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43 Cards in this Set
- Front
- Back
computer application (app) |
a computer software program that executes on a |
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information system |
a set of interrelated computer components that collects, processes, stores, and provides as output the information needed to complete business tasks |
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systems analysis |
those activities that enable a person to understand and specify what the new system should accomplish |
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systems design |
those activities that enable a person to define and describe in detail the system that solves the need |
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project |
a planned undertaking that has a beginning and an end, and that produces some definite result |
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Systems Development Life Cycle (SDLC) |
the entire process consisting of all the activities required to build, launch, and maintain an information system |
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information systems development process |
the actual approach used to develop a particular information system |
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Agile Development |
an information systems development process that emphasizes flexibility to anticipate new requirements during development |
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iterative development |
an approach to system development in which the system is "grown" piece by piece through multiple iterations |
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subsystem |
an identifiable and partitioned portion of an overall system |
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technology architecture |
a set of computing hardware, network hardware and topology, and system software employed by |
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application architecture |
the organization and construction of software resources to implement an organization’s information systems |
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system requirements |
the activities a system must perform or support and the constraints that the system must meet |
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functional requirements |
the activities that the system must perform |
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nonfunctional requirements |
system characteristics other than the activities it must perform or support |
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FURPS
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a requirements classification framework (acronym stands for functionality, usability, reliability, performance, and security) |
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FURPS+ |
an extension of FURPS that includes design constraints as well as implementation, interface, physical, and supportability requirements |
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usability requirements |
operational characteristics related to users, such as the user interface, related work procedures, online help, and documentation |
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reliability requirements |
requirements that describe system dependability |
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performance requirements |
operational characteristics related to measures |
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security requirements |
requirements that describe how access to the application will be controlled and how data will be protected during storage and transmission |
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design constraints |
restrictions to which the hardware and software must adhere |
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implementation requirements |
constraints such as required programming |
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interface requirements |
required interactions among systems |
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physical requirements |
characteristics of hardware such as size, weight, power consumption, and operating conditions |
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supportability requirements |
how a system is installed, configured, monitored, and updated |
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model |
representation of some aspect of a system |
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textual models |
text-based system models such as memos, reports, narratives, and lists |
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graphical models |
system models that use pictures and other graphical elements |
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mathematical models |
system models that describes requirements numerically or as mathematical expressions |
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Unified Modeling Language (UML) |
standard set of model constructs and notations |
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stakeholders |
persons who have an interest in the successful implementation of the system |
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internal stakeholders |
persons within the organization who interact with the system or have a significant interest in its operation or success |
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external stakeholders |
persons outside the organization’s control and influence who interact with the system or have a significant interest in its operation or success |
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operational stakeholders |
persons who regularly interact with a system in the course of their jobs or lives |
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executive stakeholders |
persons who don’t interact directly with the system but who either use information produced by the system or have a significant financial or other interest in its operation and success |
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client |
person or group that provides the funding for a system development project |
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open-ended questions |
questions that encourage discussion or explanation |
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closed-ended questions |
questions that elicit specific facts |
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workflow |
sequence of processing steps that completely handles one business transaction or customer request |
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activity diagram |
describes user (or system) activities, the person who does each activity, and the sequential flow of these activities |
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synchronization bar |
activity diagram component that either splits a control path into multiple concurrent paths or recombines concurrent paths |
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swimlane heading |
activity diagram column containing all activities for a single agent or organizational unit |