IT Strategies and Creation IT Strategies and Creation of Digital Objectsof Digital Objects

Ashok PathakSystems Manager, IIMK

IT Strategies and Creation of Digital IT Strategies and Creation of Digital ObjectsObjects

Building Blocks of Digital Content and their formats

IT Infrastructure Issues

Storage, Backup, Networking, Internetworking

Content Distribution Strategy

Rendering Methods, Access Policies and User Management

Post Service Launch Issues

Elements of Digital ContentElements of Digital Content

TEXT

GRAPHICS

SOUNDVIDEO

ANIMATIONS

Digital ContentDigital Content

IMAGES

Media Type - TEXT

ASCII

HTML

PDF– Open, Multiplatform, Extensible, Trusted and

reliable, Maintain information integrity, Keep information secure, Searchable

Native Application Format

Media Type - Image

• BMP• Uncompressed

• GIF• Lossless, Interlacing, Transparency

• JPEG• Lossy, Progressive

• PNG • Open Standard, combines GIF & JPG

File Size/Quality

Resolution/Size

Bit Depth

Compression

Interlaced ImagesInterlaced Images

IMAGESIMAGES

TransparencyTransparency

IMAGESIMAGES

JPGJPG GIFGIF

Media Type - AUDIO

FORMATS WAV

MP3 (1/10th of WAV)

WMA (1/3rd of MP3)

mp3PRO (1/2 of MP3)

Real Media (very small)

Quality/File Size

Sampling Rate

Bit Rate

Length/Time

Compression Encoding Rate

AUDIO –AUDIO – Quality/File Size Comparison Quality/File Size Comparison

Audio File Formats Compared

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

WMA MP3Pro RA MP3

Audio Quality

File

Siz

e (M

Byt

es)

AUDIO FORMATS – Features ComparisonAUDIO FORMATS – Features Comparison

FeatureFeature MP3MP3 RealReal WMAWMAQualityQuality ExcellentExcellent Very GoodVery Good GoodGood

StreamableStreamable YesYes YesYes YesYes

Encoding Bit RatesEncoding Bit Rates 128128 9696 6464

Plug-insPlug-ins WinampWinamp Real OneReal One Windows MPWindows MP

Encoding TimeEncoding Time HighHigh LowLow MediumMedium

Convertible back to Convertible back to WAVWAV

YesYes With With WinampWinamp

RestrictedRestricted

Availability of Availability of portable playersportable players

WidelyWidely Difficult to Difficult to findfind

AvailableAvailable

Price of portable Price of portable playersplayers

ModerateModerate V V ExpensiveExpensive

ExpensiveExpensive

PopularityPopularity Most Most PopularPopular

PopularPopular ModerateModerate

Media Type - VIDEO

Formats AVI

Quick Time (mov/qt)

Real

mpeg/mpg mpeg-1, mpeg-2, mpeg-4 mpeg-7/21 under

development

Quality/File Size

Bit Depth

Frame Size

Frame Rate

Compression Intra Frame Inter Frame

Tools for Creation of Digital Objects

Text/ASCII

Text Editor DOS: Edit Windows: Notepad

Office Application Suites Word Pad Word star MS-Word WordPerfect

Tools for Creation of Digital Objects HTML

Text Editor DOS: Edit, Windows: Notepad, Linux: VI, Pico, Joe etc.

Netscape Composer Front Page Cool HTML Dreamweaver

PDF Adobe Acrobat AcroPad PDF995

Tools for Creation of Digital ObjectsImages

Graphs/Charts Lotus 1-2-3 MS-Excel Harvard Graphics

Images/Photographs Digital Camera Scanner Special Purpose Image Editing Software

Windows Paint, MS-Photo Editor, PaintShop, CorelDraw, Fractal Design etc

Animated Graphics Special Purpose Image Editing Software

(Flash, Quicktime, Animagic, 3D Studio, AnimatorPro, Adobe After Effects etc.)

Tools for Creation of Digital Objects

Sound

Hardware Required PC Audio Capture Card Speakers and Microphone Audio Source

Software Windows Sound Recorder Special Purpose Audio Recording/Editing

Software (Creative’s Wave Studio, RealOne, Studio Pro, SoundForge, Adobe Premiere, MP3 Encoder, LAVA, Gold Wave etc.)

Tools for Creation of Digital Objects

Streaming Audio Software

RealOne Player

Windows Media Server

Sound Forge Studio XP 5.0

Net Player

Streamworks

Net Streamer

Tools for Creation of Digital Objects

VideoHardware Required

PC Sound Card and Mic Video Capture Card Video Source

Software Windows Media Player Special Purpose Video Recording/Editing

Software (WINAVI 6.0, Real Player, Quick Time, Macromedia, Ulead Media Studio Pro, DCM, Pinnacle Studio, Adobe Premiere/Audition etc.)

