As a service

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

*aaS is an acronym for as a service (e.g., X as a service), and refers to something being presented to a customer, either internal or external, as a service,[1] always in the context of cloud computing.[original research?]. As a Service, or XaaS (Anything 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 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]

Because (X)aaS services are generally based on open source projects with little to no licensing costs, ideally require little to no human intervention to perform their tasks/roles, could possibly be scaled out on demand to the full physical resource capacity of an entire datacenter region, are maintained and supported internally by the cloud provider, and use resources that are expendable for reuse by other IaaS tasks and services, XaaS services represent a large cost savings over traditional vendor-provided infrastructure and server based equivalencies, which often include vendor-specific lock-in features and imposed product feature set limitations which focus more around supporting that vendor's product portfolio and feature roadmap than similar open source projects.


Service Abbr.
Analytics as a service AnaaS
API as a service AaaS
Artificial intelligence as a service AIaaS
Backend as a service BaaS
Banking as a service
Blockchain as a service
Big Data as a service BDaaS [3]
Business process as a service BPaaS
Code as a service CaaS
Content as a service
Construction as a service
Container as a service [3]
Crane as a service
(Edge) Compute as a Service [4]
Contact Centre as a service [5] CCaaS
Contact Information as a service CIaaS
Communications Platform as a Service CPaaS
Data as a service DaaS
Desktop as a service
Drone as a service
Distribution as a service
Database as a service DBaaS [3]
Exposure as a service EaaS
Energy as a service EaaS [6]
Energy storage as a service ESaaS
Engagement as a Service ENaaS
Electric Vehicle as a Service [7] [8] EVaaS
Function as a Service FaaS
Farming as a Service
Firewall as a Service FWaaS [9]
Games as a Service GaaS
Governance as a Service [10]
Hadoop as a Service (also BDaaS) HaaS
Hardware as a Service
Housing as a Service
Infrastructure as a Service IaaS [11]
Identity as a Service IDaaS
Image as a Service IMaaS [3]
IoT as a Service IoTaaS
IT as a Service ITaaS
Knowledge as a Service KaaS
Load Balancing as a Service LBaaS [12]
Logging as a Service LaaS
Management as a Service MaaS
Manufacturing as a Service
Microgrid as a Service
Mobility as a Service
Monitoring as a Service
Metal as a Service [13]
Mobile backend as a Service MBaaS
Machine Learning as a Service MLaaS
Media Processing as a Service MPaaS
Network as a Service NaaS [14]
Network Defense as a Service NDaaS
Payments as a Service PaaS
Pigeon as a Service[15]
Platform as a Service [16]
Policy as a Service [17]
Product as a Service
Push Notification as a Service PNaaS
Quality Assurance as a Service QAaaS [18]
RAN as a Service RaaS
Recovery as a Service
Recycling as a Service
Robot as a Service
Search as a Service SaaS
Security as a Service
Software as a Service
Solar Power as a Service[19] SPaaS
Cold|Near Line|Object|Offline Shared Storage as a Service STaaS [20]
Transportation as a Service TaaS
Testing as a Service
Time Series Database as a Service TSDBaaS [21]
Unified Communications as a Service UCaaS
Anything as a Service XaaS [22]

See also[edit]


  1. ^ Robin Hastings, Making the Most of the Cloud: How to Choose and Implement the Best Services (2013), p. 3.
  2. ^
  3. ^ a b c d e "Open Source Cloud Computing Platform Software". OpenStack.
  4. ^ "What is edge computing? | Cloudflare".
  5. ^ "Contact Center as a Service Reviews | Gartner Peer Insights". Gartner. Retrieved 2020-09-22.
  6. ^ "Energy as a Service (EaaS)".
  7. ^ 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.
  8. ^ 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.
  9. ^ "Firewall (FWaaS) Delivered as a Service | Firewall-as-a-Service".
  10. ^ McLean, Richard (Jan 9, 2020). "Governance as a service". Medium.
  11. ^
  12. ^ "OpenStack Docs: Octavia Documentation".
  13. ^ "MAAS | Metal as a Service".
  14. ^ Musthaler, Linda (Apr 5, 2018). "Network-as-a-Service: Modern solution to today's networking challenges". Network World.
  15. ^ "Pigeon". Retrieved 2020-11-05.
  16. ^ Mell, Peter; Grance, Tim (Sep 28, 2011). "The NIST Definition of Cloud Computing" – via
  17. ^
  18. ^,demands%20of%20the%20project%20shift.
  19. ^ "Solar Energy as a Service: Risk Free Solar Energy for All". Amplus Solar. Feb 14, 2017.
  20. ^ "Guide to Cloud Storage Providers".
  21. ^
  22. ^ Dude, Some (Nov 2, 2019). "What Is XaaS?". Some Dude Says.