Draw mis erd chart | Information Systems homework help

Question 1 :Draw an ERD for the following problem with attributes, primary keys, cardinalities and participation constraints and specialization, if appropriate.

 

 

 

An information studies student wants to keep track of the following information.  A publishers publishes two kinds of publications: books and journals.  Any one publisher publishes at least one book and/or at least one journal.  Each book can be written by one or more authors and one author can write one or more books.  Each book and journal is characterized by one or more indexed keywords, which are represented by a keyword number and keyword.  Not every keyword is used by the journals, however.  Both books and journals have a unique number (such as ISBN# for a book and ISSN# for a journal), title and a publisher.  For books, the student tracks the published year, all author information and their institutions.  For journals, the student keeps the starting year first published, the number of issues to be published per year and the category of the journal (such as academic, newsletter, trade).  Each publisher has name, address and phone.  Each author has an ID number, name, address, phone, author’s affiliated institution and the address of the institution.  An author may be affiliated with more than one institution.  The student would like to keep only authors who are participating in writing at least one book and institutions that have such authors. 

 

                                                                                                                (15 Pts)

 

The second one is draw a new ERD chart copying this picture

 

 Q 3

 

 

 

 

 

 

5. Design an ER schema with attributes, primary keys, cardinalities and participation constraints if appropriate.  

 

 

 

 

 

 

 

For keeping track of information about votes taken in the U.S. House of Representatives during the current two-year

 

 

 

congressional session.  The database needs to keep track of each U.S. STATE’S Name (e.g., Texas, New York,

 

 

 

California) and include the Region of the state (whose domain is {North-east, Midwest, South-east, Southwest,

 

 

 

West}).  Each CONGRESSPERSON in the House of Representatives is described by his or her name, plus the

 

 

 

District represented, the StartDate,  when the congressperson was first elected, and the political  party to which he

 

 

 

or she belongs (whose domain is {Republican, Democrat, Independent, Other}).  The database keeps track of each

 

 

 

BILL (i.e., proposed law), including the BillName, the DateOfVote on the bill, whether the bill PassedOrFailed

 

 

 

(whose domain is {Yes, No}, and the Sponsor (the congressperson(s) who sponsored-that is , proposed-the bill).

 

 

 

The database keeps track of how each congressperson voted on each bill (domain of vote attribute is {Yes, No,

 

 

 

Abstain, Absent}).  Draw an ER schema diagram for this application.  State clearly any assumptions you make.

 

 

 

                                                                                                                (10 Points)

 

 

 

 

 

 

Get 20% Discount on This Paper
Pages (550 words)
Approximate price: -

Try it now!

Get 20% Discount on This Paper

We'll send you the first draft for approval by at
Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

Australia Assessments has gained an international reputation of being the leading website in custom assignment writing services. Once you give us the instructions of your paper through the order form, we will complete the rest.

Essays

Essay Writing Services

As we work towards providing the best custom assignment services, our company provides assignment services for any type of academic essay. We will help you develop professionally written essays that are rich in content and free from plagiarism.

Admissions

Admission and Business Papers

Our skilled team of professional writers will ensure that we help you craft a remarkable admission essay for your desired Master's program in your institution of choice. We won't stop there. Once you enter the job market, we will be available to secure you a position at your desired worksite by creating an outstanding portfolio or resume.

Editing

Editing and Proofreading

Our editorial team is always available for all editing and proofreading services. They check completed papers by our writers and also provide professional opinions to papers completed by our clients.

Coursework

Technical papers

We harbor professional academic writers with different qualifications in diverse academic fields. As such, we are capable of handling both simple and technical papers. Ensure that you provide us with correct and complete instructions in the order form.