software package
is a prewritten commercially available set of
software programs that eliminates the need for a firm to write its own
software programs for certain functions, such as payroll processing or order
handling.
Enterprise application software vendors such as SAP and Oracle-PeopleSoft
have developed powerful software packages that can support the primary
business processes of a firm worldwide from warehousing, customer relation-
ship management, supply chain management, and finance to human
resources. These large-scale enterprise software systems provide a single,
integrated, worldwide software system for firms at a cost much less than they
would pay if they developed it themselves. Chapter 9 discusses enterprise
systems in detail.
FIGURE 5-10
HOW DOLLAR RENT A CAR USES WEB SERVICES
Dollar Rent A Car uses Web services to provide a standard intermediate layer of software to “talk” to
other companies’ information systems. Dollar Rent A Car can use this set of Web services to link to
other companies’ information systems without having to build a separate link to each firm’s systems.
192
Part Two
Information Technology Infrastructure
S o f t w a r e O u t s o u r c i n g
Software
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