Page 265 - DMGT505_MANAGEMENT_INFORMATION_SYSTEM

Management Information Systems

Notes
Did u know? Once the design has been finalized, the prototype can be converted to a
polished production system.

Notes When no more iterations are required, the approved prototype then becomes an
operational prototype that furnishes the final specifications for the application. Sometime
the prototype itself is adopted as the production version of the system.

14.1.3 Application Software Packages

Information systems can be built using software from application software packages. There are
many applications that are common to all business organizations. If a software package can
fulfill most of an organization’s requirement, the company does not have to write its owner
software.
If an organization has unique requirements that the package does not address, many packages
include capabilities for customization. Customization features allow a software packages to be
modified to meet an organization’s unique requirements without destroying the integrity of
the packaged software.

Example: Applications software packages include database programs, word processors,
and spreadsheets.

!
Caution The company can save time and money by using the prewritten, redesigned,
protested software programs from the package.

14.1.4 End-User Development

It is the development of information system by end user with little or no formal assistance from
technical specialists.

Benefits and Limitation of End-User Development

End–user computing also poses organizational risks because it occurs outside of traditional
mechanisms foe information system management and control. When systems are rapidly, without
a formal development methodology, testing and documentation systems department. When
users create their own applications and files, same piece of information is used consistently
throughout the organization.

Managing End-User Development

To help organization maximize the benefits of end- user applications development, management
should control the development of end-user applications by requiring cost justifications of end-
user information system projects and by establishing hardware, software, and quality standards
for user developed applications.

Example: End-users include spreadsheet users who write formulas and macros.

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