Nwdi Overview And Features
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This presentation is intended to give overview of NWDI and its features

This presentation is intended to give overview of NWDI and its features

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  • Core message: Microsoft and SAP have had a partnership for more than 11 years Comments from MS and SAP Presidents: “ More than any other company we work with, SAP has strong influence on our product development, and we see that growing in the future “ Bill Gates, Chairman and Chief Software Architect , Microsoft „ This relationship consists to 95% of partnership and 5% of competition.“ Henning Kagermann, CEO SAP AG (CeBIT, Germany 2003) Microsoft has been using SAP as its core ERP system since 1995 (one single global instance for more than 57’000 employees) – MS runs SAP on Windows Server 2003 and SQL Server 2005 Core message: Microsoft and SAP have had a partnership for more than 11 years Comments from MS and SAP Presidents: “ More than any other company we work with, SAP has strong influence on our product development, and we see that growing in the future “ Bill Gates, Chairman and Chief Software Architect , Microsoft „ This relationship consists to 95% of partnership and 5% of competition.“ Henning Kagermann, CEO SAP AG (CeBIT, Germany 2003) Microsoft has been using SAP as its core ERP system since 1995 (one single global instance for more than 57’000 employees) – MS runs SAP on Windows Server 2003 and SQL Server 2005 Core message: Microsoft and SAP have had a partnership for more than 11 years Comments from MS and SAP Presidents: “ More than any other company we work with, SAP has strong influence on our product development, and we see that growing in the future “ Bill Gates, Chairman and Chief Software Architect , Microsoft „ This relationship consists to 95% of partnership and 5% of competition.“ Henning Kagermann, CEO SAP AG (CeBIT, Germany 2003) Microsoft has been using SAP as its core ERP system since 1995 (one single global instance for more than 57’000 employees) – MS runs SAP on Windows Server 2003 and SQL Server 2005 Core message: Microsoft and SAP have had a partnership for more than 11 years Comments from MS and SAP Presidents: “ More than any other company we work with, SAP has strong influence on our product development, and we see that growing in the future “ Bill Gates, Chairman and Chief Software Architect , Microsoft „ This relationship consists to 95% of partnership and 5% of competition.“ Henning Kagermann, CEO SAP AG (CeBIT, Germany 2003) Microsoft has been using SAP as its core ERP system since 1995 (one single global instance for more than 57’000 employees) – MS runs SAP on Windows Server 2003 and SQL Server 2005
  • Microsoft have been working together since 1993 to make sure SQL and Windows work with SAP

