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Capabilities Working Group

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Welcome Today s Instructor: Steve Hiebert Chair, CIP4 Product Description WG Software Architect Indigo Digital Publishing Division JDF Capabilities – PowerPoint PPT presentation

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Title: Capabilities Working Group


1
Welcome
Todays Instructor
Steve Hiebert Chair, CIP4 Product Description WG
Software Architect Indigo Digital Publishing
Division
JDF Capabilities
Presentation originally byCraig BensonSenior
Computer Scientist IIAdobe Systems, Inc. and
modified by Dr. Rainer Prosi, Senior Workflow
Architect Heidelberger Druckmaschinen AG
2
Todays Agenda
  • Interoperability
  • Capabilities
  • Workflow
  • PPDs and Schemas
  • Capabilities Theory
  • Capabilities Overview

3
Its all about Interoperability !!!
If you dont know about capabilities, you wont
be able to interoperate
4
Its all about Interoperability!!
But if you do, you can use the right tools
5
What are Capabilities?
  • Capabilities allow actors in the workflow to
    determine what some other actor can do...

6
What are Capabilities?
Of course, theres no requirement that any of the
actors actually be people
7
Who are the actors?
  • Job submission utilities (both to a print shop
    and within the print shop)
  • Print shops
  • MIS systems
  • Prepress workflow managers
  • Applications
  • Individual pieces of equipment
  • Operators of offline equipment
  • And the list goes on

8
What can Capabilities be used For?
  • Determining what products a print shop could
    produce.
  • Allows the creation of JDF Intent (product
    descriptions).
  • Determining what equipment is available in a
    shop.
  • Allows MIS systems to take JDF Intent and
    determine production steps to produce job.
  • Creating a UI to allow configuration of job
    processing for a piece of equipment or
    application.
  • Preflighting a JDF before processing by a JDF
    consumer.

9
An example workflow
RIP
Color Adjust
Prepress Workflow Controller
Trap
Impose
10
An example workflow
RIP
Color Adjust
Ask for capabilities
Prepress Workflow Controller
Trap
Impose
11
An example workflow
Capabilities File
RIP
Color Adjust
Prepress Workflow Controller
Trap
Impose
12
An example workflow
RIP
Color Adjust
Prepress Workflow Controller
Trap
Impose
13
An example workflow
RIP
Color Adjust
The JDFPDF
Prepress Workflow Controller
Trap
Impose
14
Official Warning
Details Ahead!!
15
What about PPDs and Schemas?
  • PPDs (PostScript Printer Driver)
  • Provide basic capabilities information about a
    printer
  • Allow printer options to be configured by
    specifying PostScript snippets
  • Provide a simple constraints mechanism for UI
  • Allow controls to be localized (but typically
    just for the advanced dialog)

16
What about PPDs and Schemas?
  • Schemas
  • Describe the aggregated capabilities of JDF
    (processes resources)
  • Do not support constraints definitions
  • Do not support localizations
  • Do not allow a device to specify a subset of the
    aggregated capabilities

17
So what are Capabilities?
  • XML-based
  • Of course
  • The capabilities description directly reflects
    the structure of the JDF itself.
  • Constrains a device implementation against the
    schema
  • Either the JDF schema or an extension schema
  • Does not require the schema to be used to work

18
But that's not all !!!
19
Capabilities Theory
  • JDF defines a Capabilities Model based on....
  • A Device is the Thing that executes one or more
    JDF Nodes
  • A JDF Node is defined by its resources resource
    links
  • e.g. A Press has a set of allowed Media and a
    set of press parameters

20
Capabilities Theory
  • JDF Parameters are either.....
  • independent of one another, or
  • can be expressed as a list of allowed independent
    sets
  • e.g. a Scanner can scan at 1000 dpi grayscale, or
    500 dpi color
  • May be further constrained by logical boolean
    expressions
  • The Device can print Duplex
  • The Device can print Transparencies
  • Setting Duplex and Transparency at the same time
    is constrained

21
Capabilities Theory
  • Performance may be specified
  • Maximum Average
  • Depending on further Job parameters
  • Allow specification of current and persistent
    capabilities
  • Define defaults and (un)/supported features
  • JMF messages for plug and play in heterogeneous
    environments
  • Specify Localization

22
Device Parameter Space
Area covered by device capabilities

Restriction to 3 dimensions for display purposes
only
23
Capabilities Overview
  • Feature Macros (JDF 1.2)
  • Allows a set of multiple JDF controls to be
    represented by a single abstract control in a
    user interface.
  • ScannerQuality (draft, good, best)
  • sets resolution, color mode,

24
Capabilities Overview
  • Localizations (JDF 1.2)
  • Feature names and individual values can be
    localized (even true and false)
  • Also used with constraints to provide localized
    descriptions (for UI) of the error described when
    the constraint test fails

25
Capabilities Overview
  • Feature Availability (JDF 1.2)
  • The feature is installed on the device and is
    available for use.
  • The feature has not been installed on the device.
  • The feature has been installed on the device, but
    may not be used until licensed.
  • The feature is installed and licensed on the
    device, but has been disabled.

26
Capabilities Overview
  • UI Hints (JDF 1.2)
  • Feature grouping
  • Unit type
  • Angle, length, weight,
  • Whether a feature should be displayed
  • The feature should be displayed.
  • The feature should not be displayed.
  • The feature should be displayed only for
    administrators.
  • The feature should be conditionally displayed.
  • The feature should be displayed only in vendor
    support situations.
  • Icons to represent the device

27
Capabilities Overview
  • JMF (Job Messaging Format) capabilities
  • Which JMF messages are supported
  • Specifics for each message
  • JMF Bootstrapping for Device Discovery

28
Capabilities Overview
  • Performance Data
  • Minimum/Maximum/Average setup time
  • Minimum/Maximum/Average cleanup time
  • Average/Worst case run rate

29
Capabilities Link the Workflow Together !
30
Thanks for Listening
Todays Instructor
Steve Hiebert Chair, CIP4 Product Description WG
Software Architect Indigo Digital Press Division
JDF Capabilities
Presentation originally byCraig BensonSenior
Computer Scientist IIAdobe Systems, Inc. and
modified by Dr. Rainer Prosi, Senior Workflow
Architect Heidelberger Druckmaschinen AG
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