Glossary of terms¶

argument¶: Input/Output parameters of a method.
DBMS¶: DataBase Management System.
blind device¶: Device without display (e.g. web server or IoT devices).
DSN¶: Data Source Name. Represents information that tells a program how to connect to a database via a driver.
event¶: Message generated at runtime by an object to signal the occurrence of a situation of interest.
locale ID¶: Label identifying the language and country for the locale of a user interface.
instance¶: Object or variable derived from an object type or variable type, from which it inherits the information model.
locale¶: The set of display settings of a user interface based on country and language.
application logic¶: The set of programming logics whose effects determine the behavior of an application at runtime.
method¶: Action exposed by an object and executable at design time and/or at runtime. It consists of a series of instructions that are executed following the invocation of the method.
information model¶: The set of nodes that describes the structure and characteristics of a project node or of an entire project.
node¶: Elemental unit in an information model. Can be an object, an object type, a variable, a variable type or a method.
ODBC¶: Open DataBase Connectivity. API standard for the client to DBMS connection.
object¶: Node that can contain objects and variables. Used to represent both physical objects (for example a motor) and non-physical objects/features (for example a recipe).
OPC UA¶: Open Platform Communication Unified Architecture. Standard for machine to machine communication for Industry 4.0.
Presentation engine¶: Object which at runtime creates an interactive session to display the user interface.
property¶: Non-detachable variable of a node. In the C# environment, a non-detachable element of a class.
Q Application¶: HMI or IoT application generated by Q Studio. It is run on a target system.
Q Studio¶: UNIQO IDE (Integrated Development Environment). Visual environment for designing and publishing HMI or IoT applications.
session¶: During execution of a Q Application, runtime context in which a user runs read and/or write operations based on their permissions.
interactive session¶: Session generated by a Presentation engine and that has an interactive user interface.
tag¶: PLC variable.
target¶: Systems/device on which a Q Application can be run, for example a HMI panel, a web server or an IoT device.
type¶: Model of object or variable from which other objects or variables will be derived, called instances, which inherit the same information model.
native type¶: Object type or variable type included in the UNIQO installation.
URI¶: Uniform Resource Identifier. A sequence of characters that uniquely identifies a resource.
UUID¶: Universally Unique IDentifier. Universally Unique Identifier.
variable¶: Node that represents the value of a figure. Can contain other variables.
structured variable¶: Variable which contains other variables, for example an analog variable.
widget¶: Reusable graphical object, which can contain other objects and/or variables. It is designed for a specific purpose of use at runtime (for example a panel for configuring users).