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Essay / Research Paper Abstract
A 10 page paper. The writer begins by discussing the three primary reasons for building a new system and also discusses Wetherbe's PIECES. Building systems, i.e., developing software applications, has become a very complex project that led to different management models, most of which are based on system life cycles. System development life cycle models offer frameworks to organize and manage the multitude of activities that are required for software development. This paper describes some of these models, such as the Waterfall model, Spiral model, the rapid application development model and others. The writer also outlines the six phases included in most models and discusses why the prototyping model is often used. The writer also comments on why some businesses may choose not to use a system development life cycle model. Bibliography lists 4 sources.
Page Count:
10 pages (~225 words per page)
File: MM12_PGsysdv.rtf
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Unformatted sample text from the term paper:
extrapolated from what is known about the models and process.] There was a time when a programmer would write the code to automate a procedure or solve a problem
(Kay, 2002). The result was a software program. But, today, information systems are so large and so complex that it takes teams of software development architects working in conjunction with
programmers, analysts, testers and users to create the software to run a business (Kay, 2002). The outcome will consist of millions of lines of computer code (Kay, 2002). In other
words, the outcome will be a system (Cleveland State University, 2002). The development of any system typically begins with one of three categories: 1. Problem recognition, a problem
is recognized and a solution is demanded (Cleveland State University, 2002). 2. Recognition of opportunity, an opportunity to offer a product is recognized and it is decided to build a
system to meet the opportunity (Cleveland State University, 2002). 3. Legal or management fiat, either the law or the companys management demands a particular system (Cleveland State University, 2002). James
Wetherbe offered the acronym PIECES to describe why systems were developed: * P - organization needs to improve performance (Cleveland State University, 2002). * I - the organization needs to
improve information (Cleveland State University, 2002). * E - the company needs to improve economics (Cleveland State University, 2002). * C - there is a need to improve control or
security in the organization (Cleveland State University, 2002). * E - there is a need to improve efficiency of people and processes in the organization (Cleveland State University, 2002). *
S - there is a need to improve service to customers, suppliers or any other group (Cleveland State University, 2002). All software projects incorporate a set of activities that begin
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