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{{DISPLAYTITLE:as a service}}

"'''{{var|X}} as a service'''" (rendered as '''*aaS''' in acronyms) is a [[Phrasal template|phrasal template]] for any [[Social:Business model|business model]] in which a product use is offered as a [[Finance:Subscription business model|subscription-based service]] rather than as an artifact owned and maintained by the customer. Originating from the [[Software as a service|software as a service]] concept that appeared in the 2010s with the advent of [[Cloud computing|cloud computing]],<ref name="SearchCloudComputing 2022">{{cite web | title=What is XaaS (Anything as a Service)? | website=SearchCloudComputing | date=12 August 2022 | url=https://www.techtarget.com/searchcloudcomputing/definition/XaaS-anything-as-a-service | access-date=24 October 2022}}</ref><ref>Robin Hastings, ''Making the Most of the Cloud: How to Choose and Implement the Best Services'' (2013), p. 3.</ref> the template has expanded to numerous offerings in the field of [[Engineering:Information technology|information technology]] and beyond it. The term '''XaaS''' can mean "anything as a service".{{efn|sometimes called EaaS or "Everything as a Service"<ref>{{cite conference |url= https://www.researchgate.net/publication/308817450|title= Everything as a Service(XaaS) on the Cloud: Origins, Current and Future Trends|last1= Duan|first1= Yucong|last2= Fu| first2= Guohua|last3= Zhou|first3= Nianjun|date= 2015|publisher= IEEE Computer Society|book-title= |pages= 621–628|location= |conference= IEEE 8th International Conference on Cloud Computing|id=|doi=10.1109/CLOUD.2015.88}}</ref>}}

The following is an alphabetical list of business models named in this way, including certain forms of [[Cybercrime|cybercrime]] (criminal business models).

== B ==
 <!--also exists: BPaaS-->
=== Backend as a service (BaaS) ===
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{{excerpt|Backend as a service|only=paragraph|paragraphs=1|hat=no}}

=== Banking as a service (BaaS) ===
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{{excerpt|Banking as a service|only=paragraph|paragraphs=1|hat=no}}

=== Blockchain as a service (BaaS) ===
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{{excerpt|Blockchain as a service|only=paragraph|paragraphs=1|hat=no}}

== C ==
 <!--also exists: CCaaS, CPaaS-->
=== Content as a service (CaaS) ===
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{{excerpt|Content as a service|only=paragraph|paragraphs=1|hat=no}}

== D ==
 <!--also exists: DICaaS, DRaaS-->
=== Data as a service (DaaS) ===
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{{excerpt|Data as a service|only=paragraph|paragraphs=1|hat=no}}

=== Database as a service (DBaaS) ===
With a database as a service model (DBaaS), users pay fees to a cloud provider for services and computing resources, reducing the amount of money and effort needed to develop and manage databases.<ref name=":2">{{Cite book |last=Chao |first=Lee |title=Cloud database development and management |date=2014 |publisher=Taylor & Francis |isbn=978-1-4665-6506-7 |location=Boca Raton |oclc=857081580}}</ref>  Users are given tools to create and manage database instances, and control users. Some cloud providers also offer tools to manage database structures and data.<ref name=":1">{{Cite book |last=McHaney |first=Roger |title=Cloud technologies: an overview of cloud computing technologies for managers |date=2021 |isbn=978-1-119-76951-4 |location=Hoboken, NJ |oclc=1196822611}}</ref> Many cloud providers offer both relational (Amazon RDS, SQL Server) and NoSQL (MongoDB, Amazon DynamoDB) databases.<ref name=":1" /> This is a type of [[Software as a service|software as a service]] (SaaS).

=== Data management as a service (DMaaS) ===
Data management can also be done through the "as a service" business model, according to the book ''Data Management as a Service for Dummies''.<ref>{{cite book|title=Data Management as a Service for Dummies|url=https://www.cohesity.com/resource-assets/ebook/next-gen-data-management-for-dummies-ebook-en.pdf|first=Peter|last= Linkin|publisher=John Wiley & Sons, Inc.|year=2022|isbn=978-1-119-87093-7}}</ref>

=== Desktop as a service (DaaS) ===
{{excerpt|Desktop virtualization#Desktop as a service|paragraphs=1}}

== E ==
=== Energy storage as a service (ESaaS) ===
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{{excerpt|Energy storage as a service|only=paragraphs|paragraphs=1|hat=no}}

=== Exploit as a service (EaaS) ===
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{{excerpt|Exploit as a service|only=paragraphs|paragraphs=1|hat=no}}

