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

Define and differentiate among ordered indexing and hashing, Define and dif...

Define and differentiate between ordered indexing and hashing. Ans: Ordered indexing: To gain fast random access to records in a file, we can make of an index structure. Every

Give two profit of reuse of code, Give two profit of Reuse of Code. Re...

Give two profit of Reuse of Code. Reusing the implementation . Place existing class directly inside a new class. The new class can be made up of any number and type of the oth

Normalization, Introduction In large projects, we can have many different ...

Introduction In large projects, we can have many different companies working together. Generally, the project or contract is awarded to one company (Principal Contractor), which

Implementing a data warehouse, (a) Data warehouse can be defined as "a sub...

(a) Data warehouse can be defined as "a subject-oriented, integrated, time-variant, non-volatile collection of data" in support of management's decision making process. Explain ea

Isolation or independence-transaction , Isolation or Independence : The iso...

Isolation or Independence : The isolation property shows that the updates of a transaction should not be visible till they are committed. Isolation assurance that the progresses of

What are the key features of oracle, What are the key features of Oracle? ...

What are the key features of Oracle? Key features of Oracle are as follows: • Read Consistency • Concurrency • Locking Mechanisms • Quiesce Database • RAC • Portability

What is 2nf, What is 2NF? A relation schema R is in 2NF if it is in 1NF...

What is 2NF? A relation schema R is in 2NF if it is in 1NF and every non-prime attribute A in R is fully functionally dependent on primary key.

Entity identifier key attributes, An entity type usually has an attribute w...

An entity type usually has an attribute whose values are distinct for every individual entity in the collection. Such an attribute is known as a key attribute and its values can be

Determine the method of choosing algorithms, Determine the method of Choosi...

Determine the method of Choosing Algorithms In general, most of operations are easy and have a satisfactory algorithm since description of what is to be done also shows how i

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