====== 2021-07-02 ======

===== Heap: =====
==== Class-level Cohesion ====
"In practice, you will come across at least six common ways to group methods."
  * Functional
  * Informational
  * Utility
  * Logical
  * Sequential
  * Temporal
==== DAO ====
Data Access Objects abstract the access to a data source. Allowing a programmer to not be worried about specific implementation aspects. It could even allow for a change of data storage without modifying much in the way of implementation.