Nwdi Overview And Features Nwdi Overview And Features Presentation Transcript

  • NW 7.0 NWDI – Netweaver Development Infrastructure Anandha Krishnan R SAP NetWeaver Technology Consultant Kaar Technologies
  • Netweaver Development Infrastructure Motivation Design Time Repository Component Build Service Change Management Service
  • Netweaver Development Infrastructure Motivation Design Time Repository Component Build Service Change Management Service View slide
  • Delivery Process – Shipment to Customer
    • Challenge for Application Software Vendors – Customer Needs to change the Standard Software
      • Need Complete build environment
      • Need the delivery format including all type of executables and sources
      • Need Concepts for handling of modifications
    • With NWDI
      • NWDI Package format enables the shipment of various software types (e.g. jars, java sources and dictionary)
      • Build Services option allows recompilation of modified sources
      • Source Code control system based on distributed versioning
        • Enables controlled source delivery between different locations
        • Allows conflict resolution between customer modifications and new SAP deliveries
    View slide
  • Development Cycle in Web AS ABAP
    • Dev -> Qas -> Prod
    • Common Transport Directory or Local Transport Directory
    • The Objects will be available in the form of data file and control file.
  • Development with NWDI
  • Development Infrastructure – Learning from ABAP
  • Netweaver Development Infrastructure
    • Is standards based
      • J2ee
      • WebDav, DeltaV
        • Repository standards for accessing and versioning arbitrary development object
        • Supported by all development tool vendors
      • Developer front-end plugged into eclipse (open source Development tool)
    • Offers Substantial savings in business application Development
      • Supports various parts of Business Applications beyond pure code like DB definitions, UI definitions, web services…
        • Supports all SAP Netweaver Authoring Environments (PDK, MDK, IDE,…)
      • Supports strong and well organized reuse between many developers
      • Central administration frees developers from technical details
    • Is Adaptive to customer needs
      • From simple projects to huge projects
      • Support projects with hundreds of developers in multiple layers and mixed with SAP modifications
  • Components of NWDI
  • Design Time Repository Component Build Service Change Management Service Motivation Netweaver Development Infrastructure
  • DTR – Goals and Basics
    • Distributed concurrent development
      • Distributed Versioning that spans repositories
      • Conflict detection
      • Support for conflict resolution
    • Open standard
      • Based on open standard – WebDAV, DeltaV
    • Files and folders
      • DTR has knowledge on files and folders
      • No knowledge on objects of programming model
      • (classes, tables, screens)
    • Check in/check out model
      • Files are checked out from DTR and modified “Offline”
      • After correction the files are checked in again
  • DTR - Architecture
  • DTR - Architecture
    • DTR Client
      • SAP NetWeaver Development Studio – Eclipse based client to perform common tasks with DTR
      • Command line client – Performs Administrative task’s
      • Web browser – Access to DTR contents using web browser or WebDAV enabled client
    • DTR Server
      • Handles file versioning
      • Uses relational database to store files
      • Resources are accessed in context of workspace
      • Versions are managed in context of activities
    • Integration
      • Data transferred between client and server using WebDAV and DeltaV+
  • DTR – Integration Conflict
    • Same file was changed in two workspace concurrently
    • The changes are propagated and meet in workspace
    • Conflict is detected and stored
  • DTR – Conflict resolution
    • Conflict resolution
      • Create new merge version
      • Accept Current Version
      • Accept Integrated Version
    • Merges
      • Are propagated
      • Conflict can be resolved by integration
  • DTR – Distributed Versioning
    • Propagation of changes between repositories
    • Distributed versioning and conflict resolution
      • Changes are recognized as versions of same file
      • Imported versions are correctly placed into version graph
      • No risk of overwriting changes in target repository
    • Allows upgrade of source code modified by customers
  • DTR – User Management
  • Netweaver Development Infrastructure Motivation Design Time Repository Component Build Service Change Management Service
  • Component Based Development
    • CBS
      • Is responsible for building the sources stored in DTR
      • Provides Central Build environment
      • Automated Build Process
      • Build process happens in Incremental fashion
      • Successfully built DC’s are put into DTR and will be ready for release.
      • The source state will be changed to Active
      • Activation concept guarantees consistent build environment
  • CBS Usage
    • CBS is J2EE based database application
    • CBS is accessed with
      • SAP NetWeaver Developer Studio: Activation view and Activation Request view are integrated into Developer Studio
      • The CBS Web User Interface for CBS Administration
      • Command line tools: There is a dedicated command line tool for working with the CBS
  • CBS - Architecture
  • CBS Architecture & Integration with other Services
    • CBS Request Receiver
      • J2EE Application which accepts request from clients
      • Places in request queue and assigns request number
      • Execution later done by CBS J2EE Service
      • User can Query the process status
    • CBS Database
      • Contains the request queue and the archive pool with the built and imported archives
      • Contains data on the buildspaces, the activated development components and the activation state of activities in the DTR.
    • CBS J2EE Service
      • Service of the J2EE Engine, which implements the actual build engine
      • Takes the requests from the request queue and starts a build task for every request to execute the request
      • Can execute Several build task in parallel
      • Several server nodes with individual CBS J2EE services in one J2EE cluster
  • Cont.,
    • Build Directory in File system
      • To start the build for a request, the CBS J2EE service first creates a temporary directory
      • source text from the DTR and the required libraries from the archive pool are copied
      • Also copies the build space-related components of the build environment, the build plug-ins
    • CBS Build Controller
      • Build Controller loads the required build plug-ins and requests them to execute the actual build.
      • Is a Java command line application, which is started as a separate process
    • CBS Web UI
      • a Web Dynpro-based Web interface, which allows users to use the CBS from within a Web browser.
  • The Component Model - Explanation
    • Development Objects
      • Stored as versioned files in the source repository (DTR)
    • Development Components
      • Development and build units
      • Group development objects without overlapping
    • Software Components
      • Delivery and installation units (like e.g. HR in ABAP)
      • Group development components without overlapping
      • Own the release definition
    • Products
      • