Table 1


Descriptions of the hypothetical services shown in Figure 1.

ServiceDescription
words.jepstone.net/SpellChecker The most advanced spellchecker in the universe.
words.jepstone.net/Thesaurus A highly sophisticated thesaurus.
apps.microsoft.com/RichTextEditor A full-featured text editor that includes the ability to mark up text with a wide variety of formatting and fonts.
apps.microsoft.com/PlainTextEditor A plain text editor, suitable for editing unformatted Unicode text.
apps.adobe.com/PDFRenderer A rendering engine that generates PDF output.
apps.adobe.com/PSRenderer A rendering engine that generates PostScript output.