Representation of different software components for performing a hypothetical holiday reservation inUML
Aninterface description language orinterface definition language (IDL) is a generic term for a language that lets a program or object written in one language communicate with another program written in an unknown language. IDLs are usually used to describedata types and interfaces in alanguage-independent way, for example, between those written inC++ and those written inJava.
IDLs are commonly used inremote procedure call software. In these cases the machines at either end of thelink may be using differentoperating systems and computer languages. IDLs offer a bridge between the two different systems.
AIDL:Java-based, forAndroid; supports local and remote procedure calls, can be accessed from native applications by calling throughJava Native Interface (JNI)
