IoT Devices List – D Glossary Terms


IoT has taken over world and in all our lives. You are here means you already know about it.

Whether you are looking for smart homes, IIoT, smart cities, cutting edge computing. We’ve compiled this IoT devices list, IoT protocols list, & Internet Of Things – related phrases that you should be aware of while you dive into connected future. Let us know if we missed something in the comments & provide us with any new terminologies with a good definition. This dictionary of IoT is yours.

IT is part of new era of various endless list of devices. Thus we are only indexing here terms and devices starting with alphabet “D”. Keep following our website for updated IoT list.


The Glossary of Terms – D

Data Filtration

Its a part of Edge Layer which reduces the amount of transmitted information, at same time retains the meaning of it.



A user interface that showcases key information of particular area in a summarized form, often as graphs or other related widgets. This term is derived from the automobile dashboard, the design of interface depends on what IoT related information needs to be monitored or measured.


Data Center

Its a collective term representing the physical site, systems, network elements etc., that supports computing & network services.


Data-Driven Decision Management (DDDM)

It’s an approach to business governance where valuing decisions that can be backed up by verifiable data


Data Janitor

It’s one of subtask of data science where the cleaning up of dirty data or duplicative data is to be done. In general janitor must get sort data into the correct columns.



It’s a term coined by Marc Blackmer, data kinesis occurs when any action is taken in cyberspace has resulted in physical world. For example, Industrial Control Systems, which are vulnerable to datakinetic attacks where physical equipment such as valves &  sensors are compromised & damaged by hackers. Stuxnet is one of such example.


Data Lake

This term is Coined by Pentaho’s CTO James Dixon, a data lake is a massive data repository that is designed to with-hold raw data until it’s needed & to retain data attributes so as to not preclude any future uses or/and analysis. The data lake is stored on generally inexpensive hardware, & Hadoop can also be used to manage data, replacing OLAP as means to answer specific questions. Sometimes also referred to as “enterprise data hub,”. The data lake & its retention of native formats sits in contrast to traditional data warehouse concept


Data Scientist

It’s a job that combines statistics & programming by using languages such as R, this is to make sense of massive data sets. Example – IoT devices and sensors, create huge amount of data, & the data scientist’s role is to extract out of it valuable information & detect any anomalies.



Acronym as Digital Data Storage. This format was used to store computer data on magnetic audio tape. This technology was developed by HP & Sony in 1989 & is based on the digital audio tape (DAT) format. It was widely used technology in 1990s.



The stripping away of any personally identifiable information from data before its use. The process must include removal of both i.e. direct identifiers (like name, email address, etc.) & also proper handling of quasi-identifiers (like sex, marital status, profession, postal code, etc.).


Device-Agnostic Control

Part of the Edge Layer which provides site abstraction that allows the server and/or cloud applications to be agnostic to device implementation it controls.


Degrees of Freedom (DoF)

It’s an engineering concept that is used in MEMS. It describes the directions in which an object can move & generally the number of independent variables in a dynamic system.


Demand Response (DR)

The voluntary reduction of electricity usage by end users as a response to high-demand pricing. Demand response can reduce electrical price volatility during peak demand periods & help avoid system emergencies. Example of DR would be an utility paying Nest that have thermostats turn down air conditioners automatically in empty homes on a hot day.


Device Attack

It’s an exploit that takes an advantage of a vulnerable device to gain access to a network.


DIN Rail

A metal rail used for mounting electrical equipment & racks.


Direct Messaging

A messaging mechanism in which sender & receiver are connected directly or can exchange messages via one or more intermediate hops. In this no hop take ownership of each message and just forward it (routing).


Distributed Generation (DG)

Decentralized, modular, & flexible power generation that is located close to serviced loads. Distributed microgrids can control smaller areas of demand with distributed generation & storage capacity.



Acronym as Do It  Yourself. Enthusiasts generally try out with gadgets or software to improve it’s functionality or to do some custom-install projects in their homes.


DNP3 Protocol

An open, standards-based protocol that is for the electric utility industry with interoperability between substation computers, intelligent electronic devices), remote terminal units & master stations. Its like Groups of enabled things are well organized into namespaces.



Degrees of Freedom



Demand Response.


Domain Model

A model which contains all areas & terms related to a certain field of interest. It includes attributes, constrains, relations, acts, etc., which are relevant for particular task.



It’s a combination of “domestic” & “robotics.” Also a composite of the Latin domus & informatics. It includes home automation systems, home robots, whole house audio/visual systems & security systems. Domotic devices have ability to communicate with each other.



Abbreviated as DL or D/L. It is the process of downloading data onto end node from a server/target address. In a cellular network it would be seen as data being sent from a cellular base station to a mobile handset.



It’s a format for different computer-aided design programs, majorly including AutoCAD. It is used to store two & three dimensional design data & meta data.