Presentation on theme: "An Introduction. DragonDrop is a home-grown, internally developed Drexel software project. Faculty and staff first began using an early version of."— Presentation transcript:
DragonDrop is a home-grown, internally developed Drexel software project. Faculty and staff first began using an early version of the system in 2004. First web-based version became available in 2006. 2007 Campus Technology “Innovators” award
This project was developed as a response to the need to minimize the staff handling time necessary to encode and publish rich media destined for web delivery, and to make access to Drexel’s current archive of web-based on- demand rich media as simple as possible It was determined that the first issue could be addressed by automating the encoding and publishing process. The second would be addressed by using modern content syndication techniques.
The brainchild of John Morris, the director of Academic Technology Innovation at IRT Aka Rich Media Conversion Project (RMCP) Available on-demand only to faculty and staff Offered to partner schools.
RSS (Really Simple Syndication) is XML data, or metadata, which describes or contains content Podcasting describe a new web broadcasting paradigm that combines RSS with web-friendly audio (MP3) and video (MP4) files DragonDrop makes syndication and podcasting easy by publishing media and metadata to the web, but that’s not all…
Capture : Author rich media content Drop : Upload from the Web application Encode : Convert to and from a variety of web ready formats Publish : Push to the web as HTML and RSS Play : Access your published content from anywhere on the web
drop encode publish play capture & TechSmith Relay
Users can select rich media or text files from their hard drives to upload or drop into the system. In this interface users will assign metadata to their upload, as well as select which output formats they’d like to have created from the input source. The output types provided are optimized formats for web delivery.
DragonDrop offers many encoding possibilities to users. The following charts summarizes available output encoding formats, at different quality settings.
Users can author content directly in the DragonDrop web application. This is done using the Capture interface. By hooking into the video and audio from your computer, provided it has a camera and microphone. Videos can be easily record, and then automatically published to a playlist.
Playlists are lists of links (or URLs) that can point to anything that is addressable on the web, which could include media files, websites, images or even other Playlists. Through the Playlist interface users can create and manage their Playlists, add, edit, delete items, re-order items, and edit metadata. Playlists are automatically available to users as HTML and RSS. Playlists can be password protected by their creators.
Rich media content can be managed through the Media interface once it's been ingested. Users can edit media object metadata, preview their files and delete them, as well as spot adding files to existing playlists.
We now allow users to track the progress of the media they’ve dropped into the system as it processes. Once job is complete users will receive an email notification with links to the item and the playlist.
In the Options interface users can manage personal preferences, including: Output templates, which bundle together multiple file encoding outputs for reuse. Surrogate Users, who can be designated to act on a user’s behalf in DragonDrop. Additionally users can manage: Notification Email(s) Personal Profile Registered Phones
Playlist and Media interfaces allow users to search across media and playlist content for their own and content designated as shared by other authors. Users can easily view and add search result items to their playlists.
7,631 items “Dropped” in 2006 3,585 items “Dropped” in 2007 (200 users) By Fall 2008 – 17,000 files : >15,000 hrs of audio and video accumulated over the prior 5 years. Winter 2012 – 57,000 files : 1,400 registered users, 400 active users
Content Creation Capture with Techsmith’s Fuse (Video & Audio) or Techsmith’s Screen Chomp (Whiteboard & Audio). Capture with any other “capture” program (e.g. audio, video (Qik), pictures, office docs, … Content Playback Playback via Playlist – everything except FLV & SWF. Manage most operations
Home Page http://www.drexel.edu/irt/rmcweb TechSmith Relay http://relay.irt.drexel.edu Contact me email@example.com
The challenges, Designing for Density, and Exposing the Myths
Tablets Sold Annually, 2010 - 2020 (est) (in Millions) Source: Jefferies & Co. estimates 2012 Morrisimedia : All Rights Reserved 22
