Appendix A Open-SOurce TOOlS And FrAmewOrkS Blockchain Frameworks Blockchain is an upcoming technology; frameworks listed in the following provide enterprise business blockchain capabilities where DXP assets can be tracked and audited with enabling distributed ledger capabilities. • Hyperledger (https://www.hyperledger.org/) • MultiChain (https://www.multichain.com/) • HydraChain (https://github.com/HydraChain/hydrachain) • Corda (https://www.corda.net/) • Openchain (https://www.openchain.org/) • IOTA (https://www.iota.org/) A DXP uses an open-source blockchain framework and platform to deploy and execute smart contracts and build the DXP’s applications on blockchain infrastructure. Augmented and Virtual Reality Augmented reality (AR) and virtual reality (VR) are increasingly used in technology. It’s reality created by the use of technology to add digital information on an image of something. AR is used in apps for smart phones and tablets. AR applications use one’s mobile or tablet camera to show one a view of the real world and augment information, including text and images, on top of that view. • ARToolkit (https://github.com/artoolkit) • ARKit (https://developer.apple.com/arkit/) • ARCore (https://developers.google.com/ar/) • AR.js (https://aframe.io/blog/arjs/) A DXP uses open-source AR and VR frameworks to build AR-VR applications on top of the DXP’s integrated environment. 329