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The Globetrotters Club is organized into chapters. The president of a chapter can never serve as the president of any other chapter, and each chapter gives its president some salary. Chapters keep moving to new locations, and a new president is elected when (and only when) a chapter moves. This data is stored in a relation G(C,S,L,P), where the attributes are chapters (C), salaries (S), locations (L), and presidents (P). Queries of the following form are frequently asked, and you must be able to answer them without computing a join: "Who was the president of chapter X when it was in location Y ?"
1. List the FDs that are given to hold over G.2. What are the candidate keys for relation G?3. What normal form is the schema G in?4. Design a good database schema for the club. (Remember that your design must satisfy the stated query requirement!)5. What normal form is your good schema in? Give an example of a query that is likely to run slower on this schema than on the relation G.6. Is there a lossless-join, dependency-preserving decomposition of G into BCNF?7. Is there ever a good reason to accept something less than 3NF when designing a schema for a relational database? Use this example, if necessary adding further constraints, to illustrate your answer.
Produce a set of CRC cards, a UML diagram, and a set of javadoc comments (detailed JavaDoc only for each method created, no coding required).
Beginning with 'make a call' and 'end a call', Sketch use-case diagrams to show participants in these use-cases. Then draw other use-cases to say what other significant interactions these participants might have with each other, or with other part..
Build an Entity Relationship Diagram(ERD) for the following hospital scenario. For your Patient entity show its attributes . Highlight the key attribute in red.
Create either pseudocode or a flowchart for a program that does the following: Prompt the user to enter a sales tax rate. Prompt the user to enter a price.
Prepare a data flow diagram for computing the volume and surface area of a cylinder. Inputs are height and radius of cylinder.
Design an entity relationship diagram for the case, explaining any suppositions you deem essential for atered or non-catered accommodation at the centre.
Create a context diagram for new system. Create a diagram 0 DFD for new system. Write brief memo that describes the significance of leveling a set of DFDs.
Draw a flowchart to accept two number and any one of the follwing characters: +,-,*, and / . based on the character entered, the number should be added.
Design an E/R diagram for the following situation: Doctors prescribe drugs for patients. A given doctor can prescribe many drugs for a certain patient.
A context diagram, also called a Data Flow Diagram (DFD), documents the scope of the new customer support system. It focuses primarily on output from the system.
Identify computing devices, which could be used to support Your Improved Process
Draw a flow chart or write the pseudocode for an application that allows a user to enter a credit card balance. Interest rate is 1 percent per month.
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