1)Design an ER schema 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. STATEs Name (e.g., Texas, New York, California) and include the Region of the state (whose domain is {Northeast, Midwest, Southeast, Southwest, West}). Each CONGRESS_PERSON in the House of Representatives is described by his or her Name, plus the District represented, the Start_date 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 Bill_name, the Date_of_vote on the bill, whether the bill Passed_or_failed (whose domain is {Yes, No}), and the Sponsor (the congressperson(s) who sponsoredthat is, proposedthe bill). The database also 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.

2)Consider the ER diagram shown in Figure 3.22 for part of a BANK database. Each bank can have multiple branches, and each branch can have multiple accounts and loans. a. List the strong (nonweak) entity types in the ER diagram. b. Is there a weak entity type? If so, give its name, partial key, and identifying relationship. c. What constraints do the partial key and the identifying relationship of the weak entity type specify in this diagram? d. List the names of all relationship types, and specify the (min, max) constraint on each participation of an entity type in a relationship type. Justify your choices. e. List concisely the user requirements that led to this ER schema design. f. Suppose that every customer must have at least one account but is restricted to at most two loans at a time, and that a bank branch cannot have more than 1,000 loans. How does this show up on the (min, max) constraints?

3)Design a database to keep track of information for an art museum. Assume that the following requirements were collected: The museum has a collection of ART_OBJECTS. Each ART_OBJECT has a unique Id_no, an Artist (if known), a Year (when it was created, if known), a Title, and a Description. The art objects are categorized in several ways, as discussed below. ART_OBJECTS are categorized based on their type. There are three main typesPAINTING, SCULPTURE, and STATUEplus another type called OTHER to accommodate objects that do not fall into one of the three main types.