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Bourgeois Learning Objectives Upon successful completion of this chapter, you will be able to: Introduction When someone has an idea for a new function to be performed by a computer, how does that idea become reality?
If a company wants to implement a new business process and needs new hardware or software to support it, how do they go about making it happen?
In this chapter, we will discuss the different methods of taking those ideas and bringing them to reality, a process known as information systems development.
Programming As we learned in chapter 2, software is created via programming. Programming is the process of creating a set of logical instructions for a digital device to follow using a programming language.
True, sometimes a programmer can quickly write a short program to solve a need.
But most of the time, the creation of software is a resource-intensive process that involves several different groups of people in an organization.
In the following sections, we are going to review several different methodologies for software development. This methodology was first developed in the s to manage the large software projects associated with corporate systems running on mainframes.
It is a very structured and risk-averse methodology designed to manage large projects that included multiple programmers and systems that would have a large impact on the organization.
In this phase, a review is done of the request. Is creating a solution possible? What is currently being done about it?
Is this project a good fit for our organization? A key part of this step is a feasibility analysis, which includes an analysis of the technical feasibility is it possible to create this?
This step is important in determining if the project should even get started. In this phase, one or more system analysts work with different stakeholder groups to determine the specific requirements for the new system.
No programming is done in this step. Instead, procedures are documented, key players are interviewed, and data requirements are developed in order to get an overall picture of exactly what the system is supposed to do.
The result of this phase is a system-requirements document. It is in this phase that the business requirements are translated into specific technical requirements.
The design for the user interface, database, data inputs and outputs, and reporting are developed here. The result of this phase is a system-design document.
This document will have everything a programmer will need to actually create the system.(chapter appendix) 1. Solution Exhibit A presents the regression output for (a) setup costs and number of setups and (b) setup costs and number of setup-hours.
备课笔记：管理信息系统导论, 海南大学 旅游学院chapter 10 answers to discussion questions 1. Why do you think prototyping has become a popular way to devel Scribd is the world's largest social reading and publishing site. Study Flashcards On Chapter 10 Study Questions at schwenkreis.com Quickly memorize the terms, phrases and much more.
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