chapter 10 pre- and post- test
Which statement is true of extreme programming (XP)?
A system's quality is improved by addressing major issues that have not been examined before.
Which is an outcome of the design phase of the systems development life cycle (SDLC)?
A document with exact specifications for executing the system, including procedures, hardware and software, and networking components
Which is a disadvantage of a request for proposal (RFP)?
A lengthy time frame for preparation makes an RFP less appealing.
Which is a similarity between agile methodology and extreme programming (XP)?
Both focus on an incremental development process.
_____ is a method for developing software applications and information system projects in which a project is divided into smaller functions and developers cannot go on to the next phase until the current phase is finished.
Extreme programming
Which statement is true of Critical Path Method (CPM)?
It determines the critical path for the completion of a series of interrelated activities.
Which is an advantage of the joint application design (JAD) approach?
It incorporates varying viewpoints from different functional areas of an organization to help ensure that collected requirements for an application is not too narrow or one-dimensional in focus.
Which of the following approaches for developing information systems increases the risk of leaking confidential information to competitors?
Outsourcing
_____ uses an iterative process that repeats the design, development, and testing steps as needed, based on feedback from users.
Rapid application development
Which is a difference between the systems development life cycle (SDLC) and extreme programming (XP)?
The SDLC model develops an entire system at once, whereas XP uses incremental steps to improve an information system's quality.
In the design phase of the systems development life cycle (SDLC), the _____ design is an overview of the system and does not include hardware or software choices.
conceptual
A _____ is a tool used in the structured systems analysis and design (SSAD) model for data analysis.
conceptual data model
In the context of structured systems analysis and design (SSAD) models, a _____ is a tool that helps analysts understand the data requirements an information system must meet by defining data elements and showing the associations between them.
conceptual data model
In the context of structured systems analysis and design (SSAD) models, a _____ is a tool that shows a process at a more general level and is helpful for showing top management and the task force how a process works.
context diagram
In the context of structured systems analysis and design (SSAD) models, a _____ is a tool that illustrates the logical steps in a process but does not show data elements and associations.
flowchart
Creating a _____ is a task in the maintenance phase of the software development life cycle (SLDC).
help desk
In the SDLC, projecting the organization's growth rate is _______.
important
In the context of an organization's information system, external users _____.
include customers, contractors, and suppliers
In the SDLC model, each phase's output becomes the _______ for the next phase.
input
_____ feasibility is concerned with issues such as political repercussions of using an information system and meeting the requirements of the Information Privacy Act.
legal
In the design phase of the systems development life cycle (SDLC), the _____ design indicates hardware and software, such as specifying Linux servers and Windows clients.
logical
During the _____ of the systems development life cycle (SDLC), an information system is operating, enhancements and modifications to the system have been developed and tested, and hardware and software components have been added or replaced.
maintenance
The ____ phase of the SDLC involves gathering information on whether the system is meeting its objectives.
maintenance
In situations where an information system needs to be designed from scratch, the SDLC model is _____.
particularly suitable
Gathering _____ is part of the maintenance phase of the software development life cycle (SLDC).
performance data
During the _____ phase of the systems development life cycle (SDLC) model, an information systems designer must define the problem an organization faces, taking care not to define symptoms rather than the underlying problem.
planning
In the context of prototyping during the design phase of the systems development life cycle (SDLC), a _____ prototype shows users how a particular task that was not technically feasible or appears to be unfeasible can be done.
proof-of-concept
Finding out how a new information system would address employees' problems in performing their jobs is the goal of which phase in the SDLC:
requirements-gathering and analysis
In the _____ phase of the systems development life cycle (SDLC), a problem is defined and alternatives are generated for solving it.
requirements-gathering and analysis
_____ feasibility is concerned with whether a new system can be completed on time.
scheduling
The _____ approach treats process and data independently and is a sequential approach that requires completing the analysis before beginning the design of information systems.
structured systems analysis and design
One shortcoming of rapid application development (RAD) is _____.
that it has a narrow focus, which might limit future development
During the implementation phase of the systems development life cycle (SDLC), _____.
the solution is transferred from paper to action, and a team configures the system and procures components for it
During the maintenance phase of the software development life cycle, the team may decide to start the SDLC cycle over if:
the system is not working correctly
_____ is a series of well-defined phases performed in sequence that serves as a framework for developing an information system or project.
the systems development life cycle
The main goal of an information system is delivering _____ in a timely manner to the right decision maker.
useful information
The systems development life cycle (SDLC) is also known as the _____.
waterfall model
During the maintenance phase of the SDLC, the team gathers information on ______.
whether the system is meeting its objectives
