sap overview

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Presentation Transcript

SAP Overview:

SAP Overview

SAP?:

SAP? Company ERP Software package R/2 R/3

Why ERP:

Why ERP Integration Best business practices Standardization

Why not ERP?:

Why not ERP? Complexity Cost Inflexibility

SAP R/3 System Business Modules:

SAP R/3 System Business Modules Logistical Financial

Slide 6:

R/3 System: Hardware/Software Views

Typical Client Server Architectures:

Typical Client Server Architectures Central System Two - tier Distributed System Two - tier Client/Server Three - tier Client/Server Multi-layer Cooperative Client/Server Presentation Application Database

Slide 8:

Database and Application R/3 System Configurations Central System SAP 2-Tier Configuration 3-Tier Configuration Web-enabled Presentation Database, Application, Presentation Database Application Presentation Internet Transaction Service/Web Service In a central R/3 System configuration, one host is responsible for all processing tasks.

Slide 9:

Database and Application R/3 System Configurations Central Systems SAP 2-Tier Configuration 3-Tier Configuration Web-enabled Presentation Database, Application, Presentation Database Application Presentation Internet Transaction Service/Web Service Two‑tier R/3 System configurations are usually implemented using special presentation servers that are responsible solely for formatting the graphical interface. Many R/3 System users use PCs with Microsoft Windows ‑installed, for example, as presentation servers.

Slide 10:

An alternative two‑tier configuration is to install powerful desktop systems and to use these for presentation and applications (two‑tier client/server). This type of configuration is particularly useful for expensive applications (such as simulations) or for software developers. Database and Application R/3 System Configurations Central Systems SAP 2-Tier Configuration 3-Tier Configuration Web-enabled Presentation Database, Application, Presentation Database Application Presentation Internet Transaction Service/Web Service

Slide 11:

In a three‑tier configuration, you use your own host for the three tiers. Using data from the database server, several different application servers can operate at the same time. To ensure that the load on individual servers is as even as possible and to achieve optimal performance, you can use special application servers for individual application areas such as sales planning, distribution or financial accounting. Database and Application R/3 System Configurations Central Systems SAP 2-Tier Configuration 3-Tier Configuration Web-enabled Presentation Database, Application, Presentation Database Application Presentation Internet Transaction Service/Web Service

Slide 12:

Database and Application R/3 System Configurations Central Systems SAP 2-Tier Configuration 3-Tier Configuration Web-enabled Presentation Database, Application, Presentation Database Application Presentation Internet Transaction Service/Web Service To web‑enable the SAP Applications, a Web Server and an ITS (Internet Transaction Server) are needed. The web‑service and the services for the ITS can run on one server or on two dedicated servers. The presentation in this configuration is provided by an Internet Browser. The new SAP Web platform is NetWeaver.

Basis System: Three-Tier Computer Hierarchy:

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

Client/Server Overview:

Client/Server Overview Client Server LAN/WAN TCP / IP

Client/Server Overview (Logical Structure):

Client/Server Overview (Logical Structure) Presentation Data Storage Application Logic Client Server

Sample SAP System Landscape:

Sample SAP System Landscape Development Testing Production Database Servers Application Servers Presentation Servers

Object Migration:

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 Export Import Export Import

Object Migration:

Object Migration Program A Version 1 Program A Version 2 Program A Version 3 Program A Version 1 Program A Version 2 Program A Version 3 Originals Development QA Testing Corrections and Transport ? ?

Geography-based Clients:

Geography-based Clients R/3 America R/3 Europe R/3 Japan America Client 010 Japan Client 030 Europe Client 020

Client Copies:

Client Copies Configuration Development Interface Testing Quality Assurance User Training

ERP: Integration:

ERP: Integration Integrate people, data and business processes within and between organizations. Collaboration, non-redundancy, consistency and internal process optimization.

Procurement Process:

Procurement Process Outline Agreement Demand Purchase Requisition Vendor Purchase Order Goods Receipt & Inventory Mgmt. Accounts Payable Invoice Verification Scheduling Agreement

Production Process:

Production Process Goods Issue Shop Floor Goods Receipt Order Settlement Schedule/Release

Sales Process — Trading Goods:

Sales Process — Trading Goods Customer Order Picking Goods Issue Billing Accounts Receivable Packing

Sales Process Finished Goods:

Sales Process Finished Goods Customer Order Availability Check Goods Issue Billing Partial Payment Final Payment

Sales Process Finished Goods:

Sales Process Finished Goods Customer Order Availability Check - Insufficient - Independent Demand MRP Run Production Scheduling Purchasing Dependent Demand

Process Flow:

Process Flow Goods Issue to Shop Floor Goods Receipt Production Goods Issue Billing Accounts Receivable

Logging In:

Logging In Basics

Client :

Client This is a numeric field. This number defines a whole business entity.

User :

User Every SAP user has a user name. Users of SAP system are client-specific, which means that having a user identification on one client will only allow access to that particular client.

Password Rules:

Password Rules Letters Numbers Easy to remember 3-8 Characters long No 3 Characters can be the same Do not start with a ? or an ! Do not use previous 5 passwords

Language:

Language SAP supports multi-national character sets and languages on the same system, at the same time. Default languages are English and German.

Field Types:

Field Types There are three types of Entry Fields Required Default entry Optional entry field

Sessions:

Sessions An SAP session is a window in which the user may perform a particular task. A User may have up to nine sessions open at one time.

SAP R/3 Resource Management: The Dispatcher:

SAP R/3 Resource Management: The Dispatcher Data base Application Presentation Buffers Work Process Work Process Work Process Dispatcher SAP GUI Communications

SAP R/3 Resource Management: Data Flow:

SAP Memory Buffer Relational database system SAP GUI SAP R/3 Resource Management: Data Flow Data base Application Presentation Work Process Dispatcher Terminal Process Request queues 1 3 2 4 5 6 7 Roll Page

SAP R/3 Resource Management: Work Processes:

SAP Dispatcher SAP R/3 Resource Management: Work Processes Background Jobs Spool Enqueue Dialog Update Message M Gateway R/2 R/3 G A B C

SAP R/3 Resource Management: Lock Management by the Enqueue Work Process:

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

SAP R/3 Resource Management: R/3 Instance:

SAP R/3 Resource Management: R/3 Instance Dialog . . . . Update Spool Back- ground Enqueue Dispatcher Database Instance Message Server SAP Gateway Instance Profiles (parameters) SAP Buffers Start or Stop Central Instance

SAP R/3 Resource Management: Distributed SAP R/3 Processing:

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

Reporting:

Reporting Three basic steps to running a report Access the report Enter selection criteria Execute the report

Slide 46:

System Messages E - Error An invalid entry has been made. The cursor moves to the field where the error has occurred. W - Warning A possible error has been made. The user can continue without changing. I – Information Feedback from the system.

Customizing - Modeling the Business :

Customizing - Modeling the Business Organizational Structures in each module Master Data - Customers, Materials, … Rules - required entries, tolerances, …

Mapping:

Mapping Assignment of organizational structures to reflect the enterprise model Establishes integration among modules