Enterprise Wide Information Systems SAP R/3 Overview

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Enterprise Wide Information Systems SAP R/3
Overview Basis TechnologyInstructor
Richard W. Vawter
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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

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SAP R/3 Basis System
Logistical
Financial
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Basis System Three-Tier Computer Hierarchy
Central Database (Storage of all data)
Access to Dataase (Read / Write data)
Database
Input / Output of data to users
Processing of data using application logic
Application
Presentation of the processed data to the user
Presentation
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Typical Basis Systems Client Server Architecture
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Basis System Application Architecture
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R/3 Communication / Interfaces
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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

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Client/Server Overview
Server
LAN
TCP / IP
Client
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Client/Server Overview (Logical Structure)
Server
Client
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SAP R/3 Resource Management The Dispatcher
Presentation
SAP GUI
Communications
Application
Dispatcher
Work Process
Work Process
Work Process
Buffers
Data base
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SAP R/3 Resource Management Data Flow
Presentation
SAP GUI
Terminal Process
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Application
Request queues
Dispatcher
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SAP Memory Buffer
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Work Process
Roll
Page
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Data base
Relational data base system
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SAP R/3 Resource Management Work Processes
A
B
SAP Dispatcher
C
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SAP R/3 Resource Management Lock Management by
the Enqueue Work Process
Instance A
Message Server
Dispatcher
Work Process Update
Work Process Enqueue
Instance B
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SAP R/3 Resource Management R/3 Instance
Database Instance
Instance Profiles (parameters)
Message Server
SAP Gateway
SAP Buffers
Instance
Start or Stop
Central
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SAP R/3 Resource Management Distributed SAP R/3
Processing
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Technical Configuration
Database Servers
Application Servers
Presentation Servers
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Technical Configuration Example
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Object Migration
Corrections and Transport
Development
QA Testing
Production
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Object Migration
Corrections and Transport
Development
QA Testing
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
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The Client
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Client Copies