Changes made periodically to a system, after its implementation, is known as system
A. analysis
B. design
C. development
D. maintenance
E. none of the above
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The first step in systems Development Life Cycle is
A. database design
B. system design
C. preliminary investigation and analysis
D. graphical user interface
E. None of the above
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Nassi - schneiderman charts
A. are being replaced by flowcharts
B. often describe over lapping control structures
C. are made up of boxes within boxes
D. both (a) and (c)
E. None of the above
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Which of the following tools is not used in modeling the new system?
A. decision tables
B. data dictionary
C. data-flow diagrams
D. All of the above
E. None of the above
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A design that consists of a hierarchy of modules; each module has a single entry and a single exit subroutine, is known as
A. hierarchy structure
B. top-down design
C. Tuple
D. Turnaround
E. None of the above
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Rapid prototyping proves the quality of a design by
A. having a program simulate the real system
B. having the system analyst present an overview of the design to users, programmers, and consultants
C. having a data flow diagram
D. both (a) and (b)
E. None of the above
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The black-box concept:
A. is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
B. assumes that the black box is independent
C. assumes that inputs and outputs will remain stable
D. All of the above
E. None of the above
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A system investigation may result from
A. an analysis investigation
B. a scheduled systems reviewed
C. a manager's formal request
D. All of the above
E. None of the above
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Graphic representation of the control logic of processing functions or modules representing a system, is known as:
A. Structured analysis
B. Structured chart
C. Structured English
D. System Flow chart
E. None of the above
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Which of the following is an integrated collection of data with minimum redundancy, so that different applications can use the required data.
A. records
B. file
C. DBMS
D. schema
E. None of the above
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Where one has to process all the data records in a file, the best tile organization is
A. Indexed
B. sequential
C. direct access
D. random access
E. None of the above
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An open rectangle
A. defines a source or destination of system data
B. identifies data flow
C. represents a process that transforms incoming data flow(s) into outgoing data flows
D. is a data store-data at rest, or a temporary repository of data
E. None of the above
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The feasibilities studied in preliminary investigation is (are):
A. technical feasibility
B. economic feasibility
C. operational feasibility
D. All of the above
E. None of the above
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Branch mark programs are best characterized as
A. Simulator programs
B. Hallmarking
C. Actual system programs
D. Vendor software for applications
E. None of the above
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Conversion method in which users, being used to an old system, continue to use the old system, alongside the new system, is
A. multi processing
B. multitasking
C. parallel run
D. All of the above
E. None of the above
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A programmer reviews the accuracy of an algorithm by _____ it.
A. Analyzing
B. Coding
C. Desk-checking
D. Planning
E. None of the above
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Sequential organization
A. means storing records in contiguous blocks according to a key.
B. Stores records sequentially but uses an index to locate records
C. uses an index for each key type
D. has records placed randomly throughout the file
E. None of the above
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Which of the following systems implementation approaches should be used if you want to run the old system and the new system at the same time for a specified period?
A. direct
B. pilot
C. phased
D. parallel
E. None of the above
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A _____ is software that is designed for drawing diagrams of information systems, writing process specifications, and maintaining data dictionaries.
A. System Development Life Cycle
B. CASE tool
C. Phased Conversion
D. Success factors
E. Move of the above.
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On the feasibility committee, department representatives serve as
A. ready source of information
B. liason to their departments
C. direct users of the new system
D. both (a) and (c)
E. None of the above
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