MAN PAGES // WEEK 23
CONTACT LIST BUILD · Ch 9 Sec 9 · six terms · write your own usage line under each
$ man DATA_MODEL
the shape you choose for your data before coding
$ man RECORD
one entry: here, one contact object
$ man COLLECTION
the array holding all the records
$ man CRUD
create, read, update, delete: the four basic data operations
$ man WALKTHROUGH
building it once together before building it alone
$ man REFACTOR
improving code's shape without changing what it does