Create a customer database and apply queries, Database Management System

Assignment Help:

For the question given below, you are required to submit design and implementation documentation as described over the page. Design, implement (in Java), test and document a set of classes for use in a program to manage a (prototype) online dating service. The service manages a list of customers.

Customers have login (names) and passwords.

A customer is either an advertiser or a responder.

All customers also have some personal details including gender, age and income.

An advertiser has a text advert, a description of partner sought and a list of reply messages.

A description of partner sought has a gender, range of ages and range of incomes.

A reply message has an owner (which is a responder) and some text.

When new customers are created, ie when someone has paid and is accepted, then they choose a new login and they are given their own default password. (We don't encrypt passwords in this prototype.)

When a new advertiser is created (when they log in) they enter the required details and they begin with no replies recorded for them.

When a new responder is created they enter their details. When a responder logs in for the first time or subsequently, the program finds all the matching descriptions sought by advertisers. The responder is then able to choose to send reply messages to any of those matching advertisers.

When an advertiser logs in later they get presented with their list of reply messages, old or new, which they can delete or keep to re-read. We assume that reply messages' text are supposed to contain other ways for advertisers to contact responders (eg, phone, email) so there is no need for this service to pass messages that way.

There should be a class to manage the list of customers. The final product will use a database to store customer data but the prototype for this assignment just needs to manage a datastructure.

It does NOT even have to store information in an external file.

Design and implement enough functionality in the classes to allow the operation of the following test program (which you also design, implement, test, document):

The client program should do the following (and explain on the screen as it does each step)

a) create a list of 6-7 different customers of both types with made-up details built in to the client program (Alternatively, get input from the user using the java.util.Scanner class),

b) get some matches for a responder, choose one match and send the match a message, then log in that advertiser to get the message,

c) add a new customer to the dating service,

d) delete an existing customer from the dating service,

e) display the details of all advertisers registered with the service,

f) display the details of all responders registered with the service,


Related Discussions:- Create a customer database and apply queries

What is a candidate key, What is a candidate key? Minimal super keys ar...

What is a candidate key? Minimal super keys are known as candidate keys.

Describe the concepts of structural semantic data model, Question 1 List a...

Question 1 List and explain various Normal Forms. How BCNF differs from the Third Normal Form and 4th Normal forms? Question 2 Describe the concepts of Structural Semantic Da

Describe the objective of structural diagrams, Describe the objective of St...

Describe the objective of Structural Diagrams The main objective of structural diagram is to visualize, construct, specify and document static aspects of a system. Their eleme

Benefits and drawbacks of sequential file organisation, Benefits of Sequent...

Benefits of Sequential File Organisation It is quick and efficient when dealing with huge volumes of data that require being processed periodically (batch system). Dra

Nested relational model, what is Nested relational model? Explain with exam...

what is Nested relational model? Explain with examples.

The maximum no of key fields that can be used in a header, The Maximum no o...

The Maximum no of key fields that can be used in a header is?? 50

Define control files, Control Files : The redo and control files logs supp...

Control Files : The redo and control files logs support the rest of the architecture. Every database must have at least one control file, although you have more than one to guard

Describe relational model, Describe relational model? Structure of rela...

Describe relational model? Structure of relational data base Basic structure Database schema Keys Schema diagram Query languages

Determine the concept of process, Determine the concept of Process Pro...

Determine the concept of Process Process: A process transforms the data values. It is represented as ellipse containing a description of transformation. Each procedure has a

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd