Full Form of CUI – What Does CUI Stands For – Abbreviations – Acronyms

#1 Full Form of CUI

Full Form of CUI = character user interface

The character-oriented user interface refers to interfaces that run in text mode, but still, use the screen flat rather than line by line. The term is used to distinguish on the one hand by the line-wise operating command line interface. On the other hand, on the graphical user interface(GUI).


The word is a retronym that was coined after the advent of graphical user interfaces. In English, there is the abbreviation TUI for English text-based user interface, but also English tangible user interface can denote.


The programmer has only the (typically 256 different) characters of a single character set available. Much newer TUIs have tried since the late 1980s to imitate elements of GUIs by using the frame.

And other special characters frames for windows or other elements such as menus, checkboxes, buttons, etc. are simulated. Most of these newer TUIs can be operated with the mouse, but almost all functions are also accessible via the keyboard.

Input masks on mainframes often also have character-oriented user interfaces. The protocol tn3270 sends – in contrast to the character-oriented Telnet – complete input masks to a terminal or a terminal emulation. They are filled out there and sent back to the mainframe via an input key.

Around 1990, Borland developed Turbo Vision as a DOS-based TUI framework. Under Unix-like operating systems, character-oriented user interfaces are often created using curses and ncurses, respectively. The program dialog provides many capabilities of ncurses that can be used without any programming knowledge.


Does the character’s user interfaces have a future?

The main advantages of CUI (that is, with forms and fields, and not with command line interfaces) is the keyboard for navigation and a consistent layout. This is the key.

If your GUI can be fully and efficiently, the keyboard moves, then your user base CUI should be happy. This is due to the fact that over time, users simply dial their commands into the system without viewing the interface. They do not need to discover the interface, which is the main feature of the graphical interface.

Although CUI seems to be dinosaurs, they are still functional and usable. Most people after their training (in particular, POS / Counter employees, but even office scenarios, such as a factory or warehouse floors, etc.) have no problems with using CUI.

But the key is the keyboard support, so the user does not need to wait until the screen catches them. After seeing an experienced operator with keyboard skill, you can make the app fly. You have little chance of seeing pop-ups and what not.

Every study has shown that CUI is much faster for advanced users. GUI is easier for new users and for applications that are used only occasionally. Also for this screen size, you can display additional information about CUI, and then the graphical interface. A good graphical user interface can give you a quick overview at a glance.

Difference between CUI and GUI

The graphical user interface, also known as GUI is a computer program that acts as a user interface, using a set of images and graphics objects to represent the information and actions available in the interface. Its main use is to provide a simple visual environment to allow communication with the operating system of a machine or computer.

Usually, the actions are carried out by direct manipulation, to facilitate the user’s interaction with the computer. It emerges as an evolution of the command line interfaces that were used to operate the first operating systems and is a fundamental piece in a graphics environment. Examples of GUI, include desktop environments Windows, the X-Window of GNU / Linux or the Mac OS X, Aqua.

In the context of the interaction process person – computer, the graphical user interface is the technological device of an interactive system. That allows, through the use and the representation of the visual language, friendly interaction with a system computer.

CUI means that you must use a keyboard to type commands to interact with the computer. You can only type text to give commands to the computer as in MS-DOS or a command prompt. There are no images or graphics on the screen and this is a type of primitive interface.

In the beginning, the computers had to work through this interface and the users who saw it had to face a black screen with white text only. At that time, the use of a mouse was not necessary because the CUI did not support the use of pointing devices. CUIs has gradually become obsolete with the more advanced graphical interface taking their place.

Difference between CUI and GUI

  • CUI and GUI are user interfaces used in connection with computers.
  • The graphical user interface is the precursor to the graphical user interface. And refers to the character-based user interface in which the user must type in the keyboard to continue. On the other hand, GUI stands for Graphical User Interface which allows using a mouse instead of a keyboard.
  • The graphical interface is much easier to navigate than the CUI
  • There is the only text in the case of CUI while there are graphics and other visual cues in the case of the GUI.
  • Most modern computers use a graphical interface and not the CUI
  • DOS is an example of CUI while Windows is an example of a GUI.

