About SAP LIS (Logistics Information System) or BW (Business Information Warehouse), the LIS (Logistics Information System) updating programs is the key to the entire LIS concept is that it:
(more than one answers)
(A) reduce the amount of operational data to its statistically-relevant parts.
(B) copies a duplicate copy of the OLAP database to the LIS structures.
(C) enhanced additional levels of detail for the data extracted into LIS.
(D) checks each transaction data and filter the relevant records before updating into the LIS.
(E) compress data using periodical and object-related cumulation procedures and calculate meaningful key figures from the operational data using formulas and relationships.
.
(more than one answers)
(A) reduce the amount of operational data to its statistically-relevant parts.
(B) copies a duplicate copy of the OLAP database to the LIS structures.
(C) enhanced additional levels of detail for the data extracted into LIS.
(D) checks each transaction data and filter the relevant records before updating into the LIS.
(E) compress data using periodical and object-related cumulation procedures and calculate meaningful key figures from the operational data using formulas and relationships.
.
Answer: A, E
ReplyDeleteB) it does not really copy the OLAP database, but rather extract the relevant set of data for a certain purpose of analysis into LIS structures. These structures are called dimension tables and fact tables. It is these methods of the LIS that allows capabilities such as drill-down that enables analysis for decision making.
ReplyDeleteC) It does not enhance but rather 'summarize' in a way, as the LIS data is for management decision making while the OLTP reporting are for daily use as they are 'flat' records.
ReplyDeleteD) This question is a little awkward as it is believed that while the BW or LIS system is not meant to filter data but to re-structure it for management decision making. The layers of programs during extraction and harmonization; one presume as these are ABAP programs, you can do whatever you like to the in-coming data before staging it into the LIS info structure of BW data cubes. (it is a difficult answer to chose, but personally I would opt it out).
ReplyDeleteIn conclusion, in my opinion A and E are the best answers.
ReplyDelete