As I noticed here: https://github.com/samarthgupta437/falcon-regression/pull/248#discussion_r13050249
>ProcessPage will have lineage-related methods

My branch: https://github.com/rostafiychuk/falcon-regression/blob/99ece0dee898982b73098e44cee41741a15ab8e7/merlin/src/main/java/org/apache/falcon/regression/ui/pages/ProcessPage.java
Paul's branch: https://github.com/pisaychuk/falcon-regression/blob/73763ea19f2807dd9cfed627194ac6f87c0ca26a/merlin/src/main/java/org/apache/falcon/regression/ui/pages/ProcessPage.java