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Suppose Alice with a Web-based e-mail account (such as Yahoo! mail or Hotmail) sends a message to Bob, who accesses his mail from his mail server using POP3. Draw a diagram displaying how the message gets from Alice's host to Bob's host. Be sure to list the series of application-layer protocols that are used to move the message between the two hosts.
Write the business rules that are reflected in the ERD.(Note that the ERD reflects some simplifying assumptions. For example,each book is written by only one author.
Draw and ERD for this situation. What attribute or attributes did you designate as the identifier for the STUDENT entity? Why?
Write structured english for clyde's narrative of the reimbursment policies. Write structure English, draw decision table and draw decision tree.
Design Context diagram, level0 and level1 (if need) for the following: The user submit her/his name to the system, the system will tell the user if he is a boy or a girl or don't know by looking up his name in database
Convert table to 3NF. Represent your answer in DBDL. Give table name and fields. Underline primary key. Sketch entity-relationship diagram showing all relationships.
Create a class diagram for following problem. A company has a number of employees. Attributes of employee include employeeID (primary key), name, address, and birthdate.
A restaurant is not doing well. It is doing poorly as customer patronage is low. Use Ishikawa diagram to investigate the causes of the problem.
Create a 'Weather' object using the no-argument constructor
Identify all the important concepts represented in the library database case study described here. In particular, identify the abstraction of classification entity types.
Draw an E/R diagram for the following situation: Doctors prescribe drugs for patients. A given doctor can prescribe many drugs for a certain patient.
Deisgn Risk Assessment Policy, that identifies risks associated with an organization's infrastructure. A risk assessment template may be downloaded from Sans: http://www.sans.org/resources/policies/#template
Illustrate how are RFID systems used in inventory control and supply chain management? What kinds of relationships are possible in relational database?
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