Sap Overview
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System Applications & Products World’s largest business
software company. Founded in 1972 by five IBM
engineers in Mannheim but later on the headquarters were moved to Walldorf in the year 1976.
Henning Kagermann became the sole CEO of SAP in the year 2003.
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Business & Markets…
Regions of operation: EMEA The Americas Asia Pacific Japan (APJ)
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Business & Markets…
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Products… Enterprise Resource Planning (ERP). Advanced Planner Optimizer (APO) Business Warehouse (BW) Customer Relationship Management (CRM) Supply Chain Management (SCM) Supplier Relationship Management (SRM) Human Resource Management System (HRMS) Product Lifecycle Management (PLM) Exchange Infrastructure (XI) Enterprise Portal (EP) Knowledge Warehouse (KW)
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Technical Environment…
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Technical Prerequisites…
Knowledge of real time JAVA programming. Advanced Business Application Programming (ABAP) SAP R/3 application. Remote Function Call (RFC) Business Application Programming Interface (BAPI) Interface Documents (IDocs)
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Business Server Page…
Layout: Static formatting directives (HTML, XML, WML, etc) Client-side script code Server-side script code: ABAP Java Script User defined routines : Processing input routines Data retrieval Error handling Navigation to next page
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SAP R/3
Client-Server based application. A 3-tier model. ABAP language used. RFCs , BAPIs & IDocs used to interface with SAP.
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3-tier architecture
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Logging on to the screen…
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Screen Elements…
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Standard Screen…
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RFCs… Encapsulates:
Network communication
Data conversion
Code Page Handling Thread safe:
Win 32 since 3.1H
Unix since 4.6D
But no concurrent calls on the same connection. Easy to use in ABAP. Main interface technology between SAP and other SAP or non-SAP
components.
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BAPI… Official, supported ,upward-compatible interfaces to the R/3 system. Access to SAP data and functionality. Support for read, create ,delete, update. Object Oriented Currently implemented as RFC-enabled function modules. Based on development standards. can be used in diverse developing environments. Reduced development and maintenance costs. Can be used in diverse platforms. Rich functionality of R/3 system. User specific front-ends.
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IDocs… Container for data of business object or technical R/3 objects. Has a message type. Contains data in data hierarchy. Characteristics: Database table Text HTML file XML Datastream RFC parameter Concepts: Asynchronous
Related to one document i.e. transaction.
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Business to Business procurement includes transaction via internet, extranet
Backend is R/3 system. Keeps the update of all important business activities.
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