Nearc2011 web state of art presentation

GIS Web-sites:Current trends, future directions and the state-of-the-art Version 8 Michael Terner Executive Vice President

Overview • History of this talk • Issues of the day • Mobile devices as a driver • HTML5 vs. other immersive technologies • Impact of cloud-based hosting • Capitalizing on cloud-based map/tile services • Customization vs. templates©2011 Applied Geographics, Inc. Slide 2

HTML5 vs. other immersive technologies • What is HTML5? • W3C standard • Puts onus on browser makers to ensure there is compatibility • Avoids need for 3rd party plug-ins – Like Flash & Sliverlight©2011 Applied Geographics, Inc. Slide 8

“Phone apps” vs “Phone web apps” • Pure phone, e.g., “iPhone app” – Takes better advantage of phone hardware • Camera, GPS, accelerometer, etc. – But, requires standardization on a single phone • Or, building a different app for each phone©2011 Applied Geographics, Inc. Slide 11

“Phone apps” vs “Phone web apps”• Phone-based web-app – Relies on the phone’s browser app – Web pages, HTML5, JavaScript • Can be optimized for small screens • “Adaptive design” – Good access to GPS; camera not yet supported (but coming) – Examples of “minified web pages” http://Maps.google.com http://Touch.Facebook.com©2011 Applied Geographics, Inc. Slide 12

Impact of cloud-based hosting • You don’t need a data center to host web apps – Why buy, when you can rent? – Not just hardware, but also: • Bandwidth • Air conditioning • Can scale applications by adding “virtual hardware” on demand – Of course, software licensing may not be so seamless Image from Paul Ramsay, used with permission.©2011 Applied Geographics, Inc. Slide 13

When do you need to scale? What is a launch spike? Data from WA’s broadband site launch • WA State Pales to FCC’s 1st day of 500,000 visits & 9,000 requests/sec; But still a planning factor.• Governor makes an announcement• Press release is issued• Newspaper runs a story©2011 Applied Geographics, Inc. Slide 14

Cloud based hosting Things to know • Need to understand virtual machines and offerings – IaaS vs. PaaS vs. SaaS • Need to understand the cost model – Fixed costs of virtual hardware ($’s/hour) – Data storage cost • $.14 /GB/Mo = $1,860 /TB/Yr – Usage fees for data access • $.01 /10,000 file accesses means 1,750,000 files = $1.75 • Pushing data onto the cloud can be a bottleneck – How thick is your pipe? – Can send physical drives©2011 Applied Geographics, Inc. Slide 15

Capitalizing on cloud-based map/tile services • Use of other people’s map services – Often national or global in scope – Often for free • Esri has them • Bing, MapQuest, Google • OpenStreetMap (OSM)©2011 Applied Geographics, Inc. Slide 16

Things to understand about cloud-based map tiles/services • Some come with restrictions – Sites must be publicly available – Tiles must be delivered through our API • The rules can change, and costs may be added – Google’s recent announcement: it will cost you money if >25,000 connections/day • Most tiles come in the Web Mercator projection – Cannot reproject tiles on the fly – Performance penalty for reprojecting dynamic services on the fly©2011 Applied Geographics, Inc. Slide 19

Customization vs. templates• Templates provide easier, out-of-the box capability – Both Esri & partners may take this approach – Can be delivered at lowest cost • Write once; deploy many• There are tradeoffs in being more generic – Many applications will all look the same – Can be difficult to customize – Can be difficult to integrate into a workflow – Integrate with a business system – Excellence vs. mediocre©2011 Applied Geographics, Inc. Slide 20

Customization vs. templates • There is room for both approaches • Some templates better than others • Creativity and innovation matter • Focused, workflow-based sites • Site reflects what you want/need – Your site is a public representation of your organization and can be a good place to invest©2011 Applied Geographics, Inc. Slide 21

Conclusions • Web technologies are constantly moving • Standards (W3C, OGC) can be important hedges against technology change • Know your options & make informed choices©2011 Applied Geographics, Inc. Slide 22

Thank You If you have any questions: Michael Terner Executive Vice President mgt@appgeo.com 617-447-2400 If you’d like a copy of the presentation, please leave me a business card and I will email it to you.©2011 Applied Geographics, Inc. Slide 23

Nearc2011 web state of art presentation

by Michael Terner on Nov 15, 2011

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Nearc2011 web state of art presentation — Presentation Transcript