Conversational user interface

What is CUI, and why do I need to use CUI in a chatbot?

CUI is a conversational user interface that translates as a sociable interface. This is the concept of a user interface that communicates with the user in the form of a dialogue. Its main task is to simplify user interaction with the product using voice interfaces and instant messengers.

CUI is used in the creation of chatbots and voice assistants, to give them humanity. Nowadays, few people use these principles, the majority set up interaction scenarios intuitively.

The capabilities of bots are limited by the interface of instant and become more user-friendly thanks to CUI.

The computer is multitasking, multi-interface, and multi-window, its interface provides shared multitasking. The user has a wide alternative of actions and possible commands. Browsers, programs, and even instant messengers have this feature, which is not the case with chatbots.

Interaction with the bot happens only through the input line or voice input. Communication with buttons, which are inherently fast commands, takes place through the same line.

The chatbot input interface is similar to the command line interface. And that brings it back to the time when the computers were completely controlled by the command line. And you could give one command at a time. This makes it difficult to understand what to say to the  so that he understands you correctly and does what you expect from him.

When the command line turned into a Norton Commander GUI, the interaction became immediately easier and clearer. It allows you to view all the commands, understand what to press/enter, and how to get the desired result.

Interface capabilities for users can be conditionally placed on the scale of involvement. Where the minimum choice will be for the users of the voice interface, and the maximum for virtual reality (in theory – unlimited choice).

As you can see, the chatbot is in the left half of this scale, after the voice interface. This means that the chat bot’s text interface has slightly more capabilities than the voice interface, but it is still not great. You need to take this into account when creating a bot, and use these features to the maximum.

If the chatbot serves as a substitute for an actual person, then it should:

  • understand like a man;
  • Gives answer like a man;
  • and respond like a man.

When the user is in correspondence with a real person, the person will not require precise input of commands or endlessly ask the same question and ask again. The person will ask additional questions, trying to solve the problem.

So with the help of a well-constructed CUI, the bot will be able to understand what the user expects from him. Even with not precisely entered commands, and give a meaningful answer.

Cui logic for chatbot and voice assistant

The concept of CUI for communication between the user and the bot is based on a large number of possible scenarios. Scenarios are thought out in a dialogue format, where each message from the bot ends with a question or suggestion to the user. The set of scenarios has the form of a decision tree, along which a chain of reactions is formed for each user action.

In order to choose the right scenarios, as well as recognize the meaning of the entered or spoken phrases. Natural speech recognition systems based on machine learning are used.

The quality of a chatbot is rated by the user for its functionality, clarity, and absence of dead ends. And it is the reasonableness of the decision tree that affects the clarity of the chatbot for the user, and the absence of dead ends. There is a simple tool to check her work – botsociety . Botsociety allows you to get rid of all the scenarios in the decision branch in order to find and correct all dead ends.

Sometimes the colloquial CUI format for the chatbot is not enough, or it does not quite fit the format. In such cases, it is worthwhile to combine the outgoing interface (CUI) with the graphical (GUI), and whether to generally exit the bot interface.

Here are just a couple of examples where the chat bot’s sociable interface should be complemented with other elements.

  1. When the user does not trust making important decisions to the bot, knowing that this is not a person. In this case, you need to let the user understand that the final key or the decision check will be carried out by a living person. A bot can simply issue one such message to the user, or provide an opportunity to contact the operator, and the level of trust in the bot will increase.
  2. When there is a need to enter accurate data. To avoid mistakes and simplify the input of important data – it is better to use forms.

To summarize, how does a bot built on a cui work?

Communicating with a bot or voice assistant must comply with the principles formulated by Paul Grice. Communication must be reliable (truthful), informative (informative) and relevant to the direction of the dialogue.

There should not be the only true way that you need to go through to get a result or the need to say strictly defined words. The chatbot must use algorithms in order to use all the possibilities of the language. And make communication close to communication with the person, inviting the user to use other types of interfaces, if necessary.

