Computers and Technology, 21.02.2020 01:00 trinity7265
Develop an EER (ER) model for the following situation using traditional EER notation. You have been hired by a new start-up company, IT Consulting β a company that consults with corporations to determine their security needs. You came up with the following set of entities, attributes and business rules:
CONSULTANT
2 types of consultants β business consultants and technical consultants. Business consultants first work with a company for security needs, technical consultants perform services according to specs developed by business consultants.
Attributes of Business consultants: Employee_ID (primary key), Lastname, Firstname, Street City, State, Zip, home phone, date of birth, age, years in business, type of business, degrees received
Attributes of Technical Consultant: Employee_ID (primary key), Lastname, Firstname, Street City, State, Zip, home phone, date of birth, age, technical skills,
degrees received
CUSTOMER
Customers are businesses that have asked for consulting services.
Attributes: Customer ID (primary key), Company Name, Company Street, Company City, Company State, Company Zip, Contact Name, Contact Title, Contact Telephone, Business type, number of employees
LOCATION
Customers can have multiple locations.
Attributes: Customer ID (primary key), Location ID (part of primary key), Location Street, Location City, Location State, Location zip, location telephone, building size (square feet)
SERVICE
Service is performed for a customer at one or more locations. Before services are performed as estimate (cost) is prepared.
Attributes: Service ID (primary key), description, cost, coverage, clearance required
Additional Business Rules (these can become entities in your tables if needed-probably will!!)
Estimates β attributes of Date, Amount, Business Consultant, services and customer
Services performed β attributes of date, amount, technical consultant, services, customer
Assume the following:
A customer can have many consultants providing many services. You want to track actual services performed and services offered β therefore, two relationships between customer, service and consultant.
Answers: 3
Computers and Technology, 22.06.2019 10:00
Businesses allocate resources for their best and most productive uses. the more a resource, the more costly it will be. a manufacturer that requires scarce and costly resources is likely to charge for its products.
Answers: 2
Computers and Technology, 23.06.2019 20:50
3.11.3 quiz: comparing and analyzing function typesquestion 4 of 102 pointswhat can you say about the y-values of the two functions f(x) = 3x2-3 andg(x)=2* - 3?
Answers: 2
Computers and Technology, 24.06.2019 21:00
Which device has the most limited computing functionality?
Answers: 1
Computers and Technology, 25.06.2019 03:00
Match the categories in the first column with examples in the second column. 1. good for watching movies 2. maximum power with small size 3. older style mobile devices that may or may not have internet connectivity tablet computer a.)pda b.)smart phone c.)tablet computer
Answers: 1
Develop an EER (ER) model for the following situation using traditional EER notation. You have been...
Biology, 31.03.2020 23:30
Health, 31.03.2020 23:30
History, 31.03.2020 23:30
Law, 31.03.2020 23:30
History, 31.03.2020 23:30
Mathematics, 31.03.2020 23:30
Social Studies, 31.03.2020 23:30
Mathematics, 31.03.2020 23:30
Social Studies, 31.03.2020 23:30
Mathematics, 31.03.2020 23:30
Mathematics, 31.03.2020 23:30