MIDTERM EXAMINATION
Spring 2010
CS507- Information Systems
Time: 60 min
M a r k s: 38
Question No: 1 ( M a r k s: 1 ) http://vuzs.net
Medium size organizations usually have simple management structure than those of small organizations.
True
False
Small organizations usually have simple management structure.
Question No: 2 ( M a r k s: 1 ) http://vuzs.net
Information should be tailored in accordance with the organization's culture and structure.
True
False
Information should be tailored in accordance with the organization’s culture and structure.
Question No: 3 ( M a r k s: 1 ) http://vuzs.net
---------- needs data preparation which may involve filtering data and data
transformations, selecting subsets of records.
Model Building
Deployment
Exploration
Exploration includes data preparation which may involve filtering data and data transformations, selecting subsets of records.
Question No: 4 ( M a r k s: 1 ) http://vuzs.net
Decision making is the cognitive process of selecting a course of action from among --------- alternatives:
Multiple
Double
Triple
Decision making is the cognitive process of selecting a course of action from among multiple alternatives.
Question No: 5 ( M a r k s: 1 ) http://vuzs.net
The study of business problem domain used to recommend improvements and specify the business Requirements for the solution is called:
System Analysis
System Design
Risk Management
Risk Analysis
System analysis can be defined simply as: “The study of business problem domain to recommend improvements and specify the business requirements for the solution.”
Question No: 6 ( M a r k s: 1 ) http://vuzs.net
In which of the following Models it is Difficult to convince some customers that the evolutionary approach is controllable?
Spiral
WaterFall
Incremental
Iterative
Spiral Model weaknesses:
• Difficult to convince some customers that the evolutionary approach is controllable.
• Needs considerable risk assessment.
• If a risk is not discovered, problems will surely occur.
Question No: 7 ( M a r k s: 1 ) http://vuzs.net
Partial systems are successively built to produce a final total system in the following model:
WaterFall
RAID
Iterative Model
Incremental Model
Characteristics of the Incremental Model
• The system development is broken into many mini development projects
• Partial systems are successively built to produce a final total system.
• Highest priority requirements tackled early on.
• Once an incremented portion is developed, requirements for that increment are frozen.
Question No: 8 ( M a r k s: 1 ) http://vuzs.net
Decision making is the cognitive process of selecting a course of action from
among multiple alternatives
True
False
Decision making is the cognitive process of selecting a course of action from among multiple alternatives.
Question No: 9 ( M a r k s: 1 ) http://vuzs.net
Using a decision support system involves an interactive analytical modeling process
True
False
Using a decision support system involves an interactive analytical modeling process.
Question No: 10 ( M a r k s: 1 ) http://vuzs.net
Source of information is generally categorize in primary, secondary and _______
Proximity
Initially
Tertiary
Sources of information are generally categorized as primary, secondary or tertiary depending on their originality and their proximity to the source or origin.
Question No: 11 ( M a r k s: 1 ) http://vuzs.net
Commentaries are the example of _________ sources.
Primary
Tertiary
Secondary
Some examples of secondary sources:
1. bibliographies (may also be tertiary)
2. biographical works
3. commentaries
Question No: 12 ( M a r k s: 1 ) http://vuzs.net
Board of Directors are elected from ___________
Employees
Customers
Share holders
The members of the Board of Directors are elected by a majority vote of shareholders at the annual general meeting.
Question No: 13 ( M a r k s: 1 ) http://vuzs.net
_______ is a group of elements that are integrated with common purpose of objective.
Procedure
System
Firm
A system is a group of elements that are integrated with the common purpose of achieving an objective.
Question No: 14 ( M a r k s: 1 ) http://vuzs.net
Word Processing is an example of the following system:
Office automation system
Decision support system
Word processing
Question No: 15 ( M a r k s: 1 ) http://vuzs.net
__________ is known as father of warehouse.
Stephen hawking
Bill gates
Bill Inmon
Decision Support Systems was defined by Bill Inmon, father of data warehouse.
Question No: 16 ( M a r k s: 1 ) http://vuzs.net
The Iterative model emphasizes the need to go back and reiterate earlier steps a number of times as the project progresses.
True
False
The spiral model emphasizes the need to go back and reiterate earlier steps a number of times as the project progresses
Question No: 17 ( M a r k s: 1 )
Environment is a collection of different elements. List them.
Answer:
Elements of Environment:
It is a collective reference made to the following factors
• Legal
• Ethics
• Economic
• Social
• Technological
Question No: 18 ( M a r k s: 1 )
Enlist the categories of the Support system
Answer:
Support systems can be classified into two categories:
• Office automation systems
• Decision support systems
Question No: 19 ( M a r k s: 2 )
Identify any two reasons to use Incremental Models.
Answer:
1. Incremental Models: In incremental models, software is built not written. Software is constructed step by step in the same way a building is constructed. The products is designed, implemented, integrated and tested as a series of incremental builds, where a build consists of code pieces from various modules interacting together to provide a specific functional capability and testable as a whole.
2. Incremental Model: The incremental model is a method of software/ Information System development where the model is designed, implemented and tested incrementally until the product is finished. It involves both development and maintenance. This model combines the elements of the waterfall model with the philosophy of prototyping.
Question No: 20 ( M a r k s: 3 )
Define CAD?
Answer:
Computer Aided Design (CAD): “It is a system that enables drawings to be constructed on a computer screen and subsequently stored, manipulated and updated electronically.”
.
Question No: 21 ( M a r k s: 5 )
Discuss the attributes on which Organizational Information Requirements depends
Answer:
Organizations have various attributes which distinguish them from each other. No two organizations are similar in all respects. There have to have certain distinctive lines keeping them unique from each other.
Information requirements keep varying in accordance with
• Size of organization
• Its structure
• The Culture it follows
• Decision Making Structures
• Interested parties both internal and external
Question No: 22 ( M a r k s: 10 )
What are the components of the Expert System and how they are different from the neural network?
Answer:
Components of an Expert System: There are four main components of Expert systems User Interface: to enable the manager to enter instructions and information into an expert system to receive information from it.
• Knowledge Base: it is the database of the expert system. It contains rules to express the logic of the problem.
• Inference engine: it is the database management system of the expert system. It performs reasoning by using the contents of the knowledge base.
• Development engine – it is used to create an expert system.
What is the Neural Network ?
Neural Network: Hardware or software that attempt to emulate the processing patterns of the biological brain. It is a device, modeled after the human brain, in which several interconnected elements process information simultaneously, adapting and learning from past patterns.
The Difference of Neural Network and Expert System
Neural Network vs. Expert System
Expert systems seek to model a human expert’s way of solving problems. They are highly specific to seeking solutions. Neural networks do not model human intelligence. They seek to put intelligence into the hardware in the form of generalized capability to learn.
