What is an Information System? | Types of Information Systems | System Development Lifecycle (SDLC) | Responsibility & Approaches to System Development |
---|---|---|---|
A system
A collection of elements and procedures that interact to accomplish a goal.
|
Management Information Systems (MISs)
These provide "decision-makers" (usually middle management) within a company with preselected types of information.
|
System Development Lifecycle
The _________ has six phases.
|
Information Technology (IT)
Developing, running, and maintaining the computers and information systems in an organization is usually the responsibility of the __________ ___________ department.
|
An information system
A system used to generate information to support users in an organization.
|
Transaction Processing Systems (TPSs)
These perform tasks that generally involve the tedious record-keeping that organizations handle regularly like order entry, payroll, and accounting systems.
|
Preliminary investigation
The _________ ___________ is the first phase of the SDLC, where the nature of the problem will be assessed, as well as the potential scope of the system development effort, the possible solutions, and the costs/benefits of those solutions.
|
Outsourcing
When a company lacks in-house expertise, time, or money to do its own system development, it often turns to ______________.
|
System development
The process that consists of all activities needed to put a new or modified system into place.
|
Document Management System
This information system is used to increase productivity and facilitate better communication in the office, particularly concerning the management of documents.
|
System analysis
_______ _______ is the second phase of the SDLC, where the main objective is to study the application in depth to assess the needs of users.
|
Waterfall Model
In traditional system development, the phases of the SDLC are carried out in the traditional order, some times called the ________ _________.
|
Enterprise systems
Information systems used throughout an entire enterprise (business).
|
Artificial Intelligence
The four main types of this technology innovation are intelligent agents, expert systems, neural networks, and robotics.
|
System design
During the _______ ______ phase (the third phase of the PDLC) a model is developed for a new system as well as a detailed analysis of benefits and costs.
|
End-user development
____-______ _________ is a system development approach in which the end user is primarily responsible for building the system.
|
Digital ecosystem
A collection of people, goods, services, and business processes related to a digital element.
|
Geographic Information System (GIS)
This is an information system that combines geographic information with other types of data in order to better understand the relationships among the data.
|
System acquisition
Once a system has been designed and the required types of hardware and software have been specified, the _________ __________ phase begins.
|
Prototyping
This type of iterative approach to system development focuses on developing small models, or prototypes, of the target system.
|