In [[information technology]], '''high-availability application architecture''' is a process followed when implementing a new [[application software|application]] into an existing business-wide [[computer system]] or [[Enterprise resource planning|ERP]] while minimizing [[downtime]].
The architecture contains three stages: [[Research and development|development]], [[quality assurance]], and [[Production, costs, and pricing|production]].
==Definition==
In the above definition, ''[[high availability]]'' is "a [[design]] and [[implementation]] that ensures a certain degree of operational continuity",<ref>http://www.slideshare.net/davemitz/7-stages-of-scaling-web-applications</ref> and ''[[application architecture]]'' refers to the actual concept and design of implementing a new configuration into the particular system.
==Summary==
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===Development===
The [[research and development|development]] stage is where [[Computer program|program]] changes, and configuration settings are modified to meet the needs of the new or existing system.
===Quality assurance===
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===Production===
The final stage that the application enters is the [[Production, costs, and pricing|production]] stage, which entails the actual system that a company runs its business on.
