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36 terms

MGSC Exam 4 CH 10 Section C: System design

STUDY
PLAY
Parallel Conversion
avoids some of the risk of direct
conversion because the old system remains in
service while some or all of the new system is
activate
Systems Programmer
A ___ ___ is the operating system "guru," whose
responsibilities include installing new versions of
the operating system and modifying operating
system settings to maximize performanc
Implementation Phase
In the ___ ___ of the SDLC, the project team
supervises the tasks necessary to construct the
new information system
Quality-of-Service Metric
A ___ ___ is a technique for measuring a specific
QoS characteristic
Turnkey System
A ___ ___ is essentially an "information system in
a box," which consists of hardware and commercial
software designed to offer a complete information
system solutio
Downtime
QoS Metric ___ is the amount of time a system is
not available for processing
Capacity
QoS Metric ___ is the available storage space,
number of users, number of connections, or
number of packet
Maintenance Phase
The ___ ___ of the SDLC involves day-to-day
operation of the system, making modifications to
improve performance, and correcting problem
User Documentation
___ ___ describes how to interact with the system
to accomplish specific task
Distributed Processing
An alternative design option is ___ ___, in which
processing tasks are distributed to servers and
workstation
Test Area
A ___ ___ is a place where software testing can
occur without disrupting the organization's regular
information system
Throughput
QoS Metric ___ is the amount of data processed
in a particular time interval
User Levels
QoS Metric ___ ___ is the number of users at
peak, average, and low times
Accuracy
QoS Metric ___ is the number of errors occurring
in a particular time interval for a particular function
Application Testing
___ ___ is the process of trying out various
sequences of input values and checking the results
to verify that the application works correctly
Request for Proposal
A ___ ___ ___ (RFP) is a document that describes
the information system problem and the
requirements for the solution
Unit Testing
As each application module is completed, it
undergoes ___ ___ to ensure that it operates
reliably and correctly
System Testing
After unit and integration testing are completed,
___ ___ ensures that all hardware and software
components work together correctly
System Documentation
___ ___ describes a system's features, hardware
architecture, and programming
Request for Quotation
A ___ ___ ___ (RFQ) is a request for a formal
price quotation on a list of hardware and software
Software Customization
___ ___ is the process of modifying a commerical
application to reflect an organization's needs
Centralized Processing
An information system can be designed for ___
___, in which data is processed on a centrally
located computer
Integration Testing
When all modules have been completed and
tested, ___ ___ is performed to ensure that the
modules operate together correctly
Pilot Conversion
___ ___ works well in organizations with several
branches that have independent information
processing systems because the new information
system is activated at one branch at a time
Response Time
QoS Metric ___ ___ is the time period between
when a user initiates a request for information and
when the request is fulfilled
Application Development Tool
An ___ ___ ___ is essentially a type of software
construction kit containing building blocks that can
be assembled into a software product
Quality of Service
The term ___ ___ ___ (QoS) refers to the level of
performance a computer system provides
Procedure Handbook
A ___ ___ is a type of user docuentation that
contains step-by-step instructions for performing
specific task
Application Specifications
If a project team selects a solution that requires
custom programming, the team's systems analysts
will create a set of ___ ___ that describe the way
the information system's software should interact
with users, store data, process data, and format
reports
Decision Support Worksheet
A spreadsheet, like Excel, can be used to produce
a ___ ___ ___ for comparing potential solutions
Design Phase
In the ___ ___ of the SDLC, the project team must
figure out how the new system will fulfill the
requirements specified in the system requirements
report
Help Desk
The ___ ___ is staffed by technical support
specialists who are familiar with the information
system's software
Acceptance Testing
___ ___ is designed to verify that the new
information system works as required
Phased Conversion
___ ___ works well with large, modularized
information systems because the new system is
activated one module at a time
System Conversion
___ ___ refers to the process of deactivating an
old information system and activating a new one
Direct Conversion
___ ___ means that the old system is completely
deactivated and the new system is immediately
activate