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18 Cards in this Set
- Front
- Back
a software architecture perspective that focuses on the development, use, and reuse of small self contained blocks of code (called services) to meet all the application software needs of an organization
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service oriented architecture (SOA)
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generally a relative term meaning the structure beath a structure. implies different layers of structure, which provide support or services
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infrastructure
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refers to the capability of two or more computing components to share information and other resources, even if they are made by different manufacturers
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interoperability
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involves little or not sharing of IT and other resources such as information.. generally arises from users or departments developing their own systems or applications
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decentralized infrastructure
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involves sharing information systesm in one central area or on one central mainframe
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centralized infrastructure
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invovles distributing the information and processing power of IT systems via a network ( the first true network infrastructure.)
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distributed infrastructure
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has one or more computers taht are servers which provide services to toher computers, called clients.
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client/server infrastructure (or client/server network)
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the IT system is partioned into tiers (or layers) where each tier performs a specific type of functionality.
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tiered infrastructure (layerd)
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is the most basic setup because it involves a single tier on a single machine
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1 teir infrastructure
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the basic client/server relationship. in essence, the client handles the display, the server handles the request and the application tier is contained on one or both of the two tiers.
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2-tier infrastructure
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the most common approach used for web applications today
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3-tier infrastructure
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balances the work of the network over several different servers can contain any number of tiers. starts with basic 3 tier model and expands on it to allow for greater performance, scalability, and a host of other benefits.
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n-tier infrastructure
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the process of continuously measuring system results and comparing those results to baseline values a system seeks to attain
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benchmarking
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baseline values a systems seeks to attain
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benchmarks
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means doing something right wihle ---- is doing the right thing
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efficiency, effectiveness
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most infrastructure centric metrics today in the IT world are
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efficiency metric
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typically a measure of the efficiency, speed, and/or capacity of technology.
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infrastructure centric metric
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infrastructure centric metrics include
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throughput, transaction speed, system availability, accuracy, response time, scalability
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