notes

Cloud - Key Terminology to Remember

• Elasticity

  • Ability to automatically scale resources up or down based on demand

• Agility

  • Ability to move fast and respond quickly to business needs

  • Quickly deliver software

  • Quickly provision infrastructure

• Global Reach and Geo-Distribution

  • The ability to expand to new markets and deploy applications to data centers around the world quickly

• Availability

  • Are applications available when users need them

• Latency

  • Time taken for a request to travel between user and server

  • Reduced by serving users from nearby locations

• Capital Expenditure (CapEx)

  • Large upfront investment

  • For example, in infrastructure like servers and data centers

• Operational Expenditure (OpEx)

  • Ongoing cost for renting resources (or services) as needed

• Pay As You Go

  • Trade capital expense (CapEx) for variable expense (OpEx).

  • Pay only for the resources you actually use

• Economies of Scale

  • Buying resources in large quantities lowers the cost per unit

• Avoid Undifferentiated Heavy Lifting

  • Spend more time on what makes your business unique

  • Example: Insurance company focussing on calculating better premiums

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Scenario	Cloud Concept
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