| The Program is embedded in the documentationOnly few programmers want to split their programs in fragments and to organize these as parts of the documentation
Language mixingThe mix of three languages in a single document is not attractive
 Documentation language, programming language, WEB interconnection languageReading and comprehension problems in the WEB-source files
Extra level in error handlingError handling is more complicated because the errors need to be mirrored in the WEB source program
 Reasonable solutions exist
Paper orientationMost existing tools are oriented towards printed paper presentation of the literate program
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