Integrated development environment (IDE), also known as integrated design environment and integrated debugging environment, is a type of computer software that assists computer programmers to develop software. IDEs normally consist of a source code editor, a compiler and/or interpreter, build-automation tools, and (usually) a debugger. Sometimes a version control system and various tools to simplify the construction of a GUI are integrated as well. Many IDEs also integrate a class browser, an object inspector and a class hierarchy diagram, for use with object oriented software development. Although some multiple-language IDEs are in use, such as the Eclipse IDE, NetBeans or Microsoft Visual Studio, typically an IDE is devoted to a specific programming language, as in the Visual Basic IDE.

Integrated-Design Engineering Analysis Software (I-DEAS) was a CAD/CAM software package of SDRC which was bought in 2002 by EDS and now merged into UGS's product NX (Unigraphics). I-DEAS also incorporates Finite Element Method solver for mechanical stress/strain, thermal analysis, and other FEM analysis techniques.

Integrated Database Management System(IDMS) is a (network) CODASYL database management system first developed at B.F. Goodrich and later marketed by Cullinane Database Systems (renamed Cullinet in 1983). Since 1989 the product has been owned by Computer Associates, who renamed it CA-IDMS.

IEEE 829-1998, also known as the 829 Standard for Software Test Documentation, is an IEEE standard that specifies the form of a set of documents for use in eight defined stages of software testing, each stage potentially producing its own separate type of document. The standard specifies the format of these documents but does not stipulate whether they all must be produced, nor does it include any criteria regarding adequate content for these documents.

Interactive geometry software (IGS) are computer programs which allow one to create and then manipulate geometric constructions, primary in plane geometry. One starts construction by putting a few points and using them to define new objects (lines, circles, other points, etc). After some construction is done, one can move the points one starts with and see how the construction changes.

Internet Information Server (IIS), also known as Internet Information Service, is a Microsoft developed system that provides a set of Internet-based services for servers using Microsoft Windows. It is the world's second most popular web server in terms of overall websites behind the Apache HTTP Server although the gap is decreasing. IIS currently supports FTP, SMTP, NNTP and HTTP/HTTPS.

Identity Management (IM) is an integrated system of business processes, policies and technologies that enable organizations to facilitate and control their users' access to critical online applications and resources — while protecting confidential personal and business information from unauthorized users.

International Network of Crackers (INC) was one of the premier cracking/releasing warez for the IBM PC during the very late 1980s and early 90s.The formation of INC was the result of the merger of several cracking groups, including Union, based out of Texas, and the Miami Cracking Machine (MCM), based out of Florida.

Ingres is a commercially supported, open-source relational database management system. Ingres was first created as a research project at the University of California, Berkeley starting in the early 1970s and ending in the early 1980s. The original code, like that from other projects at Berkeley, was available at minimal cost under a version of the BSD license. Since the mid-1980s, Ingres had spawned a number of commercial database applications, including Sybase, Microsoft SQL Server, NonStop SQL and a number of others. Ingres Corporation owns and provides support and services for Ingres, OpenROAD and the connectivity products. In February 2006, Ingres Corporation released Ingres 2006 under the GNU General Public Licence.

An initialization file (INI file) is a configuration file that contains configuration data for Microsoft Windows based applications. Starting with Windows 95, the INI file format was superseded but not entirely replaced by a registry database in Microsoft operating systems. Although made popular by Windows, INI files can be used on any system thanks to their flexibility. They allow a program to store configuration data, which can then be easily parsed and changed.