Participants of this BOF will discuss Indoor Positioning and Navigation from two viewpoints. The first is the positioning technology viewpoint. Which are the best indoor positioning technologies for which use cases? What have recent studies demonstrated about the accuracy and reliability of different options?

The user's viewpoint will then be our focus. For a variety of reasons users may be required to participate in the process of positioning themselves indoors ("active" positioning). How should developers communicate the instructions for positioning to users? What are the best practices for positioning the targets (markers, marker-less graphics, NFC, etc) for active positioning with respect to the user (user device)?

From declarative 3D rendered using WebGL to JavaScript bindings for proposed AR markup languages, the past year has seen an explosion in efforts from both commercial enterprises, academia, and major standards bodies to make AR and related technologies first-class citizens of the World Wide Web. As progress continues on application formats and browser hybrids, the cross-platform, decentralized, and open nature of web technologies provides a major challenge (but also a great opportunity) for AR practitioners, browser vendors, and most importantly, their potential users. The goal of this session is to explore the current and ongoing efforts related to web-based AR focusing on a range of issues from technical implementation strategies, web standards and technologies, real-world deployments, city-scale services, and other topics relevant to AR on the web from experimental applications to world scalability.

Relevance to ISMAR Attendees: Web technologies will be an important factor in many AR contexts - from experimental applications to commercial web applications and services, this session will chart a course for the future of AR on the web.

ARToolKit is a very widely-used SDK for AR, with a GPL-licensed open-source version and a commercial/education version managed by ARToolworks. This birds of a feather session will be a chance for ARToolKit users attending ISMAR to discuss projects deployed or planned, feature wishlists, tricks and techniques, and plenty more. The session will be coordinated by Philip Lamb, CTO of ARToolworks. Scope will include all ARToolKit variants across desktop, mobile, web and embedded platforms. If you're an ARToolKit user or would like to be, come along and join the community. We will run 5-minute presentations and demos if time allows.

Augmented Reality applications in industrial use cases cope with specific requirements in tracking and workflow integration (e.g. robust markerless 3D tracking in instable illuminations and large workspaces, tracking with CAD reference models, authoring for industrial use cases). These requirements are analyzed and approaches to bring AR to broad application in maintenance support and variance comparison are discussed.

This leads to the questions of how to design industrial AR systems, which technologies to apply to meet the requirements, and which technologies should be in focus of research to improve the use of AR in the industrial context.

BOF Description: Augmented Reality has come a long way in the past few years, but is still used by only a few. Despite the enthusiasm surrounding AR, many new comers into the space (designers, engineers, entrepreneurs) are struggling to find resources, guidance, and funding to help bring their AR initiatives to market.

In this BOF we will discuss questions such as:

• What's the role of a trade organization dedicated to AR?
• What are the challenges to popularize AR in the broad market?
• What can an AR community do to educate developers and the market about the true potential of AR?

In recent years, there has been increasing interest in developing Augmented Reality applications for children, with apps ranging between education, entertainment, marketing, and rehabilitation. Designing innovative AR applications for children is a challenging task, however, because there is little shared knowledge about how children's varying skills and needs are influenced by AR, and because impactful design requires involvement from a variety of stakeholders such as educational advisors, parents and teachers.

This BOF intends to bring together the community of researchers and developers who are involved with children's AR applications, in a lively discussion around the following topics:

• Who is working in the space of AR and children, and what is our individual expertise?
• What are challenges encountered in designing AR for children, and potential solutions?
• How to effectively involve children / parents / educators in the design process?
• What topics should we address in future research?

In the future, we hope to grow the community of children's AR researchers and developers, through the creation of a shared site aggregating research and community contacts. If you are interested in the topic and would like to participate, please let us know and attend the BOF.

In order for Augmented Reality to reach its maximum potential, the applications and content must be open and there should be high interoperability at hardware, software and services/systems layers.

With open and interoperable interfaces, agreed upon protocols available at no cost to users or developers, AR could be popular for presenting information across many domains without requiring the publisher to take any additional steps.

How far are we and what are the developments? During this BOF we will discuss the state of standards that can (already are) being utilized, what strengths or weaknesses there are for existing and emerging standards, and any other topics that participants may wish to raise.