Flashcards in Chapter 13: Building Information Systems Deck (54)
Provides the final certification that the system is ready to be used in a production setting.
Rapid delivery of working software by breaking a large project into a series of small sub-projects that are completed in short periods of time using iteration and continuous feedback.
Using the computer to speed up the performance of existing tasks.
Business Process Management
Business process management (BPM) is an approach to business which aims to continuously improve and manage business processes.
Business Process Redesign
Type of organizational change in which business processes are analyzed, simplified, and redesigned.
Building large software systems by combining pre-existing software components.
Computer-Aided Software Engineering (CASE)
Automation of step-by-step methodologies for software and systems development to reduce the amounts of repetitive work the developer needs to do.
The process of changing from the old system to the new system.
The modification of a software package to meet an organization's unique requirements without destroying the package software's integrity.
Data Flow Diagram (DFD)
Primary tool for structured analysis that graphically illustrates a system's component process and the flow of data between them.
Direct Cutover Strategy
A risky conversion approach where the new system completely replaces the old one on an appointed day.
Descriptions of how an information system works from either a technical or end-user standpoint.
The part of an information system through which the end user interacts with the system, such as on-line screens and commands.
As part of the systems analysis process, the way to determine whether the solution is achievable, given the organization's resources and constraints.
A programming language that can be employed directly by end users or less-skilled programmers to develop computer applications more rapidly than conventional programming languages.
A detailed statement of the information needs that a new system must satisfy; identifies who needs what information, and when, where, and how the information is needed.
A process of repeating over and over again the steps to build a system.
Joint Application Design (JAD)
Process to accelerate the generation of information requirements by having end users and information systems specialists work together in intensive interactive design sessions.
Changes in hardware, software, documentation, or procedures to a production system to correct errors, meet new requirements, or improve processing efficiency.
Software building block that combines data and the procedures acting on the data.
Approach to systems development that uses the object as the basic unit of systems analysis and design. The system is modeled as a collection of objects and the relationship between them.
Outsourcing systems development work or maintenance of existing systems to external vendors in another country.
Radical reconceptualization of the nature of the business and the nature of the organization.
A safe and conservative conversion approach where both the old system and its potential replacement are run together for a time until everyone is assured that the new one functions correctly.
Phased Approach Strategy
Introduces the new system in stages either by functions or by organizational units.
Pilot Study Strategy
A strategy to introduce the new system to a limited area of the organization until it is proven to be fully functional; only then can the conversion to the new system across the entire organization take place.
Formal review process conducted after a system has been placed in production to determine how well the system has met its original objectives.
Describe the logic of the processes occurring within the lowest levels of a data flow diagram.
The stage after the new system is installed and the conversion is complete; during this time the system is reviewed by users and technical specialists to determine how well it has met its original goals.