“Without Proper Planning, Enterprises Deploying iPads will need 300% more WiFi” Tim Zimmerman, October 2011 “By 2015, 80% of newly installed wireless networks will be obsolete because of a lack of proper planning” Top Wireless Issues That May Derail Your Mobile Strategy Paul DeBeasi, October 2011 2012 Morrisimedia : All Rights Reserved 23
Christmas 2011 Day Activations ~ 7 Million Daily Activations IOS – 450,000 (est.) Android – 700,000 (est.) Campus Device Increase (Q4 – Q1) Higher Ed – 30 – 40% growth K-12 – Up to 80% What’s Coming? By 2015 over 7.1 billion mobile devices in service Tables are even becoming replacements for printing costs, POS devices, … (e.g. Kindle Fire @ $199) Over 1 Million “New” iPads presold as of March 16 th, 2012 We are at the “Tipping Point” 2012 Morrisimedia : All Rights Reserved 25
Recognizing the Truths BYOD changes everything Can’t just “throw APs” at the problem It will get worse Manage the Clients Bands and Channels Performance Capabilities Appreciate Radio/Client Densities Manage the Users Classification Separation / Optimization Monitoring 2012 Morrisimedia : All Rights Reserved 26
Thank You! 2012 Morrisimedia : All Rights Reserved 27
Design Wi-Fi network for iPads the same as for laptops Laptop capabilities are significantly superior to handheld devices ▪ Laptops have more powerful batteries = higher transmit power ▪ Laptop antennas provide superior gain = greater range and higher signal strength Add more APs (radios) to address increasing densities Adding radios is a key point, not just APs ▪ Requires multi-state radios no the fixed design of most APs (3 vs. 24 channels) ▪ Addressing density is about controlling the number of devices sharing a radio Existing network works fine, should for iPads too Wrong, you need to consider traditional use cases ▪ Laptops used for a variety of use cases and have far superior wireless capabilities ▪ Phones are primary voice devices with limited internet use iPads are extensive users of streaming video ▪ In most studies, video use is 5x that of a phone, requires additional bandwidth ▪ Expecting same QoS capabilities from a handheld device vs. a laptop is a mistake 2012 Morrisimedia : All Rights Reserved 29
Two frequency bands used in Wi-Fi (27 channels) 2.4 GHz – used by 802.11 b/g/n clients 3 non-overlapping channels Limited bandwidth, prone to interference 5 GHz – used by 802.11 a/n clients 24 non-overlapping channels (differs by geo region) 8x the bandwidth, less potential for interference 2012 Morrisimedia : All Rights Reserved 31
What happens if you do nothing? As device density and traffic goes up, so will complaints. Students complaining from areas you never had problems before. Wireless networks that ran fine all of a sudden do not work. 2012 Morrisimedia : All Rights Reserved 32
More Radios* Multi-State radios 2.4GHz / 5GHz Limit iPads per radio ▪ ~15 iPads per 5G radio ▪ ~10 iPads per 2.4G radio Leverage Client “Steering” Services Steer clients toward 5G Steer clients towards higher performance radios Full Coverage for both Wi-Fi bands 2.4GHz as LCD 5GHz for most tables & BEST performance Stronger Signal Strength Laptops required -72dBm (RSSI) Tables / Smartphones require -65dBm minimum * Gartner Group has stated that enterprises will need to deploy 300% more APs for iPads to achieve the same wireless performance as typical laptops. 2012 Morrisimedia : All Rights Reserved 33
Clients – The Weakest Link Client types bring even best networks to its knees ▪ 11n alone does not = performance ▪ 5GHz bands more important than 11n speeds ▪ Clients will connect at different speeds Product Capabilities are the key Understand 2.4GHz vs. 5GHz Always a mix of clients, separate high and low speed clients Move all dual band clients to 5GHz ▪ Higher performance for 5Ghz clients ▪ Higher performance for 2.4GHz clients 2012 Morrisimedia : All Rights Reserved 34
Fixed Radios – clients restricted by radio type 2012 Morrisimedia : All Rights Reserved 35
Multi-State Radios – optimize Wi-Fi services to Clients 2012 Morrisimedia : All Rights Reserved 36
iPads have unique wireless characteristics that must be considered in the network design. 2012 Morrisimedia : All Rights Reserved 37
2011 was first year of BYOD/T 10k devices on network Oct’11 18k devices on network Jan’12 Devices School provides Gemtek devices Some iPads Mostly Apple BYOD devices ▪ iPhones, iPods 2012 Morrisimedia : All Rights Reserved 42
45,000 attendees across 2 million sqft 18,000 unique Wi-Fi users 7,700 unique users in one room (keynote) 4,200 users at once in on 20 multi-state, multi-AP arrays 643 users on 1 array 58 total arrays with 660 radios deployed 2012 Morrisimedia : All Rights Reserved 43