Advanced database systems, Database Management System

Assignment Help:

Consider an information system designed for an online company which provides IT products and services

These include desktops, laptops, networking products, IT books, parts, and technical support etc. Purchases made through the online store can be collected from various outlets. Individual outlets are responsible for maintaining their respective stocks. The products and services are provided by contracted vendors. The information system can be viewed as a virtual shop which is capable to access all products and services in store across all outlets. Buyers are not aware of the existence of different outlets. In the virtual shop, a buyer can assemble a shopping cart and check out by paying in one transaction using Paypal. The buyer will designate a specific outlet for collection or request shipment.

     Briefly describe the system you use as the basis for your analysis.

Quantitative analysis

a. Make an estimation of the size of the product catalogue in your chosen product types. It should include both the number of records and the size of an individual record. State the basis of your estimate.

b. Make an estimation of the number of queries per day, and of the number of purchases. Estimate the size of two years of history of sales including both the number of records and the size of an individual record. State the basis for your estimates.


Related Discussions:- Advanced database systems

Calculate the joint probability, Consider the following frequency counts o...

Consider the following frequency counts of some itemsets in a transaction database r : freq({A}, r) = 0.405 freq({B}, r) = 0.510 freq({C}, r) = 0.303 freq({A

Define query optimization, Define query optimization. Query optimizatio...

Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.

What are temporary tables, What are temporary tables? Temporary tables...

What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.

What is conceptual schema, What is conceptual schema? The schemas at th...

What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.

Remove all transitive dependencies - dependency diagram, 1. Use the Invoice...

1. Use the Invoice table structure shown below to answer the following questions: a)  Draw the dependency diagram and identify the primary key and all dependencies, including al

What is a query tree, What is a query tree?     Ans:  A query tree, as ...

What is a query tree?     Ans:  A query tree, as well known as operator graph, is a tree data structure that corresponds to a relational algebra expression. It denotes the inpu

Explain instance and schemas, Explain Instance and schemas? Instances ...

Explain Instance and schemas? Instances and schemas: Databases changes over time as the information is deleted and inserted. The collection of information stored in database

Explain the three data anomalies, What are the three data anomalies that ar...

What are the three data anomalies that are similarly to take place as a result of data redundancy?  Can data redundancy be completely eliminated in database approach?  Why or why n

Describe the menu based interfaces for web clients browsing, Describe the M...

Describe the Menu based interfaces for web clients or browsing? Menu-Based Interfaces for Web Clients or Browsing - These interfaces present the user along with lists of option

What is sql server agent, What is SQL Server Agent? SQL Server agent pl...

What is SQL Server Agent? SQL Server agent plays a significant role in the day-to-day tasks of a database administrator (DBA). It is often overlooked as one of the major tools

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