Data Abstraction Compound values combine other values together .A date:a year,a month,and a day .A geographic position:latitude and longitude Data abstraction lets us manipulate compound values as units Isolate two parts of any program that uses data: .How data are represented (as parts)Data Abstraction • Compound values combine other values together ! A date: a year, a month, and a day ! A geographic position: latitude and longitude • Data abstraction lets us manipulate compound values as units • Isolate two parts of any program that uses data: ! How data are represented (as parts) 4