[draft report] Use PDF format instead of PPTX for presentations

supporting-material-uploads/report/report.md

@@ -20,7 +20,7 @@ This report concludes that the next step forward for this initiative should be n
 <h3 id="introduction">Introduction</h3>
 
 
-Natural Resources Canada (NRCan) sponsored the first joint workshop on standardizing Maps for the Web, which took place online from September 21st to October 2nd, 2020. The workshop was co-lead by the World Wide Web Consortium (W3C) and the Open Geospatial Consortium (OGC), and convened an organizing committee of individuals from NRCan, W3C, OGC, Environment and Climate Change Canada (ECCC), the US’ National Geospatial Intelligence Agency (NGA), the US’ National Aeronautics and Space Administration (NASA), as well as volunteers from the Maps for HTML community.  The workshop was initially scheduled to be an in-person workshop co-located with the OGC Technical Committee meeting in June of 2020, but was cancelled, then re-scheduled under an online virtual format,due to the COVID-19 pandemic.  The workshop was open to the public free of charge.
+Natural Resources Canada (NRCan) sponsored the first joint workshop on standardizing Maps for the Web, which took place online from September 21st to October 2nd, 2020. The workshop was co-lead by the World Wide Web Consortium (W3C) and the Open Geospatial Consortium (OGC), and convened an organizing committee of individuals from NRCan, W3C, OGC, Environment and Climate Change Canada (ECCC), the US’ National Geospatial Intelligence Agency (NGA), the US’ National Aeronautics and Space Administration (NASA), as well as volunteers from the Maps for HTML community.  The workshop was initially scheduled to be an in-person workshop co-located with the OGC Technical Committee meeting in June of 2020, but was cancelled, then re-scheduled under an online virtual format, due to the COVID-19 pandemic.  The workshop was open to the public free of charge.
 
 A call for positions, papers and talks was issued over the Web from the workshop [website](https://www.w3.org/2020/maps/), which was promoted jointly through the W3C and OGC membership communications channels. The workshop was organized by theme, with all themes notionally centred on the idea of standardization of maps in the Web platform. Themes included: accessibility, internationalization, privacy and security, performance, augmented reality, Web map standards and technology, and stakeholder perspectives.
 
@@ -34,9 +34,9 @@ Over 150 [registrations](https://www.w3.org/2020/maps/supporting-material) were
 
 The wide variation in Web Content Accessibility Guidelines (WCAG) failures of existing Web map techniques was the subject of an [analysis](https://www.w3.org/2020/maps/supporting-material-uploads/presentations/Nic_Chan/index.html) done by Nic Chan and Robert Linder.  In short, none of the evaluated Web mapping frameworks meet all the WCAG 2.1 success criteria, and there exists a wide range in the number of frameworks which may pass individual criteria, from none, to all of those evaluated.  As a result of the evaluation, some of the framework maintainers took steps to improve the accessibility of the framework, which is a great start for outcomes from the workshop.
 
-A summary of [requirements](https://www.w3.org/2020/maps/supporting-material-uploads/presentations/Nicolo_Carpignoli-Maps-for-the-Web.pptx) for accessible Web maps was presented by Nicolò Carpignoli and Joshue O Connor.  One of the important needs outlined by them is for accessible text-based geolocated “annotations”.  In view of standard geographic models, we believe the usage of “annotations” in the context of maps can broadly be interpreted to mean integration of the OGC Simple Features standard model into the HTML standard. Such integration makes sense in the context of browser support of maps, but little sense without such context (how does the user agent know where to render the feature?).  Consequently, the requirements seem to implicitly endorse the basic notion of integrating maps into the HTML and related accessibility standards (CSS, ARIA, WCAG).  Further support for the layer-based model of maps, as a means to isolate information from surrounding “noise” was presented.  
+A summary of [requirements](https://www.w3.org/2020/maps/supporting-material-uploads/presentations/Nicolo_Carpignoli-Maps-for-the-Web.pdf) for accessible Web maps was presented by Nicolò Carpignoli and Joshue O Connor.  One of the important needs outlined by them is for accessible text-based geolocated “annotations”.  In view of standard geographic models, we believe the usage of “annotations” in the context of maps can broadly be interpreted to mean integration of the OGC Simple Features standard model into the HTML standard. Such integration makes sense in the context of browser support of maps, but little sense without such context (how does the user agent know where to render the feature?).  Consequently, the requirements seem to implicitly endorse the basic notion of integrating maps into the HTML and related accessibility standards (CSS, ARIA, WCAG).  Further support for the layer-based model of maps, as a means to isolate information from surrounding “noise” was presented.  
 
-The state of accessible indoor locations and maps was [described](https://www.w3.org/2020/maps/supporting-material-uploads/presentations/Claudia_Loitsch_Julian_Striegl.pptx) by Claudia Loitsch and  Julian Striegl, whose research has shown that the coverage of indoor maps is today very low, and what is more, there exists no single standard today for how maps and geographical data should be made accessible for different contexts and diverse user needs.  They conclude that because the market for indoor map data is forecast to grow significantly in the coming years, the aforementioned problems represent the perfect opportunity to develop such standards, before such efforts are expended and potentially wasted.
+The state of accessible indoor locations and maps was [described](https://www.w3.org/2020/maps/supporting-material-uploads/presentations/Claudia_Loitsch_Julian_Striegl.pdf) by Claudia Loitsch and  Julian Striegl, whose research has shown that the coverage of indoor maps is today very low, and what is more, there exists no single standard today for how maps and geographical data should be made accessible for different contexts and diverse user needs.  They conclude that because the market for indoor map data is forecast to grow significantly in the coming years, the aforementioned problems represent the perfect opportunity to develop such standards, before such efforts are expended and potentially wasted.
 
 Physical accessibility relates to facilities that provide access to people with physical disabilities, such as wheelchair ramps and so on.  Sebastian Felix Zappe of WheelMap.org [suggests](https://www.w3.org/2020/maps/supporting-material-uploads/presentations/Sebastian_Felix_Zappe_Holger_Dieteric.pdf) that maps in HTML could be used for “disability mainstreaming”, that is, ensuring that accessibility information becomes part of all map services on the Web through standards.