Page 266 - DMGT505_MANAGEMENT_INFORMATION_SYSTEM

Unit 14: Alternative System Building Approaches

Self Assessment Notes

Fill in the blanks:
1. The system lifecycle is the oldest method for building ...................................... and is used
today for medium or large complex systems projects.
2. The ............................. stage determines whether the organization has a problem and whether
that problem can be solved by building a new information system or by modifying an
existing one.

3. The ...................................... stage analyzes the problems of existing systems in detail, identifies
objectives to be attained by a solution to these problems, and describes alternative solutions.
4. The design stage produces the design ...................................... for the solution.
5. The programming stage ...................................... the design specifications produced during
the design stage into software program code.
6. ............................................ work with programmers to prepare specification for each program
in the system.
7. The ...................................... stage consists of the final steps to put the new or modified
system into operation: testing, training, and conversation.
8. The ................................. is a working version of an information system or part of the system .
9. When no more iteration is required, the approved prototype then becomes an
...................................... prototype that furnishes the final specifications for the application.
10. If an organization has unique requirements that the package does not address, many
packages include capabilities for ......................................

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

14.2 Management Opportunities Challenges and Solutions

Management challenges and opportunities are based on the following:

14.2.1 Unproven Business Models

Doing business over the Internet is not necessarily more efficient or cost effective than traditional
business methods. Virtual retailers may not need to pay for costly storefronts and retail workers,
but they often requires, but they often require heavy outlays for warehousing, customer service
call centers, and customer acquisition.
Challenges also confront businesses that are trying to use the Web to supplement or enhance a
traditional business model. Many businesses are finding that it is not enough to “get on the
Web” Business that are unclear about their on-line strategy can waste thousands and even
millions of dollars building and maintaining a Web site that fails to deliver the desired results.
Even successful Web sites can incur very high costs.

14.2.2 Business Process Change Requirements

Electronic commerce and electronic business require careful orchestration of the firm’s division,
production sites, and sales offices, as well as close relationships with customer, suppliers, and
other business partners in its network of value creation. Essential business processes must be
redesigned and more closely integrated, especially those for supply chain management.

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