What are the functions of an information systems

Assignment Help Other Subject
Reference no: EM132754

QUESTION 1

1(a) You are about to undertake the development of a system for a small business

Which System Development Life Cycle methodology would you choose and why?

(b) Compare and contrast (using diagrams) between the traditional system lifecycle and the Rapid Application Development Model

(c ) What are the strengths and limitations of the traditional system lifecycle

( d)(i) What do you understand by Feasibility Study?

(ii) What is the difference between technical feasibility and operational feasibility?

(e) Define the term Joint Application Development

QUESTION 2

(a) What is the difference between a record and a file?

(b) Draw the hierarchy of data

(c) What is the difference between a centralized system and decentralized system?

(d) Give one advantage and one disadvantage of a centralized system?

(e) Give one advantage and one disadvantage of a decentralized system

(f) What is a distributed system?

(g) Give one advantage and one disadvantage of a distributed system?

(h) What is the difference between a data definition language (DDL) and a data manipulation language (DML) ?

QUESTION 3

(a) What is an electronic market?

(b) The electronic job market offers many advantages for both the job seeker and the employer. Briefly state the main advantages for both

(c) List three major categories of Electronic Commerce

(d) What is an Electronic Data Interchange (EDI)?

(e) List 5 benefits of EDI

(f) What is an encryption?

(g) Describe how Peter and Mary can use encryption in the following scenario. Peter wants to send a message to Mary so that when Mary receives the message, Mary knows for sure that only Peter and no

one else could have sent the message

QUESTION 4

(a) What is the difference between an information system and a strategic information system?

(b) What are the functions of an information systems?

(c) What activities convert raw data to usable information in information systems? What is their relationship to feedback?

(d) There are four levels of an organization and Information systems are built to serve each level. Write down which type of information system is needed for which level

(e) Describe the relationship between the various types of information systems

QUESTION 5

(a) The types of cabling that are commonly used in LAN network are coaxial cables, twisted pairs and fiber optic cables. Compare and contrast each of them

(b) What are the main reasons for installing a network?

(c) State 5 methods of connecting a LAN to the Internet Gateway and explain each method in details

(d) What is the difference between an analog signal and a digital signal?

Reference no: EM132754

Previous Q& A

  Purpose the statement of activity for the society

Purpose the Statement of Activity for the Society

  Calculate a sales mix variance and sales quantity variance

Calculating a sales mix variance and sales quantity variance

  Evaluate the cost of abnormal rework and spoilage

Evaluate the cost of abnormal rework and spoilage, goods completed, and ending work in process.

  Write the journal entry to record tanner-unfs investment

Write the journal entry to record Tanner-UNF's investment in the bonds

  What is the maximum loan that the company will need

What is the maximum loan that the company will need between January and June?

  Analyze reporting needs for private sector

Prepare a merchandise purchases budget for the months of JUL

  Prepare a merchandise purchases budget for the months of jul

Prepare a merchandise purchases budget for the months of JUL

  What is difference between a settlement and a curtailment

Determine the current year's overhead application rate

  Determine the current years overhead application rate

Determine the current year's overhead application rate

  What is the total impact on werner''s net income

What is the total impact on Werner's net income for the quarter ended March 31, 2013, as a result of this forward contract hedge of a firm commitment?

Reviews

Write a Review

 

Similar Q& A

  What is emotional intelligence

What is emotional intelligence. Why is emotional intelligence so important in training.

  A project report on vulnerability assessment & penetration t

The implementation of project involves hosting a web server and to check different vulnerabilities present on it with the help of different tools.

  Textbook language evaluation

Discussed the ways that phonology, orthography, morphology, and syntax can be used in lesson planning and teaching ELLs.

  Describe the specific goals of green globe 21

The Green Globe (21) programme was established by the World Travel and Tourism Council (WTTC) with the aim of implementing the Agenda 21 principles defined at the Rio Earth Summit (1992). It is now acclaimed as the most comprehensive accreditation..

  Love canal case

The report analyzes the Love Canal disaster case of in Niagara Falls,

  The main safe traffic considerations within the workplace

Outline the main safe traffic considerations within the workplace List the main legal provisions as per OSHA 2005 relating to vehicle lifts

  What is the air concentration relative to the osha pel

What is the requirement before the use of the sampling pump, Give three ways how it can be achieved What is the air concentration relative to the OSHA PEL, Express your answer in ppm List down five requirements of a sample train check list

  Overview of the u.s. health care system

Overview of the U.S. Health Care System

  Field component project

The purpose of project is to allow students to become familiar with the evaluation procedures used in the school district or school where she/he is currently employed.

  Paper on the movie high plains drifter by clint eastwood

Write a paper based on the movie High Plains Drifter by Clint Eastwood.

  Pest analysis of accor gropup of hotels

The focus synthesises current strategic practices and should take the format of a realistic business plan including current issues for managers

  Prepare shipman enquiry report

Prepare Shipman Enquiry report

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