===Other "EaaS" business models===
Under the acronym ''EaaS'', the following business models have been discussed in journals and conferences:
*Edge as a service<ref>{{cite conference |title= Edge-as-a-Service: Towards Distributed Cloud Architectures|first1= Blesson|last1= Varghese|first2= Nan|last2= Wang|first3= Jianyu|last3= Li|first4= Dimitrios S.|last4= Nikolopoulos|date= October 27, 2017|publisher= Proceedings of the International Conference on Parallel Computing|book-title= |pages= |location= |arxiv= 1710.10090|conference= EdgeComp Symposium 2017|id=}}
</ref>
*Encryption as a service<ref>{{cite conference|title=Encryption as a Service (EaaS) as a Solution for Cryptography in Cloud|url=https://reader.elsevier.com/reader/sd/pii/S2212017313004684?token=E284DCD827CEA5B49DC4A7BE62F249AC0E5652981D0BDFB1B10106B0DBE0BAE9C69188BBD17878D04EDB0DBFAD196AC5&originRegion=us-east-1&originCreation=20220724235958|first1=Hossein|last1= Rahmani|first2=Elankovan|last2= Sundararajan|first3=Zulkarnain Md. |last3=Ali|first4=Abdullah Mohd|last4= Zin|conference=4th International Conference on Electrical Engineering and Informatics (ICEEI 2013}}</ref>
*Energy as a service<ref>{{cite journal |first1=Vinod |last1=Mawani |first2=Kalleshwar |last2=Kalshetty |first3=Aniket |last3=Kadam |first4=Sagar |last4=Chavan |title=Energy-as-a-Service (EaaS): Interfacing Android Application with Cloud to Save Smartphone Energy |journal=Spvryan's International Journal of Engineering Sciences & Technology |url=http://spvryan.org/archive/issue6volume2/25.pdf |issue=5 |volume=2 |archive-url=https://web.archive.org/web/20180422043420/http://spvryan.org/archive/issue6volume2/25.pdf |archive-date=22 April 2018 |url-status=dead |access-date=25 July 2022 }}</ref>
*Evaluation as a service<ref>{{cite journal|doi=10.1145/3239570|title=Evaluation-as-a-Service for the Computational Sciences: Overview and Outlook|journal=Journal of Data and Information Quality|date=December 2018|pages=1–32|volume=10|issue=4|first1=Frank|last1=Hopfgartner|first2=Allan|last2= Hanbury|first3=Henning|last3= Müller|first4=Ivan|last4= Eggel|s2cid=53115327 |url=http://arodes.hes-so.ch/record/1697 |arxiv=1512.07454}}</ref>

==F==
=== Function as a service (FaaS) ===
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{{excerpt|Function as a service|only=paragraph|paragraphs=1|hat=no}}

==G==
=== Games as a service (GaaS) ===
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{{excerpt|Games as a service|only=paragraph|paragraphs=1|hat=no}}

==I==
 <!--also exists: IDaaS-->
=== Infrastructure as a service (IaaS) ===
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{{excerpt|Infrastructure as a service|only=paragraph|paragraphs=1|hat=no}}

=== Integration platform as a service (IPaaS) ===
{{excerpt|Cloud-based integration#Description|only=paragraph|paragraphs=1}}

=== IT as a service (ITaaS) ===
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{{excerpt|IT as a service|only=paragraph|paragraphs=1|hat=no}}

==K==
=== Knowledge as a service (KaaS) ===
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https://en.wikipedia.org/w/index.php?title=Knowledge_as_a_service&action=edit
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{{excerpt|Knowledge as a service|only=paragraph|paragraphs=1|hat=no}}

==L==
=== Logging as a service (LaaS) ===
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{{excerpt|Logging as a service|only=paragraph|paragraphs=1|hat=no}}

=== Lighting as a service (LaaS) ===
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{{excerpt|Lighting as a service|only=paragraph|paragraphs=1|hat=no}}

==M==
 <!--also exists: MBaaS-->
=== Mobility as a service (MaaS) ===
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{{excerpt|Mobility as a service|only=paragraph|paragraphs=1|hat=no}}

=== Monitoring as a service (MaaS) ===
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{{excerpt|Monitoring as a service|only=paragraph|paragraphs=1|hat=no}}

==N==
=== Network as a service (NaaS) ===
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{{excerpt|Network as a service|only=paragraph|paragraphs=1|hat=no}}

==P==
 <!--also exists: PCaaS-->
=== Payments as a service (PaaS) ===
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{{excerpt|Payments as a service|only=paragraph|paragraphs=1|hat=no}}

=== Philanthropy as a service (PHaaS) ===
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{{excerpt|Philanthropy as a service|only=paragraph|paragraphs=1|hat=no}}

=== Platform as a service (PaaS) ===
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{{excerpt|Platform as a service|only=paragraph|paragraphs=1|hat=no}}

==R==
=== Ransomware as a service (RaaS) ===
<!--FOLLOW THIS LINK TO EDIT:
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{{excerpt|Ransomware as a service|only=paragraph|paragraphs=1|hat=no}}

=== Recovery as a service (RaaS) ===
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{{excerpt|Recovery as a service|only=paragraph|paragraphs=1|hat=no}}

=== Robot as a service (RaaS) ===
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{{excerpt|Robot as a service|only=paragraph|paragraphs=1|hat=no}}

==S==
 <!--also exists: StaaS-->
=== Search as a service (SaaS) ===
<!--FOLLOW THIS LINK TO EDIT:
https://en.wikipedia.org/w/index.php?title=Search_as_a_service&action=edit
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{{excerpt|Search as a service|only=paragraph|paragraphs=1|hat=no}}

=== Security as a service (SECaaS) ===
<!--FOLLOW THIS LINK TO EDIT:
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{{excerpt|Security as a service|only=paragraph|paragraphs=1|hat=no}}

=== Software as a service (SaaS) ===
<!--FOLLOW THIS LINK TO EDIT:
https://en.wikipedia.org/w/index.php?title=Software_as_a_service&action=edit
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{{excerpt|Software as a service|only=paragraph|paragraphs=1|hat=no}}

==See also==
* {{slink|Cloud computing#Service models}}
* "[[Windows as a service]]", Microsoft's attempt to apply the SaaS model to their operating system

==Notes==
{{notelist}}

==References==
{{reflist}}

==External links==
* {{sister-inline|project=wiktionary|links=Search results for English acronyms of phrases containing ''as a service'' at Wiktionary|short=yes}}


{{DEFAULTSORT:aas}}
[[Category:As a service| ]]
[[Category:Business models]]

{{Sourceattribution|As a service}}