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'''aaS''', or '''XaaS''', is an [[acronym]] for '''as a service''' (e.g., anything as a service), and refers to something being presented to a [[customer]], either internal or external, as a [[Service (economics)|service]].<ref>Robin Hastings, ''Making the Most of the Cloud: How to Choose and Implement the Best Services'' (2013), p. 3.</ref> As a Service offerings provide endpoints for customers/consumers to interface with which are usually API driven, but can commonly be controlled via a web console in a user's web browser.
'''aaS''', or '''XaaS''', is an [[acronym]] for '''as a service''' (e.g., anything as a service), and it refers to a business model in which something is being presented to a [[customer]], either internal or external, as a [[Service (economics)|service]].<ref>Robin Hastings, ''Making the Most of the Cloud: How to Choose and Implement the Best Services'' (2013), p. 3.</ref> As a Service offerings provide endpoints for customers/consumers to interface with which are usually API driven, but can commonly be controlled via a web console in a user's web browser.


Internally these often complex systems generally possess a high degree of internal automation which generally provide varying levels of fault tolerance and resiliency, the ability to scale up/down in or out to meet capacity and performance requirements of the workloads submitted to the service by its users/consumers, and are usually intended to operate their day to day functions without the need for human intervention. IaaS (Infrastructure as a service) features most commonly included in this automation package are compute, storage, network, telemetry, and logging/accountability features, but most IaaS components owe some portion of their workload to these services. The current cloud computing ecosystem contains multiple cloud providers, each with their own menu of these services for their customers to consume on-demand or in some cases even with pre-scoped capacity agreements.<ref>Archived at [https://ghostarchive.org/varchive/youtube/20211205/FxI9wQBOMco Ghostarchive]{{cbignore}} and the [https://web.archive.org/web/20200908085813/https://www.youtube.com/watch?v=FxI9wQBOMco Wayback Machine]{{cbignore}}: {{cite web| url = https://www.youtube.com/watch?v=FxI9wQBOMco| title = Cloud Architecture Fundamentals | website=[[YouTube]]}}{{cbignore}}</ref>
Internally these often complex systems generally possess a high degree of internal automation which generally provide varying levels of fault tolerance and resiliency, the ability to scale up/down in or out to meet capacity and performance requirements of the workloads submitted to the service by its users/consumers, and are usually intended to operate their day to day functions without the need for human intervention. IaaS (Infrastructure as a service) features most commonly included in this automation package are compute, storage, network, telemetry, and logging/accountability features, but most IaaS components owe some portion of their workload to these services. The current cloud computing ecosystem contains multiple cloud providers, each with their own menu of these services for their customers to consume on-demand or in some cases even with pre-scoped capacity agreements.<ref>Archived at [https://ghostarchive.org/varchive/youtube/20211205/FxI9wQBOMco Ghostarchive]{{cbignore}} and the [https://web.archive.org/web/20200908085813/https://www.youtube.com/watch?v=FxI9wQBOMco Wayback Machine]{{cbignore}}: {{cite web| url = https://www.youtube.com/watch?v=FxI9wQBOMco| title = Cloud Architecture Fundamentals | website=[[YouTube]]}}{{cbignore}}</ref>

Revision as of 17:29, 22 July 2022

aaS, or XaaS, is an acronym for as a service (e.g., anything as a service), and it refers to a business model in which something is being presented to a customer, either internal or external, as a service.[1] As a Service offerings provide endpoints for customers/consumers to interface with which are usually API driven, but can commonly be controlled via a web console in a user's web browser.

Internally these often complex systems generally possess a high degree of internal automation which generally provide varying levels of fault tolerance and resiliency, the ability to scale up/down in or out to meet capacity and performance requirements of the workloads submitted to the service by its users/consumers, and are usually intended to operate their day to day functions without the need for human intervention. IaaS (Infrastructure as a service) features most commonly included in this automation package are compute, storage, network, telemetry, and logging/accountability features, but most IaaS components owe some portion of their workload to these services. The current cloud computing ecosystem contains multiple cloud providers, each with their own menu of these services for their customers to consume on-demand or in some cases even with pre-scoped capacity agreements.[2]

(X)aaS services have the following features:

  1. They are based on open source projects with little to no licensing costs [citation needed]
  2. Require little to no human intervention to perform their tasks/roles [citation needed]
  3. Could be scaled up or down depending on level / volume needed [citation needed]
  4. Maintained and supported internally by the cloud provider [citation needed]
  5. Use resources that are expendable for reuse by other IaaS tasks and services [citation needed]

