Glossary - Legato Docs

Common Legato Terms:

Term	Definition
adef	Application definition file - defines the external interfaces and internal content of apps including bindings, bundles, components and system settings
.api files	Interface definition language (IDL) file for defining function-call-oriented APIs that are used over IPC by programs written in different programming languages than the language used to implement the API. (e.g., the functions defined in the API are implemented in C while a program that calls the API is written in Java)
AirVantage	Sierra Wireless' IoT cloud that allows management of a fleet of remote machines
AT	Instruction set to send commands to a modem - AT Commands
Build Environment	Collection of tools and environment variables to build and deploy applications on the Legato AF
cdef	Component definition file - defines the external interfaces and internal content of software components
Component	Collection of functionally-related source code and other files that are grouped into a single, reusable unit for sharing between projects
Config Tree	Non-volatile data structure that stores configuration values. The trees are accessible through the Config Tree API or the Legato AF config tool
Definition Files	Configuration files that define the system, application, APIs, kernel module or component pieces needed to build your code within the Legato AF
Development Host (Host)	Computer system operated by a human developer to develop (write, build, test, debug) software
Device (target)	Modem, GPS, mangOH, Raspberry Pi, dev kit or any hardware that the Legato AF is deployed on
Developer Studio	Sierra Wireless' Integrated Development Environment
Firmware	Any binary image stored in the target's non-volatile storage; read-only accessible by the device's own software during normal operation. Reboots are required to update firmware on the target
FOTA	Firmware Over the Air - service to upgrade the firmware from a remote location
ifgen	Code generation tool that parses API files and generates include files and IPC code
Legato Application Framework (Legato AF)	Open source application framework designed to encourage reuse and increased speed of development by providing solutions for commonly recurring embedded computing problems
Legato Linux Distribution	Formal Linux distribution including Legato AF, Linux, Yocto, Userland, toolchain, utilities and selected services; everything that Legato depends on in Linux that could be useful to apps, targets or the developer
Legato Platform	Open source platform that includes tools to start development on an embedded system, including standard BSP packages, tools, IDE and the Legato AF
Legato Reference BSP	Software package consisting of kernel, kernel modules, complier and boot-loader for a specific FS/OS/HW target that is currently used to run the Legato platform. Mostly open source, but could include binary or proprietary components depending on the target
mangOH	Sierra Wireless' open hardware platform for IoT
mdef	Module definition file - bundles Linux Kernel Modules for the Legato AF
Sandbox	The core security mechanism for running applications in separate secure containers
sdef	System definition file - builds and interconnects apps with each other and within the runtime environment
SOTA	Software Over the Air - service to update software from a remote location
Supervisor	Daemon process that supervises Legato apps running on the target device; controls the startup, shutdown, and fault recovery of apps; creates and destroys Sandboxes
SMACK	Simplified Mandatory Access Control Kernel - Built-in Linux solution for mandatory access control
Target (device)	Device that the Legato AF is installed onto (e.g. mangOH or Raspberry Pi)
Toolchain	Collection of build tools, including compilers and linkers needed to build programs to run on a target device
Yocto	Open source collaboration project that provides templates, tools and methods to help create custom Linux-based systems for embedded products regardless of the hardware architecture