#2 Full Form of CUI

Full Form of CUI = Cubic Inches

A fragment of a steel ruler, one inch is visually equal to two and a half centimeters

Inch (from the Dutch  – thumb) is the Russian name for the unit of measure of distance. In some European non-metric systems of measures, usually 1/12 or 1/10 (“decimal inch”) feet of the corresponding country (in Russian and English systems of measures 1 inch = 10 lines (“big line”). The word inch was introduced into Russian by Peter I at the very beginning of the XVIII century. Today, the most commonly understood as an inch is an English inch equal to 2.54 cm.

A cubic inch is a unit of volume that is equal to the volume of a cube one inch on the side (exactly 2.54 centimeters). Although it is used in some engineering fields (especially in the USA).  , Canada and the United Kingdom), this unit is not included in the International System of Units (SI).

And therefore it is falling into disuse since in practice the IS is prevailing in almost all countries.  For this reason, usually, the cubic centimeter unit that belongs to the SI is used and is the closest to the cubic inch.


The cubic inch is usually abbreviated as in³ (from English inch ). There is no single symbol. There are also the following abbreviations although they are much less common:

  • inches³, inch³, plg³ (in Spanish), plgs³ (in Spanish)
  • inches ^ 3, inch ^ 3, in ^ 3, plg ^ 3 (in Spanish)
  • inches / -3, inch / -3, in / -3, plg / -3 (in Spanish)
  • ci, pc (in Spanish)
  • Cid, cid and CID in the combustion engines, although the cubic centimeter (abbreviated cm³) is also commonly used here.


1 cubic inch (assuming it is about the inch of the British imperial system, considered the “international inch”) equals:

  • 0005787037037037 cubic feet
  • 000021433470507545 cubic yards
  • 000000013285208992279699 acre-feet
  • 0000000000000039314657292494 cubic miles
  • exactly 16.387064 milliliters or cubic centimeters
  • exactly 0.016387064 liters or cubic decimeters
  • exactly 0.000016387064 kiloliters or cubic meters
  • 1 in³ ≈ 0.00000000000000393146573 cubic miles
  • 1 in³ ≈ 0.554112552 US fluid ounces
  • 1 in³ ≈ 0.069264069 US cups
  • 1 in³ ≈ 0.000465025413 US bushels
  • 1 in³ ≈ 0.00432900431 US liquid gallons
  • 1 in³ ≈ 0.00010307153119 barrels
  • 1 cubic feet = 1728 in³
  • 1 cubic yard = 46656 in³
  • 1 cubic mile = 254358061056000 in³
  • 1 US fluid ounce = 1,8046875 in³
  • 1 cup = 14.4375 in³
  • 1 US bushel = 2150.42 in³
  • 1 US liquid gallon = 231 in³
  • 1 barrel = 9702 in³

General information 

Nonmetric cubic inches

  • 1 cubic inch = 1 inch × 1 inch × 1 inch = 1728 cubic lines
  • 1728 cubic inches = 1 cubic foot
  • 1 cubic inch (Rheinl.) = 9 / 10 Paris cubic inch = 17.857 cm ≈ 1/56000 m³

Paris cubic inch

Paris cubic inches was a widely used reference measure.

  • 1 cubic inch (Paris) = 10 / 9 cubic inches (Rheinl.) = 19.8364 cm ≈ 1/50000 m³

Prussian cubic inches 

The Prussian measure and weight order of 16 May 1816 determined the Prussian measure for all Prussia.

  • 1 cubic inch (Prussia) = 1728 cubic lines ≈ 17.891 cm³ = 0.017891 liters

English customs 

The English inch is exactly 2.54 centimeters long, so a cubic inch has a volume of exactly 16.387064 cc. The US gallon has a volume of exactly 231 cubic inches, the Imperial Gallon since its reform in 1824 is no longer derived from the cubic inch. (Until about the beginning of the 1950s, the English and US customs differed slightly.)

The unit was common throughout the English-speaking world. Since then, most states the metric system by SI standard have adapted the US is the main distribution area, continue to be the exception in the metric size.


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