Open standards

UIML (User Interface Markup Language) is an XML-based user interface markup language for defining user interfaces on computers.

Open architecture is a type of computer architecture or software architecture that is designed to make adding, upgrading and swapping components easy.

Bitmessage is a decentralized, encrypted, peer-to-peer, trustless communications protocol that can be used by one person to send encrypted messages to another person, or to multiple subscribers.

Open systems are computer systems that provide some combination of interoperability, portability, and open software standards.

LV2, an acronym for Linux Audio Developer's Simple Plugin API (LADSPA) version 2, is an open standard for audio plug-ins and matching host applications.

An open standard is a standard that is publicly available and has various rights to use associated with it, and may also have various properties of how it was designed (e.g. open process).

PCI-X, short for Peripheral Component Interconnect eXtended, is a computer bus and expansion card standard that enhances the 32-bit PCI local bus for higher bandwidth demanded mostly by servers and workstations.

Qi (pronounced CHEE; IPA: /tʃiː/, coming from the Chinese word meaning "natural energy") is an interface standard developed by the Wireless Power Consortium for inductive electrical power transfer over distances of up to 4 cm (1.6 inches).

Digital Living Network Alliance (DLNA) (originally named Digital Home Working Group [DHWG]) was founded by a group of consumer electronics companies in June 2003 (with Sony in the lead role) to develop and promote a set of interoperability guidelines for sharing digital media among multimedia devices under the auspice of a certification standard.

The RVU Alliance (RVUA) is a standards body created to manage the RVU protocol standard as used by manufacturers of consumer electronics to allow entertainment devices within the home to share their content with each other across a home network.

The Open Management Infrastructure stack (OMI, formerly known as NanoWBEM) is an open-source CIM management server sponsored by The Open Group and made available under the Apache License 2.

The Open Connectivity Foundation (OCF) is an industry group whose stated mission is to develop standards and certification for devices involved in the Internet of Things (IoT) based around Constrained Application Protocol (CoAP).

Peerio is a cloud-based encrypted communications suite developed by Nadim Kobeissi and Florencia Herra-Vega and released on 14 January 2015.

Z-Push (presumably Z is for Zarafa) is a FOSS implementation of the Microsoft Exchange ActiveSync protocol which is used to synchronize email, personal contacts and other items between a central server and a mobile device.

AllJoyn was a collaborative open source software framework that allows devices to communicate with other devices around them.