System and Tools Flashcards
What is SAP NetWeaver?
NW is a platform by SAP that helps businesses expedite the building of new solutions while increasing the business value of existing IT infrastructure. It supports cross functional processes and decrease the total cost of ownership (TCO) by decreasing the need for complex customization to integrate SAP with 3rd party solutions and providing a complete life cycle management for all your applications. It helps align people, data and business processes across organizational and technological boundaries.
Name some components of NetWeaver (Read more on this later):
NW is used to build applications and to integrate business processes and databases from various sources by taking advantage of popular technologies like (Java, .net etc). Popular components for functionals: >SAP BW (Business Warehouse) >SAP BPM (Business Process Management) >And more
Explain the R/3 System Architecture:
It is a 3-Tier architecture:
1- The Database Layer receives the data request from the Application Layer.
2- The Application layer interprets the ABAP programs, receives the input from the Presentation layer, sends a request for data to the DB layer, it receives the data and processes the orginal request and sends the the output back to the presentation layer.
3- The presentation layer is where the request and is entered by the user and where the processed information is displayed. Could be the GUI, a printer, a webpage etc.
What is a system landscape (in R/3)?
It is the combination of Dev, Q and Production clients you have.
What is the “R/3 (ABap) Data Dictionary”?
It is the collection collection of logical structures of various objects (Tables, Views, structures) used in Application Development in SAP, which shows how they are mapped to the RDBMS ( the DB Layer) in Tables and Views.
What is a SAP Business Object?
Much like real world object, it is Invoices, Employees, POs etc. that consist of specific tables/programs that are related to each other in a business context. All BO’s are maintained in the BOR (BO repository).
In brief, Methods (“Programs” like check open item status, check posting date etc.) and Attributes (“Characteristics” like Name of vendor, item amount, posting date etc.) together represent a BO in SAP.
How do ABAP programs work?
When you execute an ABAP program (Mostly happens in the background for end-users execpt for Reports), you are telling the system the system to call the program’s processing blocks in a specific order. (Elaborate more later in Possible)
ABAP program types (read up on it later)
Some of the types are: Executable Reports, Module Pools, Function Groups, Class Pools, Interface Pools, Subroutine Pools, Type Groups, Include Programs.
What are tables?
SAP stores all information in the form of tables. it then we carry out any transaction, in which table data goes. Knowledge of tables will help you in preparation of Functional Specification which we provide to technical consultant. Knowledge of table helps us track errors & perform data retrieval operations.
