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Designing a Small System

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Designing a Small System
Plan and Design a Small System:
Identify and document a full information system for a small company. You will apply the basic steps of the SDLC to
building the IT infrastructure for an electronic health care data system for an urgent care facility by addressing
what actions are taken and what decisions are made in each phase. Some of the key technical issues to address
include privacy, security, shared resources, data format, storage and common file format. The results should be
presented in a 1800 to 2400 word paper (no more than 1.5 line spacing and no more than 12 point type) that details
each step in the SDLC (Systems Development Life Cycle) with an emphasis on the technology outcome. Refer to the
document "SDLC Module 2 from IFSM 201" in Course Content. Identify which approach you will employ (Four-Phase,
Nine-Phase, or Ten-Phase), but clearly articulate the steps used to:
1. Complete a preliminary investigation, requirements analysis, and system recommendation
2. Specify a detailed design based on your set of requirements.
3. Develop the system according to your design specification.
4. Outline how you would test the system and gain user acceptance.
From IFSM 201 - Module 2: Information System Development
Commentary
Topics
โ€ข Purpose of the Systems Development Life Cycle (SDLC)
โ€ข The SDLC Phases

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โ€ข SDLC Models
โ€ข Relationship between SDLC and Project Management
โ€ข Summary
[pic]
Purpose of the Systems Development Life Cycle (SDLC)
What Is SDLC?
The systems development life cycle (SDLC) is a structured methodology and process
that guides the development of information systems. SDLC is based on a series of
related activities that are combined into phases, sometimes called life-cycle phases.
The phases represent a state or stage in the life of an information system. Generally
speaking, an information system life cycle proceeds from requirements gathering to
design and development to operations and maintenance to decommissioning. Each
successive phase leverages the documentation and knowledge gained from the
previous phases. Figure 2.1 shows the general flow of a basic SDLC.
Figure 2.1
Basic Systems Development Life Cycle
[pic]
The main purpose of using SDLC is to promote quality during the design, development,
and implementation effort. When SDLC is used properly, information systems are more
reliable and cost effective because project activities are planned, documented, tracked,
and controlled. To ensure that the information system will meet the stated requirements,
SDLC also includes predefined reviews, inspections, and audits for the life-cycle
processes and deliverables to identify variances and recommend changes.
Using the SDLC Acronym
As with most acronyms, there can be some confusion associated with using SDLC.
Within the information technology industry, SDLC may also be used for:
โ€ข Synchronous Data Link Controlโ€”A communications protocol that divides network
functions into clearly defined layers.

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Designing a Small System Plan and Design a Small System: Identify and document a full information system for a small company. You will apply the basic steps of the SDLC to building the IT infrastructure for an electronic health care data system for an urgent care facility by addressing what actions are taken and what decisions are made in each phase. Some of the key technical issues to address include privacy, security, shared resources, data format, storage and common file format. The results should be presented in a 1800 to 2400 word paper (no more than 1.5 line spacing and no more than 12 point type) that details each step in the SDLC (Systems Development Life Cycle) with an emphasis on the technology outcome. Refer to the document "SDLC Module 2 from IFSM 201" in Course Content. Identify which approach you will employ (Four-Phase, Nine-Phase, or Ten-Phase), but clearly articulate the steps used to: 1. Complete a preliminary investigation, requirements analysis, and system recommendation 2. Specify a detailed design based on your set of requirements. 3. Develop the system according to your design specification. 4. Outline how you would test the system and gain user acceptance. From IFSM 201 - Module 2: Information System Development Commentary Topics โ€ข Purpose of the Systems Development Life Cycle (SDLC) โ€ข The SDLC Phases โ€ข SDLC Models โ€ข Relationship between SDLC and Project Management โ€ข Summary [pic] Purpose of the Systems Development Life Cycle (SDLC) ...
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