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"X as a service" (rendered as *aaS in acronyms) is a phrasal template for any business model in which a product use is offered as a subscription-based service rather than as an artifact owned and maintained by the customer. The converse of conducting or operating something "as a service" is doing the same using "on-premise" assets (such as on-premises software) or lump sum investments. Originating from the software as a service concept that appeared in the 2010s with the advent of cloud computing, [1] [2] the template has expanded to numerous offerings in the field of information technology and beyond it. The term XaaS can mean "anything as a service". [a]
The following is an alphabetical list of business models named in this way, including certain forms of cybercrime (criminal business models).
Blockchain as a service (BaaS) is an enterprise-level software service [13] that allows businesses to use cloud-based solutions to build, host and use their own blockchain apps, smart contracts and functions on the blockchain infrastructure developed by a vendor. Just like the growing trend of using software-as-a-service (SaaS) [14]
where access to the software is provided on a subscription basis, BaaS provides a business with access to a blockchain network of its desired configuration without the business having to develop their own blockchain and build in-house expertise on the subject. [15]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. [20] 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. [21] Many cloud providers offer both relational (Amazon RDS, SQL Server) and NoSQL (MongoDB, Amazon DynamoDB) databases. [21] This is a type of software as a service (SaaS).
Data management can also be done through the "as a service" business model, according to the book Data Management as a Service for Dummies. [22]
DDoS-as-a-Service (DDoSaaS) is a cybercrime model in which individuals can hire hackers to execute an distributed denial-of-service (DDoS) attack against a specified target for a fee, typically paid in cryptocurrency, making such attacks more accessible to those without technical expertise. [23]
Remote desktop virtualization can also be provided via cloud computing similar to that provided using a software as a service model. This approach is usually referred to as cloud-hosted virtual desktops. Cloud-hosted virtual desktops are divided into two technologies:
Under the acronym EaaS, the following business models have been discussed in journals and conferences:
GSaaS means outsourcing ground operations to a third-party provider by the satellite operators. [32] [33] [34]
Phishing as a service allows cybercriminals with little technical skills or without resources to launch sophisticated phishing attacks by providing access to a phishing kit. [49]
Transportation as a Service (TaaS) is a transportation system where customers have use of a vehicle over just the time they need it and use of the vehicle may also be shared with other customers.
Workspace as a Service (WaaS) is a desktop virtualization utilised by companies to offer to employees a complete computer environment with remote access.
Unfortunately, the business world has given this baby a jargony name: data as a service, or its diminutive, DaaS.
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