In database management systems, a file that defines the basic organization of a database. The users of the database normally dont interact with the data dictionary, it is only handled by the. Stuart ferguson, rodney hebels, in computers for librarians third edition, 2003. With smartphones and other mobile devices, data is a term used to describe any data transmitted over the internet wirelessly by the device. A data dictionary is a file or a set of files that contains a databases metadata.
Most database management systems keep the data dictionary hidden from users to prevent them from accidentally destroying its contents. The use of algebraic notation and structural records allows the analyst to develop the data dictionary and the data flow diagrams using a topdown approach. Learn more in the cambridge englishvietnamese dictionary. Software comprises the entire set of programs, procedures, and routines associated with the operation of a computer system. A data dictionary, or metadata repository, as defined in the ibm dictionary of computing, is a centralized repository of information about data such as meaning, relationships to other data, origin, usage, and format. The data dictionary is very important as it contains information such as what is in the database, who is allowed to access it, where is the database physically stored etc. Computer data is information processed or stored by a computer. Metadata repository a data dictionary catalogs the definitions of.
The data dictionary hold records about other objects in the database, such as data ownership, data relationships to other objects, and other data. Cloud computing dictionary definition cloud computing. Cloud computing it glossary top 50 cloud terms defined. Cloud computing definition of cloud computing by the. Computer data may be processed by the computers cpu and is stored in files and folders on the computers hard disk. The data dictionary is a crucial component of any relational database. The software package for a standalone data dictionary or data repository may interact with the software modules of the dbms, but it is mainly used. See our data plan definition for further information. Major computing disciplines include computer engineering, software engineering, computer science, information systems, and. Free online dictionary of computing foldoc is a searchable dictionary of acronyms, jargon, programming languages, tools, architecture, operating systems, networking, theory, conventions, standards, mathematics, telecoms, electronics, institutions, companies, projects, products, history, in fact anything to do with computing. A data dictionary, or metadata repository, as defined in the ibm dictionary of computing, is a. Although toolbox is very powerful, it is designed to be easy to learn.
Office computing synonyms, office computing pronunciation, office computing translation, english dictionary definition of office computing. Software that acts on behalf of a user as it performs tasks within an application program. Cloud computing definition of cloud computing by merriam. Comparison of data dictionary tools project management. Cloud computing eliminates the capital expense of buying hardware and software and setting up and running onsite data centres the racks of servers, the roundtheclock electricity for power and cooling and the it experts for managing the infrastructure. Cloud computing is a method for delivering information technology it services in which resources are retrieved from the internet through webbased tools and applications, as opposed to a direct. A data dictionary describes the structure and attributes of data items to be used within a software application usually a database. The same is true when designing data systems using case tools computer aided software engineering.
Architecture can be planned upfront andor emerge over time. Computing is the activity of using a computer and writing programs for it. A data dictionary is a collection of descriptions of the data objects or items in a data model for the benefit of programmers and others who need to refer to them. This category is different from the previous in editing capabilities which is a huge difference as providing the descriptions is a key documentation activity. Computer software is programming code executed on a computer processor at either the machinelevel or. Software, instructions that tell a computer what to do. In programming languages, a structured collection of data objects that form a data type. Cloud computing definition is the practice of storing regularly used computer data on multiple servers that can be accessed through the internet. May 21, 2017 a reasonably comprehensive guide to software architecture. Ultimate dictionary is a free software for desktop windows that is as easy to use, as it is to install. The term can have one of several closely related meanings pertaining to databases and database management systems dbms.
Spyware definition, software that is installed surreptitiously and gathers information about an internet users browsing habits, intercepts the users personal data, etc. Data communications, hardware and software basics, digital electronics 9780471104681. Cloud computing cloud computing is the delivery of information technology services over a network, usually the internet. Browse through our list of over 15,000 computer terms and definitions using the above search, browsing by letter, or by clicking one of the links below. Comparison of data dictionary tools this was a very high level overview to see what data dictionary software tools were commonly available and how easy they would be to use. A copy of the license is included in the section entitled gnu free documentation license. Data definition and meaning collins english dictionary.
Cloud computing dictionary definition cloud computing defined. A data dictionary is a centralized repository of metadata. In the cloud computing model, infrastructure, data, and software are hosted by the vendor and delivered to the user as a service, much like a utility company would deliver water or electricity. The data dictionary is an essential component of any relational database. A data dictionary is a file or a set of files that includes a databases metadata. Computing also has other meanings that are more specific, based on the context in which the term is used. The word data is technically a plural noun, as in, the data are being processed. A reasonably comprehensive guide to software architecture. Oracle defines it as a collection of tables with metadata. It includes definitions of acronyms, jargon, programming languages, tools, architecture, operating systems, networking, theory, standards, mathematics, telecoms, electronics, institutions and companies, projects, history, in fact any of the vocabulary you might expect to find in a computer dictionary. Easy to use tool to generate data dictionary, compare database, do spell check and get row counts on all tables. Bookkeeping run database processing passes data quality detector. Originally developed at the isi information sciences institute, which was founded by keith uncapher, internet domain suffixes are what help identify domain names on th.
