anchor.diff:  checking in elements within the model hierarchy.
   
   === WACA Model Compiler Migration
  -WACA represents valuable intellectual property (IP).  It emobodies the
  +WACA represents valuable intellectual property (IP).  It embodies the
   software architecture.  Rules of translation from Shlaer-Mellor platform
   independent models (PIMs) are manifest as a separate concern.  WACA contains
   no application-specific information; it is platform specific.  Multiple
  
positive.code: the same as MASL, the parser in the flow can be replaced to do a similar
  conversion on WASL.  A prototype parser (`WaslParser`) has been written that
  (partially) converts WASL to SMASL.  This allows `m2x` to be reused (with
  a few changes) to populate the xtUML metamodel with instances representing
  the input model.
  
  [options="header"]
  
negative.code: [options="header"]
  |===
  | feature                              | description                                        | parser   | ROM effort
  | keyword highlighting                 | embolden and/or colorize language key words        |          | 1 week
  | automatic indentation                | Indent after `if`, `else`, `loop`, etc.            |          | 2 weeks
  | name validation                      | Validate identifiers with model elements.          | required | 1 month
  | context-sensitive content assistance | auto-completion and selection lists                | required | 2 months
  | rename/refactoring                   | Update activities when model element names change. | required | 4 months
  |===
  
  