Important tables in Delta / Data mart Scenarios:

RSSDLINIT:  (BW system): Last Valid Initializations to an OLTP Source
ROOSPRMSC (OLTP system):  Control Parameter Per DataSource Channel
ROOSPRMSF : Control Parameters Per DataSource
RSSDLINITSEL: Last Valid Initializations to an OLTP Source
RSDMDELTA: Data Mart Delta Management
This table contains the list of all the requests which are already fetched by the target system.
ROOSGENDLM: Generic Delta Management for DataSources (Client-Dep.)
RSBKREQUEST:  DTP Request
RSSTATMANREQMAP: Mapping of Higher- to Lower-Level Status Manager Request
RSDMSTAT: Data mart Status Table
This table is used for processing a Repeat Delta. Using field DMCOUNTER we can follow up in RSDMDELTA.
RSMDATASTATE: Status of the data in the Infocubes
This table is used to know the state of the Data Target regarding compression, aggregation etc. For Data Marts the two field DMEXIST and DMALL are used.
RODELTAM: BW Delta Process
ROOSGEN: Generated Objects for OLTP Source
RSSELDONE: Monitor: Selections for executed request
RSSTATMANPART: Store for G_T_PART of Request Display in DTA Administration
RSBODSLOGSTATE: Change log Status for ODS Object
ROOSOURCE: Table Header for SAP BW OLTP Sources
Mainly used to get data regarding Initialization of the Extractor. It contains the header metadata of Datasources, e.g. if the datasource is capable of delta extraction.