A first step in analyzing a system of object s with which users interact is to identify each object and its relationship to other objects. Data dictionary entries may be created after the data flow diagram has been completed, or they may be constructed as the data flow diagram is being developed. To translate data to information, there must be several known factors considered. The definition of cloud computing is the service of providing data, resources and software over a network as opposed to receiving them through individual software products downloaded onto the computer. Utilizing the resonance of water molecules in clouds when disturbed by wireless signals to transmit data around the globe from cloud to cloud. Permission is granted to copy, distribute andor modify this document under the terms of the gnu free documentation license, version 1. The factors involved are determined by the creator of the data and. Computing is any activity that uses computers to manage, process, and communicate information. Data dictionaries store and communicate metadata about data in a database. This information may be in the form of text documents, images, audio clips, software programs, or other types of data.
Computing definition and meaning collins english dictionary. A data dictionary includes the names and descriptions of the tables and the fields contained in each table. Computing may encompass the design and development of software and hardware systems for a broad range of purposes often structuring, processing and managing any kind of information to aid in the pursuit of scientific studies, making intelligent. As cloud computing matures, the technology continues to adopt some rather extraordinary functions, including blockchain, edge computing, and something called fog. It includes development of both hardware and software. It also documents information about the data type, field length and other things. Making a data dictionary most database management systems dbms have builtin, active data dictionaries and can generate documentation as needed sql server, oracle, mysql. A data dictionary, also called a data definition matrix, provides detailed information about the business data, such as standard definitions of data elements, their. Mar 06, 2010 an opensource software framework for distributed storage and processing of large sets of data. Data definition the tech terms computer dictionary. Cloud computing meaning in the cambridge english dictionary. This is very useful in database migration and environment comparison. Definitions about consumer technology including internet acronyms, tech lingo, multimedia definitions, words about personal computing and peripherals as well as terms used in wireless and mobile computing. Computing is the process of using computer technology to complete a given goaloriented task.
For example, an information systems specialist will view computing somewhat differently from a software engineer. Computing article about computing by the free dictionary. Computing definition, the use of a computer to process data or perform calculations. Object orientation uses two basic concepts for understanding data and software. Internet terms hardware terms software terms technical terms file formats bits and bytes tech acronyms. Computing is a critical, integral component of modern industrial technology.
The data dictionary is very important as it contains information such as what is. It includes elements such as services, layers, components, relationships, technologies, standards, principles, conventions and constraints. An agent may run on both the client and the server. Jul 27, 2018 a data dictionary contains metadata i. Toolbox is a data management and analysis tool for field linguists. Regardless of the context, doing computing well can be complicated and difficult. Teachict a level computing ocr exam board data dictionary.
You can refer to information as data, especially when it is in the form of facts or. The organizational unit of amazon that provides a variety of cloud services. There are three main cloud computing types, and more are evolving. The term was coined to differentiate these instructions from hardwarei. The data dictionary contains records about other objects in the database, such as data ownership, data relationships to other objects, and other data. It is especially useful for maintaining lexical data, and for parsing and interlinearizing text, but it can be used to manage virtually any kind of data. Most database management systems dbmses, as well as information systems created by computeraided software engineering case tools, contain integrated. An opensource software framework for distributed storage and processing of large sets of data. A data dictionary contains a list of all files in the database, the number of records in each file, and the names and types of each field. Data treated as singular, plural, or as a mass noun is any sequence of one or more symbols given meaning by specific acts of interpretation data or datum a single unit of data requires interpretation to become information.
What is needed is a piece of software that can keep track of all the rules implicit in the database and to. Particular emphasis was placed on whether the software could design database tables as well as simply read from existing databases and whether worklow and process decisions. Browse through our list of over 15,000 computer terms and definitions either by using the above search, browsing by letter, or by clicking one of the links below. Software architecture is the structure of software. The data dictionary hold records about other objects in the database, such as data.
Computer science is the systematic study of computation with respect to computer systems and software applications. It offers an exhaustive collection close to 61 of dictionaries which includes word choices for languages like, english, french, polish and spanish along with glossaries, dictionaries and thesauruses. The use of services made available on the internet for storing data and running software programs. Computer science, or cs, entails both the theory of computation and algorithms used in software applications as well as the design of hardware used in computing devices like pcs, laptop computers, tablets and smartphones.