Glossary

Data Acquisition (DAQ) is the collection and measurement of signals from sensors, transducers, and probes for processing.

A graphical representation of the analyses performed by the algorithms

The act or method of viewing or retrieving stored data.

The act of collecting data from multiple sources for the purpose of reporting or analysis.

The act of reviewing and revising data to remove duplicate entries, correct misspellings, add missing data, and provide more consistency.

Any process that captures any type of data.

A set of processes or rules that ensure the integrity of the data and that data management best practices are met.

The process of combining data from different sources and presenting it in a single view.

The measure of trust an organization has in the accuracy, completeness, timeliness, and validity of the data.

The access layer of a data warehouse used to provide data to users.

The process of moving data between different storage types or formats, or between different computer systems.

The process of deriving patterns or knowledge from large data sets.

the analysis of data objects using data modelling techniques to create insights from the data

An individual item on a graph or a chart.

The process of collecting statistics and information about data in an existing source.

The measure of data to determine its worthiness for decision making, planning, or operations.

Registers used for indirect addressing with index registers. Data registers are used to specify offsets calculated by adding the contents of the data register to an index register.

The process of sharing information to ensure consistency between redundant sources.

The location of permanently stored data.

A recent term that has multiple definitions, but generally accepted as a discipline that incorporates statistics, data visualization, computer programming, data mining, machine learning, and database engineering to solve complex problems.

The practice of protecting data from destruction or unauthorized access.

A collection of data, typically in tabular form.

An attribute that specifies the data size of a symbol from the initial address in the I/O memory and the type of data stored there. It includes BOOL, INT, REAL, WORD, STRING, etc. Data types are used to monitor the values in I/O memory with CX-Programmer.

A visual abstraction of data designed for the purpose of deriving meaning or communicating information more effectively.

A place to store data for the purpose of reporting and analysis.

Using data to support making crucial decisions.

different types of information stored by the computer, for example floats, integers and strings.

a digital collection of data stored via a certain technique

Software that collects and provides access to data in a structured format.

Acronym of Distributed Component Object Model.

A Distributed Control System (DCS) is a control system method that is spread, or distributed, among several different unit processes. Controller elements are not central in location but are dispersed throughout the system with each component sub-system controlled by one or more controllers. The entire system of controllers is connected by a network for communication and monitoring. A DCS is typically a single-vendor solution that includes multiple PLCs, an HMI, a Process Historian, and configuration software. Consequently, a DCS is very tightly integrated and is theoretically easier to configure than the multi-vendor combination of the above components.

Know what code is supposed to do before trying to debug it.

a value given to an argument or variable as a starting point.

A value to use for a parameter if nothing is specified explicitly.

A character or characters used to separate individual values, such as the commas between columns in a CSV file.

Delta robots (also called parallel robots) have three robotic arms in the shape of parallelograms. Usually, the delta robot is located above the workpieces, attached to an overhead trestle. Because all the motors are on the base, the joints and arms of the robot are very light compared to other robots. The Delta robot has an upside-down dome-shaped work envelope.

OPC Client can issue a Device Read from the OPC Server. The OPC Server will understand that it should ignore the value it has in its cache (if any) and reply with a fresh value from its original data source. Consequently, a Device Read takes longer to complete than a Cache Read, but the value will be more recent.In OPC, a Device Read can either be a synchronous or asynchronous operation.

Dynamic Host Configuration Protocol: a method for automatically assigning IP addresses; addresses are

An associative array, where arbitrary keys are mapped to values. The keys can be any object with __hash__() and __eq__() methods. Called a hash in Perl.

The objects returned from dict.keys(), dict.values(), and dict.items() are called dictionary views.

A Distributed Control System (DCS) is a control system method that is spread, or distributed, among several different unit processes. Controller elements are not central in location but are dispersed throughout the system with each component sub-system controlled by one or more controllers. The entire system of controllers is connected by a network for communication and monitoring.

(DMS) A SCADA server tailored for the energy distribution companies.

A memory area in which data is read and written in 16-bit units.

Human-language text written to explain what software does, how it works, or how to use it.

An open source distributed system for performing interactive analysis on large-scale datasets. It is similar to Google’s Dremel, and is managed by Apache.

(DDE) A form of inter-process communication that uses shared memory to exchange data between applications and provides a standard set of commands and message formats. Applications can use DDE for ongoing exchanges between them whereby they advise one another as data changes or events are triggered. Another facility, NetDDE, allows progams to converse across networks.