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K204 Definitions: Chapter 5, Quiz 4
K204
42
Business
Undergraduate 1
01/29/2012

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Term
Enterprise Architectures
Definition
Include the plans for how an organization will build, deploy, use, and share its data, processes, and IT assets.
Term
4 Different lenses through which a business must be looked when dealing with Enterprise Architecture
Definition
business, data, applications, and technology
Term
Enterprise Architect
Definition
A person grounded in technology, fluent in business, and provides the important bridge between IT and the business.
Term
3 components of basic enterprise architectures
Definition
information architecture, infrastructure architecture, and application architecture.
Term
Information architecture
Definition
Identifies where and how important information, such as customer records, is maintained and secured.
Term
Backup
Definition
An exact copy of the systems information.
Term
Recovery
Definition
The ability to get the system up and running in the event of a system crash or failure and includes restoring the information backup
Term
Fault Tolerance
Definition
he computer system designed that in the event a component fails, a backup component or procedure can immediately take its place with no loss of service
Term
Failover
Definition
A backup in which the functions of the computer component (server, network, database) are assumed by secondary system components when the primary component becomes unavailable either failure or scheduled downtime
Term
2 Techniques used to help in the case of system failure
Definition
1. Fault tolerance
2. Failover
Term
Disaster Recovery Plan
Definition
A detailed process for recovering information or an IT system in the event of a catastrophic disaster such as a fire or flood.
Term
Hot Site
Definition
A separate and fully equipped facility where the company can move immediately after a disaster and resume business.
Term
Cold Site
Definition
A separate facility that does not have any computer equipment, but is a place where employees can move after a disaster
Term
Disaster Recovery Chart Curve
Definition
charts (1) the cost to the organization of the unavailability of information and technology and (2) the cost to the organization of recovering from a disaster over time
Term
Business Continuity Planning
Definition
A plan for how an organization will recover and restore partially or completely interrupted critical functions within a predetermined time after a disaster or extended disruption.
Term
Infrastructure Architecture
Definition
Includes the hardware, software, and telecommunications equipment that, when combined, provides the underlying foundation to support the organizations goals.
Term
5 primary characteristics of an infrastructure architecture
Definition
flexibility, scalability, reliability, availability, and performance.
Term
Scalability
Definition
Refers to how well a system can adapt to increased demands
Term
Capacity Planning
Definition
Determines the future IT infrastructure requirements for new equipment and additional network capacity
Term
Reliability
Definition
Ensures all systems are functioning correctly in providing accurate information.
Term
Availability
Definition
Addresses when systems can be accessed by users
Term
High-Availability
Definition
Refers to a system or component that is continuously operational for a desirably long length of time
Term
Performance
Definition
Measures how quickly a system performs a certain assets or transaction (in terms of efficiency IT metrics of both speed and throughput).
Term
Application Architecture
Definition
Determines how applications integrate and relate to each other
Term
Web Services
Definition
Contain a repertoire of web-based data and procedural resources that use shared protocols and standards permitting different applications to share data and services.
Term
Interoperability
Definition
The capability of 2 or more computer systems to share data and resources, even though they are made by different manufacturers
Term
Events
Definition
The eyes and ears of the business expressed in technology–they detect threats and opportunities and alert those who can act on the information
Term
Services
Definition
More like software products than they are coding projects–they must appeal to a broad audience, and they need to be reusable if they're going to have an impact on productivity
Term
2 Primary parts of web services
Definition
events and services
Term
Open System
Definition
A broad, general term that describes nonproprietary IT hardware and software made available the standards and procedures by which their products work, making it easier to integrate them.
Term
Open Source
Definition
Refers to any program whose source code is made available for use or modification as users or other developers see fit- usually developed as a public collaboration in made freely available
Term
3 architecture trends quickly becoming requirements for business
Definition
service oriented architectures, virtualization, and grid computing
Term
Service Oriented Architecture
Definition
A business driven IT architectural approach that supports integrating a business as linked, repeatable tasks or services
Term
Service
Definition
Simply, a business task (such as checking a potential customer's credit rating when opening a new account)
Term
Extensible Markup Language
Definition
A markup language for documents containing structured information–what Web services are based on
Term
Loose Coupling
Definition
The capability of services to be joined on demand to create composite services or disassembled just as easily into their functional components
Term
Virtualization
Definition
A framework of dividing the resources of a computer into multiple execution environments–a way of increasing physical resources to maximize investment in hardware
Term
System Functionalization
Definition
The ability to present resources of a single computer as if it is a collection of separate computer, each with its own virtual CPU’s, network interfaces, storage, and operating system
Term
Trends that brought virtualization into the spotlight
Definition
Hardware Being Underutilized, Data Centers Running out of Space, Energy Costs Increasing, and System Administration Costs Mounting
Term
Moore's Law
Definition
• The amount of improvement itself grows over time because there's an exponential increase in capacity for every generation of processor improvement (twice as much)
Term
Grid Computing
Definition
An aggregation of geographically dispersed computing, storage, and network resources, coordinated to deliver improved performance, higher quality of service, better utilization, and easier access to data
Term
Grid computing business benefits
Definition
organizations can optimize computing and data resources, pool them for larger–capacity workloads, share them across networks, and enable collaboration
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