Sap overview
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This document provides an overview of SAP R/3 Basis technology including its client/server architecture, application architecture, and system communication methods. It describes the R/3 Basis system, technical architecture with client/server, resource management with work processes and dispatchers, technical configurations for different environments, object migration process, and the R/3 client.
Sap overview
- 1. University of Southern California Enterprise Wide Information Systems SAP R/3 Overview & Basis Technology Instructor: Richard W. Vawter
- 2. University of Southern California Topics The R/3 Basis System Client/Server Architecture Application Architecture System Communication Technical Architecture Client/Server Overview Resource Management Technical Configurations Object Migration The “Database” Client
- 3. University of Southern California SAP R/3 Basis System Sales & Distribution Materials Mgmt. Production Planning Financial Accounting Controlling Fixed Assets Mgmt. Quality Mgmt. Plant Maintenance Human Resources Workflow Industry Solutions R/3 Client / Server ABAP/4 Project System Logistical Financial
- 4. University of Southern California Basis System: Three-Tier Computer Hierarchy Input / Output of data to users Access to Dataase: (Read / Write data) Central Database (Storage of all data) Database Application Presentation Processing of data using application logic Presentation of the processed data to the user
- 5. University of Southern California Typical Basis Systems: Client Server Architecture Central System Two - tier Distributed System Two - tier Client/Server Three - tier Client/Server Multi-layer Cooperative Client/Server (w/ release 4.0B) Presentation Application Database
- 6. University of Southern California Basis System: Application Architecture Windows 3.1, Windows 95, Windows NT, OSF/Motif, Presentation Manager, Macintosh ABAP/4, C, C++ DB2/400 OS/400 Windows ‘95 OS/2 IBM AS/400 AT&T Data General SNI Bull/Zenith HP Sequent Compaq IBM Digital ADABAS D, Oracle 7.1, MS SQL Server 6.0 Windows NT UNIX systems Bull HP SNI Digital IBM SUN AIX SINIX HP-UX SOLARIS Digital UNIX ADABAS D, DB2, INFORMIX, ORACLE 7.1 Hardware Operating Systems Databases Dialog SAPGUI Languages Sold to party: C100 Item Material Qty 10 6301 10 20 6412 10 30 1507 25 O r d e r
- 7. University of Southern California R/3 Communication / Interfaces Remote Function Call Electronic Data Interchange Program Interface CommunicationObject Linking and Embedding Application Link Enabling Web Interface
- 8. University of Southern California Topics The R/3 Basis System Client/Server Architecture Application Architecture System Communication Technical Architecture Client/Server Overview Resource Management Technical Configurations Object Migration The Client
- 9. University of Southern California Client/Server Overview Client Server LAN TCP / IP
- 10. University of Southern California Client/Server Overview (Logical Structure) Presentation Data Storage Application Logic Client Server
- 11. University of Southern California SAP R/3 Resource Management: The Dispatcher Data base Application Presentation BuffersWork Process Work Process Work Process Dispatcher SAP GUI Communications
- 12. University of Southern California SAP Memory BufferSAP Memory Buffer Relational data base systemRelational data base system SAP GUISAP GUI SAP R/3 Resource Management: Data Flow Data base Application Presentation Work Process Dispatcher Terminal Process Request queuesRequest queues 11 33 22 44 55 66 77 Roll Page
- 13. University of Southern California SAP Dispatcher SAP R/3 Resource Management: Work Processes 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1999 Background Jobs Spool Enqueue Dialog Update Message Sold to party: C100 Item Material Qty 10 6301 10 20 6412 10 30 1507 25 O r d e r Sold to party: C100 Item Material Qty 10 6301 10 20 6412 10 30 1507 25 O r d e r Sold to party: C100 Item Material Qty 10 6301 10 20 6412 10 30 1507 25 O r d e r Sold to party: C100 Item Material Qty 10 6301 10 20 6412 10 30 1507 25 O r d e r M Gateway R/2 R/3 G AA BB CC
- 14. University of Southern California SAP R/3 Resource Management: Lock Management by the Enqueue Work Process Work Process Update Work Process Enqueue Dispatcher Work Process Update Work Process Enqueue Dispatcher Lock table in main storage Message Server Instance A Instance B
- 15. University of Southern California SAP R/3 Resource Management: R/3 Instance Dialog . . . . Update Spool Back- ground Enqueue Dispatcher Database Instance Database Instance Message Server Message Server SAP Gateway SAP Gateway Instance Profiles (parameters) Instance Profiles (parameters) SAP BuffersSAP Buffers Start or Stop Start or Stop Central Instance
- 16. University of Southern California SAP R/3 Resource Management: Distributed SAP R/3 Processing Dialog Update Enqueue Spool Dispatcher Mess- age Gate- way Instance 01 Enqueue Dialog . . . Dispatcher Instance 02 Dialog Back- ground Enqueue Dispatcher Instance 03
- 17. University of Southern California Technical Configuration Development Testing Production Database Servers Application Servers Presentation Servers
- 18. University of Southern California Technical Configuration: Example
- 19. University of Southern California Object Migration Program A Table A Screen A Program A Table A Screen A Program A Table A Screen A Development QA Testing Production Corrections and Transport
- 20. University of Southern California Object Migration Program A Version 1 Program A Version 1 Program A Version 2 Program A Version 2 Program A Version 3 Program A Version 3 Program A Version 1 Program A Version 1 Program A Version 2 Program A Version 2 Program A Version 3 Program A Version 3 Originals Development QA Testing Corrections and Transport ? ?
- 21. University of Southern California The Client R/3 America R/3 Europe R/3 Japan America Client 010America Client 010 Japan Client 030Japan Client 030 Europe Client 020Europe Client 020
- 22. University of Southern California Client Copies Configuration Development Interface Testing Quality Assurance User Training
Editor's Notes
- #18: SAP R/3 Technical Configuration An SAP R/3 System can consist of one or more instances (e.g. a central instance or a distributed SAP R/3 System). Multiple instances are represented by the configuration of a database server and one or more application servers. Only one database and dictionary will exist for an SAP R/3 System. Note: with R/4, you can have multiple database instances. To isolate each distinct phase of an implementation, a typical or recommended configuration for an SAP R/3 System implementation will consist of three separate systems: Development: for configuration of SAP applications with user specific data and user development. Quality Assurance Testing: to isolate development from final testing and user training for production. Production: of live business transactions and company data.