In C and C++, the typedef keyword allows you to create an alias for a known data type.

Data Annotations are used by frameworks such as ASP.NET MVC to enable a model-based validation approach and enforce consistent validation throughout the application, both on client and server side. They were first introduced in ASP.NET MVC 2. In addition to ASP.NET MVC, they can also be used with other technologies such as Entity Framework, either through manual placement of attributes on properties, or automatic generation with T4 templates.

urllib2 is a builtin python 2 module that defines functions and classes to help with URL actions. It is notably unsatisfactory and has been replaced in python 3 and by third-party libraries.

SWIG is an interface compiler that connects programs written in C and C++ with scripting languages such as Perl, Python, Ruby, and Tcl.

This tag should be used for questions on how to generate, decode, or use barcodes in programs.

A Drawable is a graphics-related term which generally means "something to be drawn."

Bouncy Castle is a cryptography API providing various cryptography, encryption, and security protocols. There are fairly similar libraries in both C# and Java that implement the API. Additionally, Bouncy Castle provides a JCE-compliant crypto provider for Java.

Client Report Definition (.rdlc) files are files that allow a ReportViewer control to use its built-in processing capability to generate a Sql Server Reporting Services (SSRS) report.

A datepicker widget from jQuery-ui which allows the user to select a date from a popup or inline calendar

A JSON Schema is a JSON document (an object) which defines constraints on what other JSON documents (the instances) should obey; it can also be used to interpret instances so as to provide links to external resources (hyper schema).

Orchard is a free, open source, community-focused Content Management System built on the ASP.NET MVC platform.