Tools for Creation of Digital Objects

Streaming Video Software

RealOne Player

Macromedia

Quick Time

Windows Media Server

Premiere Live Motion

Video Framer

Clipstream

Webmedia

Streamripper

Network Infrastructure

LAN Infrastructure– Topology, Technology, Active Devices, Passive

Components

Building 1

NodesBuilding 2

Building 3UTP 100 Mbps

Core SwitchWorkgroup

Switches

Workgroup Switches

Workgroup Switches

Servers

Other Buildings

Primary OFC

Secondary OFC

UTP 100 Mbps

Nodes

Nodes

UTP 100 Mbps

Network Infrastructure WAN Infrastructure

– Type of connectivity– Speed– Redundancy– Interface– End Devices

Network Security– DoS– Intruders– Hackers– Virus– SPAM– Protection Measures

Network Performance Management

Storage Strategy

Direct Attached Storage (DAS)

Network Attached Storage (NAS)

Servers NAS Nodes

Storage Strategy

Storage Area Network (SAN)

Nodes

Storage Strategy

Backup and Recovery– Determine data to be backed up– Select backup

Equipment – Direct Attached Disk/CD/DVD/DAT/DLT/LTO, Tape Library, Virtual Tape

Library Media

– Zip Cartridges, CDs/DVDs, DAT, DLT, Disks Methods

– file copy, full backup, incremental backup

– Set a backup schedule– Test the backup and restore capability of the backup system

and its media to be sure it really works. – Maintain backup logs– Create and maintain a disaster recover plan– Determine where to store backups so you could recover your

data even if server room or main place of operations is destroyed

Software Infrastructure

Basic Building Software – OS, Web Server, DBMS, DL etc. DL Software Features

File Formats Supported Metadata Standards Interoperability Permanent item address or locator Metadata Search and Full Text Search Workflow User authentication and authorization Customization

Free Vs. Commercial Open Source Vs. Proprietary Availability of Technical Support

Content Distribution Strategy

In form of CDs

Within LAN

Web based

Strategy for Web Based Delivery

Outsourcing Workstation, Scanner, CD-RW, Camera, Audio/Video Accessories

Hosting Service Provider (SP) takes care of Domain/IP, DNS, Security, Storage and hosts the content

Charges based on Storage and downloads Develop content in-house and Upload to SP Server using FTP

SP responsible for hosting and maintaining No need to bother for Server hardware/software and connectivity issues

Strategy for Web Based Delivery

In-house High Speed, dedicated Internet Connection At least 1 public IP Domain Name, DNS Workstation and Content Server Network Security Tools/Firewall Storage (DAS/NAS/SAN/IPSAN) Software Tools – Server OS, Web Server, Perl, Java, Web development Tools etc., Digital Library/Content Management Software

Expertise in Server Administration/ Management

Pros and Cons

Outsourcing No day to day maintenance headaches

Can concentrate fully on content creation/management

No control Software issues Not much of flexibility Download restriction High Recurring Cost

Pros and Cons

In-house Full control on everything Low Recurring Cost Flexible No software issues No restrictions on downloads High initial cost Requires High expertise, Total responsibility

Hardware - Workstation

High Performance Processor High Speed FSB (800 MHz+) Higher Cache (2 MB) Higher Primary RAM (512 MB+) High Quality/Performance Display Adapter (AGP

with 128 MB Memory) CD/DVD-RW Audio Card Video Capture Card High Capacity/Performance Disk Drive (80 GB+

SATA/SCSI) Network Interface Card MIDI/Synthesis Card

Hardware - Server

High Reliability ProcessorHigh Speed FSB (533 MHz+)Higher Cache (2 MB)Higher Primary RAM (1 GB)High Capacity/Performance DAS

(SCSI/SATA) OR SAN/NASBackup Device (DLT/LTO)Dual Network Interface CardRedundant SMPSs (Min. 2)Server Monitoring Tools

Overall IT InfrastructureOverall IT Infrastructure

Network Security/Firewall

LAN

Internet

Redundant Links to Internet

Digital Digital Content Content ServerServer

Storage

WorkstationRedundant Redundant

ServerServer

Post Launch Issues

Service AvailabilityScalabilityBackup and RecoverySystem MaintenanceExtensibility: access to other

resources, systemsCustomizationInternationalization/Multilingual

supportUser Management

Summary

Strategic Planning for:

Content Storage Backup and Recovery Network (LAN/WAN) Network Security Server Workstation Digital Library/Content Management Software

Other Required Software Tools

Thank You