Using XaaS services can offer a large cost savings [citation needed] over traditional vendor-provided infrastructure and server based equivalencies. When deciding on XaaS, one has to consider vendor-specific lock-in features which can be more limited than other similar open source projects. [citation needed]

Examples

Legitimate business models

Service Abbr. Also known as
Artificial intelligence as a service[3] AIaaS –
Banking as a service BaaS –
Blockchain as a service
Content as a service CaaS Managed content as a service (MCaaS)
Data as a service DaaS –
Desktop as a service
Database as a service DBaaS –
Data Management as a service[4] DMaaS –
Electric vehicle as a service [5][6] EVaaS –
Function as a service FaaS –
Games as a service GaaS –
Identity as a service IDaaS[7] –
Infrastructure as a service IaaS –
Integration platform as a service iPaaS Cloud-based integration
IT as a service ITaaS IT Management as a Service (ITMaaS)[8]
Knowledge as a service KaaS –
Logging as a service LaaS –
Lighting as a service
Mobility as a service MaaS –
Monitoring as a service
Mobile backend as a service MBaaS Backend as a service (BaaS)
Network as a service NaaS –
Payments as a service PaaS –
Platform as a service Application platform as a service (aPaaS)
Quality assurance as a service[9] QAaaS –
Recovery as a service RaaS Disaster recovery as a service (DRaaS)
Robot as a service –
Security as a service SaaS SECaaS
Software as a service –
Unified communications as a service UCaaS –
Windows as a service[10] [a] WaaS –

Criminal business models

Service Abbr.
Exploit as a service EaaS
Hacking as a service[11] HaaS
Phishing as a service[12] PhaaS
Ransomware as a service[13] RaaS

See also

Notes

  1. ^ A feature made obsolete with the release of Windows 11.

References

Look up -aaS in Wiktionary, the free dictionary.
  1. ^ Robin Hastings, Making the Most of the Cloud: How to Choose and Implement the Best Services (2013), p. 3.
  2. ^ Archived at Ghostarchive and the Wayback Machine: "Cloud Architecture Fundamentals". YouTube.
  3. ^ Lins, Sebastian; Pandl, Konstantin D.; Teigeler, Heiner; Thiebes, Scott; Bayer, Calvin; Sunyaev, Ali (1 August 2021). "Artificial Intelligence as a Service". Business & Information Systems Engineering. 63 (4): 441–456. doi:10.1007/s12599-021-00708-w.
  4. ^ Linkin, Peter (2022). Data Management as a Service for Dummies (PDF). John Wiley & Sons, Inc. ISBN 978-1-119-87093-7.
  5. ^ I. A. Umoren, and M. Z. Shakir, EVaaS: a novel on-demand outage mitigation framework for electric vehicle enabled microgrids. in Proc. IEEE Globecom WS, Abu Dhabi, 2018, p. 6.
  6. ^ I. A. Umoren, S. S. A. Jaffary, M. Z. Shakir, K. Katzis and H. Ahmadi, "Blockchain-Based Energy Trading in Electric Vehicle Enabled Microgrids," in IEEE Consumer Electronics Magazine, doi: 10.1109/MCE.2020.2988904.
  7. ^ Vo, Tri Hoang; Fuhrmann, Woldemar; Fischer-Hellmann, Klaus-Peter (February 2018). "Privacy-preserving user identity in Identity-as-a-Service". 2018 21st Conference on Innovation in Clouds, Internet and Networks and Workshops (ICIN): 1–8. doi:10.1109/ICIN.2018.8401613.
  8. ^ "Global IT Management as a Service (ITMaaS) Market 2014-2018". September 30, 2014.
  9. ^ Phil (February 22, 2017). "QA Services vs QA as a Service: Is There a Difference?". Test IO.
  10. ^ Keizer, Gregg (July 13, 2021). "Say goodbye to all that: Microsoft ends Windows-as-a-Service". Computerworld.
  11. ^ Brian, Vincent (December 2018). Understanding Hacking-as-a-Service Markets (PDF) (MS). Arizona State University. Retrieved 2022-07-22.
  12. ^ "Catching the big fish: Analyzing a large-scale phishing-as-a-service operation". September 21, 2021.
  13. ^ "Ransomware-as-a-service: Understanding the cybercrime gig economy and how to protect yourself". May 9, 2022.
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