Types of information systems  Information systems support
operations, knowledge work, and management in organizations.
(The overall structure of organizational information systems is
shown in the figure.  Operational supportAt the operational
level are transaction processing systems  ) Functional
information systems that support a specific organizational
function, such as marketing or production, have been supplanted
by cross-functional systems. Such systems can be more effective
in the development and delivery of the firm’s products and can
be evaluated more closely with respect to the business outcomes.
Operational support and enterprise systems  Transaction
processing systems support the operations through which products
are designed, marketed, produced, and delivered. These systems
accumulate information in databases that form the foundation for
higher-level systems.In today’s leading organizations, In larger
organizations, transaction processing is frequently accomplished
with large integrated systems k