information system development life cycle models
Information System Concepts merida
Health information managers must understand the components of information systems and how information systems affect the organization, individuals within the organization, and interested publics outside the organization. Information systems provide opportunities to improve internal operations, create competitive advantage in the marketplace, improve patient-care delivery, enhance research, and provide better service. Information system risk occurs when the systems are not well integrated, are poorly managed, or do not support the goals of the organization. In order to exploit information system opportunities and minimize threats and risks, a thorough understanding of information system components and how these relate to the organization is necessary.
An information system is composed of a group of components (people, work processes, data, and information technologies) that interact through defined relationships to accomplish a goal. Information systems must be able to adapt to environmental change. A good example of a health-related information system is an order entry system. The goal of the system is to process physician orders. The system is composed of a group of components including people (nurses, physicians, unit secretaries, laboratory personnel), data, work processes, and information technologies. Each of these components interacts through defined relationships. fails to accommodate the environment or if the interactions among its component parts fail, the system becomes nonfunctional and disintegrates. Thus, a system must be composed of a group of components that:
Interact through defined relationships
Work toward accomplishing a goal
Self-adapt and respond to environmental changes
Figure 2-1 provides an example of the relationship of these characteristics.
An information system is composed of a group of components (people, work processes, data, and information technologies) that interact through
Health information managers must understand the components of information systems and how information systems affect the organization, individuals within the organization, and interested publics outside the organization. Information systems provide opportunities to improve internal operations, create competitive advantage in the marketplace, improve patient-care delivery, enhance research, and provide better service. Information system risk occurs when the systems are not well integrated, are poorly managed, or do not support the goals of the organization. In order to exploit information system opportunities and minimize threats and risks, a thorough understanding of information system components and how these relate to the organization is necessary.
An information system is composed of a group of components (people, work processes, data, and information technologies) that interact through defined relationships to accomplish a goal. Information systems must be able to adapt to environmental change. A good example of a health-related information system is an order entry system. The goal of the system is to process physician orders. The system is composed of a group of components including people (nurses, physicians, unit secretaries, laboratory personnel), data, work processes, and information technologies. Each of these components interacts through defined relationships. fails to accommodate the environment or if the interactions among its component parts fail, the system becomes nonfunctional and disintegrates. Thus, a system must be composed of a group of components that:
Interact through defined relationships
Work toward accomplishing a goal
Self-adapt and respond to environmental changes
Figure 2-1 provides an example of the relationship of these characteristics.
An information system is composed of a group of components (people, work processes, data, and information technologies) that interact through