Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
Where does view definition stored? A view definition is permanently stored as part of the database.
Database systems have many opposite efforts ?
example of bank
Client Server Databases- The concept behind the Client/Server systems is simultaneous, cooperative processing. It is an approach that presents a one systems view from a user's vie
What are the several forms of identity? a) Value b) Name c) Built-in
Determine the benefits of Object oriented design OOD also gives reusability, which saves time, costs and productivity gains through direct mapping to properties of Object-Orie
recovey techniques based on deferred update and immediate update
Submission Requirements All answers must be computer generated (including text and diagrams). The hand-in version must include a header page (or with sufficient space)
Differance between internal and external schema? Internal and external schema: Internal Schema • Describes the physical storage structure • Uses a physical data model External
what is un ordered and ordered file managment?
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd