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Appendix 1: Comparing Flash (SWF) and SVG file format specifications.

Property SWF SVG
Official W3C Standard No Yes
XML based No, but XML-object and XML-socket available Yes
Embedding foreign XML-namespaces No Yes
Binary/text based Binary Text based
Format can be read by and changed easily by humans No Yes
Accessibility (for people with disabilities) Limited but being developed Yes, see Accessibility features at and guidelines at http://www.w3.org/TR/SVG/access.html
File sizes Most of the time a little more compact than SVG, due to binary format Relatively compact, may be gzipped
CSS (Style sheet) and XSL compatible Partially, only proprietary styles Yes
Can be indexed by search-engines No Yes
Use of entities No Yes
Syntax and validity checks No Yes, DTD and Schema
Needs a plugin? Yes presently Yes, will be a browser technology in the future
Plugin-Size Small, about 200k Large, about. 2.3 MB
Search for text-strings No Yes
View source No Yes
Is text re-useable? (can be selected, copied, spoken by computer, indexed, etc.) The author may define whether a text is selectable, copyable or untouchable Yes
Text along path No Yes
Scripting language, Programming Proprietary, Macromedia ActionScript (close to ECMA JavaScript), may be mixed with ECMA JavaScript ECMA JavaScript, Java Bindings, ActiveX controls
Animation Yes, frame-based/time based; script-based Yes, frame-based/time-based/interpolation-based; script based
Creation of new converters Difficult, because of binary format. Simple, text based, lots of XML parsers/libraries available

Source: summarised from Neumann (2002).

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