Dew Computing (version 2)
Dew Computing is an information technology (IT) paradigm, that carries the core concept of Cloud Computing with itself, and tries to exploit the capabilities of end devices (personal computers, mobile phones, and etc.) along with cloud services in such a way that the total experience of the user improves in comparison to only using Cloud Computing.[1] To solve the problems related to Cloud Computing technology, including dependability to internet access, Dew Computing concept was introduced. DropBox is an example of the Dew Computing paradigm. The application, provides access to the files and folders in cloud, even if the internet connection is lost during a period of time. However right after having internet connection established again, the application synchronizes the files and the folder using the connection.[2]
History[edit]
While Cloud Computing (CC) has been expanding rapidly, other models based on the Cloud Computing have emerged, including, Fog Computing, Edge Computing, Dew Computing, and etc. Each of these models using their cutting edge provide better experience for users.[3]
Cloud Computing provides universal access and scalability. However the challenges related to having all the resources far from user’s control, occasionally cause problems. In classic Cloud Computing paradigm in case the Internet connection to the servers is lost, the user would not be able to access his/her data anymore; that’s where Dew Computing can show it’s potential to solve this problem.[2] [4][5][6]
The term Dew Computing as for use in IT first appeared in 2015 in IT literature and from then on has been a field of interest. The Cloud-Dew architecture was proposed as a possible solution to the offline data accessibility problem.[7]
At first, the scope included only web applications, later broader application was proposed.[5]
Definition[edit]
As an information technology paradigm Dew Computing, using the core concept of Cloud Computing, seeks to use the capabilities of personal computers along with cloud services in a more reliable manner providing two main features of independence and collaboration. [1][4][3]
The key features of Dew Computing definition are independence and collaboration. Independence means that the local device must be able to provide service without continuous access to the cloud service and connection to Internet. Collaboration means that the application must be able to connect to cloud service and transfers and synchronize data with the cloud service when appropriate.[6]
The reason behind choosing the word "dew" is that as we know in nature, cloud is far from ground, fog is closer to ground and dew is on the ground. In IT, Cloud Computing is a remote service, Fog Computing is beside the user and Dew Computing is at the user end.
Architecture[edit]
To establish a Cloud-Dew architecture on a PC, an isolated environment for Dew Virtual Machine (DVM) must be provided. The DVM consists of at least three components, Dew Server (DS), Data Analytics Server (DAS), Artificial Intelligence of the Dew (AID). [7]
- Dew Server (DS): The DS acts like the cloud service on the local PC. It interacts with the cloud service and periodically synchronizes contents with the cloud service.[7]
- Dew Analytics Server (DAS): Dew analytics server collects data from user usage of Dew Server. [7]
- Artificial Intelligence of the Dew (AID): The AID, after receiving data from DAS about user usage patterns, uses the data to customize Dew Server and tailor it for the user to enhance the experience. [7]
Categories[edit]
The Dew Computing categories are classifies based on the application field.
- Web in Dew (WiD)
- In WiD category, the end device must posses a copy of a fraction of World Wide Web (WWW). To satisfy the independence feature the model, the end device contains what the user wants from the actual WWW service, and since the end device is supposed to synchronize with the WWW, it satisfies the collaboration feature of Dew Computing. [2]
- Storage in Dew (SiD)
- SiD is the category in which the storage of the end device, is partially or fully copied into the cloud. A good example of this category is DropBox in which a user can create a folder in cloud and have access to the folder and its contents, once the synchronization has been done. Since the user can access the files whenever needed, without continuously needing Internet access, this category meets the independence feature of Dew Computing and since the folder synchronizes itself and the content it also meets collaboration feature of the model.[2]
- Database in Dew (DBiD)
- In this category, the local device and the cloud store copies of the same database. One of these two databases is considered as the main version. Whether the local version is the main one or the one in the cloud is defined by the database administrator. This service increases the reliability of a database since one of the databases can act as the backup for the other.[2]
- Software in Dew (SiD)
- In SiD, the configuration and ownership of a software are saved in the cloud. Good examples of this category are Apple App Store and Google Play in which, the user owns applications based on the account and he/she can have them wherever on whatever device he/she wants to have them on.[2]
- Platform in Dew (PiD)
- In PiD an application must have an installed and running version of a suite of software development and operation on the cloud along with the version in the local device. Software Development Kits like GitHub are fine examples of the category.[2]
- Infrastructure as Dew (IaD)
- IaDs are the category in which one device has a duplicate of itself on the cloud. It can be virtual copy of the machine or device on the cloud or a duplicate of the setting and configuration including everything. In this case the user must be able to have the same system and applications with the same settings if he wishes. Currently only a few cellphone companies provide this service and in case one loses his phone, he can buy a new phone and have a replicate of the old phone’s machine on the new phone.[2]
- Data in Dew (DiD)
- In case one Dew Computing application satisfies the two independence and collaboration feature, but can not be a member of the six other categories, it falls to this categories. Novell Groupwise email client and many cellphone applications are examples of this categories.[2]
Possible Challenges[edit]
Dew Computing faces a number of technical challenges, including issues related to power management, processor utility, data storage, viability of operation system, network model, communication model, programming principles,dew recommender engine, local dew network, personal high productivity, database security, and behaviors of browser. [8]
References[edit]
- ↑ 1.0 1.1 Hu, Yu-Chen; Tiwari, Shailesh; Mishra, Krishn K.; Trivedi, Munesh C., eds. (2018). Intelligent Communication and Computational Technologies. Lecture Notes in Networks and Systems. 19. doi:10.1007/978-981-10-5523-2. ISBN 978-981-10-5522-5. ISSN 2367-3370. Search this book on
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Wang, Yingwei (2016). "Definition and Categorization of Dew Computing". Open Journal of Cloud Computing (OJCC). 3 (1). ISSN 2199-1987.
- ↑ 3.0 3.1 "Doing More with the Dew: A New Approach to Cloud-Dew Architecture - Semantic Scholar". Retrieved 2018-06-30.
- ↑ 4.0 4.1 "Cloud-dew architecture : realizing the potential of distributed database systems in unreliable networks - Semantic Scholar". Retrieved 2018-06-30.
- ↑ 5.0 5.1 "Dew helps ground cloud computing". Retrieved 2018-06-30.
- ↑ 6.0 6.1 Yingwei, Wang, (2015). "The initial definition of dew computing". Dew Computing Research.
- ↑ 7.0 7.1 7.2 7.3 7.4 "Dew Computing and Transition of Internet Computing Paradigms - ZTE Corporation". wwwen.zte.com.cn. Retrieved 2018-06-30.
- ↑ "An Introduction to Dew Computing: Definition, Concept and Implications - IEEE Journals & Magazine". ieeexplore.ieee.org. Retrieved 2018-06-30.
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