A PERA "Windchime" is shown with each Methodology to indicate how it may be used within the overall PERA "GERAM" (Generalized Enterprise Reference Architecture and Methodology).
PERA divides an enterprise into 3 "elements"
These are shown color-coded on the right.
PERA also divides the enterprise into 7
"Phases",( as shown on the right ). Sometimes the names of these Phases
differ (for example "Construction" may be called "Implementation" in a
service industry which requires minimal physical facilities).
The "Windchime" presented with the description of each methodology
indicates (with a yellow background) which Phases and which Elements of
an enterprise would typically use that methology.