozen documented cases of this type of conjoined twin in the literature. Most infants with this condition are still born‚ or die shortly after birth. Manar was born with this parasitic head‚ but only Manar had a heart and the parasite was feeding of blood of Manar With
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ACTIVITY DIAGRAMS IN UML Activity Diagrams WHAT IS AN ACTIVITY DIAGRAM? Activity diagrams consist of activities‚ states and transitions between activities and states. Activity diagrams combine ideas from event diagrams‚ Petri nets and state modeling techniques An activity diagram is a special case of state charts in which most or all states are activity states and most or all transitions are triggered by the completion of activities in the source state. What is an Activity Diagram? The
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advantages and disadvantages of eliminating the use of appraisal forms and ratings. Appraisals are used by companies to identify employees‚ strengths and weaknesses. This process occurs annual or semi-annually. The appraisal provides employers with an assessment of how the employee does their job‚ interacts in a team environment‚ how they handle responsibilities‚ training and development opportunities‚ and areas of improvement. According to Mathis & Jackson (2008)‚ “Organizations generally use performance
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Gas Station Project * Main * My Books * C/C++ Programs * Java Programs * Perl/PHP/Ruby Programs * Team Projects * Various Projects Program Description This was a semester-long project from my software engineering class at UNO. The goal of this project was to create a gas station management software package using the classic waterfall development lifecycle. Some of the requirements that needed to be met were: the ability to control gas pumps‚ keep track of in-store
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Figure (2-3): Schematic Diagram of a Micro-Turbine Advantages: •Micro turbine unit costs around $1500 to $2500 per installed kW. That could lead to niche applications in areas with high-energy costs for power quality‚ peak shaving or replacement energy. They can run on a variety of fuels‚ including natural gas‚ propane‚ and fuel oil. • The other advantages over other types of DG technologies are a small number of moving parts‚ compact size‚ lightweight‚ good efficiencies in co-generation‚ low
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The City Shaped; The City as Diagram In the Tired chapter‚ “The City as Diagram”‚ he explains that the design intent that determines the eventual form of certain cities. With the contemporary Eco village of Arcosanti and the Medieval period Palmanova in Italy‚ he contrasts two distinct forms‚ tracing their diagrammatic evolution. The diagram of the two cities is very specific‚ addressing their intent; responding to the landscape the former and to the militaristic needs and ideas in the latter
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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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