MIDTERM EXAMINATION
Spring 2010
CS507- Information Systems
Time: 60 min
M a r k s: 40
Question No: 1 ( M a r k s: 1 ) http://vuzs.net
A hierarchical organization is structured in a way such that every entity in the organization, except one, is subordinate to a single other entity.
► True
► False
A hierarchical organization is an organization structured in a way such that every entity in the organization, except one, is subordinates to a single other entity.
Question No: 2 ( M a r k s: 1 ) http://vuzs.net
Systems have collection of predefined ----------------------related to each other in a sequenced logical manner in order to collectively achieve the desired results.
► Procedures
► Sequences
► Policies
Systems have collection of predefined procedures related to each other in a sequenced logical manner in order to collectively achieve the desired results.
Question No: 3 ( M a r k s: 1 ) http://vuzs.net
The results given by the system after the process has been performed on the data being input to the system called as------------------.
► Output
► Input
► Processing
Output elements: The results given by the system after the process has been performed on the data being input to the system.
Question No: 4 ( M a r k s: 1 ) http://vuzs.net
Which type of decision is one for which there may be several "right" answers and there is no precise way to get a right answer?
► Structured
► Unstructured
► Semi-Structured
A non structured decision is one for which there may be several "right" answers, and there is no precise way to get a right answer. Most decisions have structured and non structured elements.
Question No: 5 ( M a r k s: 1 ) http://vuzs.net
Which of the following level is formulation of new sales products, and identifying new sales opportunities?
► Operational
► Managerial
► Strategic
Strategic Level: Formulation of new sales products, and identifying new sales opportunities.
Question No: 6 ( M a r k s: 1 ) http://vuzs.net
Every transaction that an organization undertakes has a financial impact, to be recorded and reported by the accounts & finance department.
► True
► False
Every transaction that an organization undertakes has a financial impact, to be recorded and reported by the accounts & finance department.
Question No: 7 ( M a r k s: 1 ) http://vuzs.net
The procedures to follow when decision is needed can be specified in advance.
► True
► False
Structured decisions: operational-procedures to follow when decision is needed can be specified in advance.
Question No: 8 ( M a r k s: 1 ) http://vuzs.net
Companies are investing in data-driven decision support application frameworks to help them respond to
• Changing market conditions
• Customer needs
► TRUE
► FALSE
Question No: 9 ( M a r k s: 1 ) http://vuzs.net
Information that is outdated, inaccurate, or hard to understand has much less value
► TRUE
► FALSE
Question No: 10 ( M a r k s: 1 ) http://vuzs.net
In __________ final product is intangible
► Service sector
► Manufacturing Sector
► Trading sector
Service Sector: Final product is intangible, so information is critical at various steps, e.g. preparation, delivery and customer.
Question No: 11 (M a r k s: 1 ) http://vuzs.net
_____ is a set of defined set of instructions aimed to achieve goals
► Procedure
► System
► Organization
A procedural text provides information about a set of instructions that must be followed to achieve a specific goal.
Question No: 12 ( M a r k s: 1 ) http://vuzs.net
Closed System depends on __________ and data.
► Internal resources
► External resources
► Procedures.
When we refer to a closed system we talk of a system that is dependent on internal resources and data for decision making rather than external environment.
Question No: 13 ( M a r k s: 1 ) http://vuzs.net
______ is the set of interconnected structural elements that provide the framework.
► Infrastructure
► System
► Organization
Infrastructure, generally, is the set of interconnected structural elements that provide the framework for supporting the entire structure.
Question No: 14 ( M a r k s: 1 ) http://vuzs.net
Incremental model combines the elements of the RAID model with the philosophy of prototyping.
► True
► False
Incremental Model: This model combines the elements of the waterfall model with the philosophy of prototyping.
Question No: 15 ( M a r k s: 1 ) http://vuzs.net
System analysis creates the understanding and lays out the necessary relationships that will assist in defining a solution to the problem or the design of the proposed software that will meet the user needs.
► True
► False
System analysis creates the understanding and lays out the necessary relationships that will assist in defining a solution to the problem or the design of the proposed software that will meet the user needs.
Question No: 16 ( M a r k s: 1 ) http://vuzs.net
Which of the following model is a series of short waterfall cycles, each producing an early prototype representing a part of the entire project?
► Spiral
► Iterative
► WaterFall
► Incremental
SPIRAL is an iterative approach to system development. The spiral lifecycle model is a combination of the classic waterfall model and aspects of risk analysis.
Question No: 17 ( M a r k s: 1 ) http://vuzs.net
There are five phases of the decision making process, first one is intelligence.
► True
► False
Five Phases of decision-making process are:
• Intelligence – searching for conditions in the environment that call for decisions
• Design – inventing, developing, and analyzing possible courses of action
• Choice – selecting a course of action from those available
• Implementation – implementing the selected course of action
• Monitoring – checking the consequences of the decision made after implementation
Question No: 18 ( M a r k s: 1 ) http://vuzs.net
_____ information is just like feedback of organization image in public.
► Informal
► External
► Formal
Question No: 19 ( M a r k s: 1 ) http://vuzs.net
__________ sources materials in which the information from secondary sources has been digested.
► Primary
► Tertiary
► Secondary
Definitions of Tertiary Sources:
Materials in which the information from secondary sources has been "digested" .
Question No: 20 ( M a r k s: 1 ) http://vuzs.net
In which of the following category information is presented in its original form, neither interpreted nor condensed nor evaluated by other writers ?
► Primary Information
► Tertiay Information
► Secondary Information
► All of above
Definitions of primary sources:
They present information in its original form, neither interpreted nor condensed nor evaluated by other writers.
Question No: 21 ( M a r k s: 2 )
What do we mean by cognitive process?
Answer:
Cognitive process is the mental process of knowing, including aspects such as awareness, perception, reasoning and judgment.
Question No: 22 ( M a r k s: 2 )
Identify the basic function and responsibities of a system analyst.
Answer:
A person who has a detailed knowledge of computers and system design and his basic function is to analyze the whole system and find out the problems it there is.
Question No: 23 ( M a r k s: 3 )
What do you understand by ERD? Define briefly
Answer:
Entity Relationship Diagram (ERD) is a tool used in system design.
ERD as shown in the above indicates simple relationships. These relationships can be read as.
- one department has one supervisor
- A department may have more than one employees
Or
- An employee ma be in more than one departments
- An employee may not be working on any project but a project must have at least one employee working on it.
Question No: 24 ( M a r k s: 3 )
List any three normative models of Choice Phase of decision making process.
Answer:
The Choice Phase:
A course of action is selected out of the available alternatives as devised in the design phase. Typical Activities include:
• Get information
• Final evaluation
• Sensitivity analysis
Question No: 25 ( M a r k s: 5 )
What do you understand by system design and identify the steps it includes.
Answer:
It can be explained and presented in narrative form.
Question No: 26 ( M a r k s: 5 )
DSS are used to take help in Semi structured decisions. What does DSS use as support in order to facilitate Semi Structured Decision making?
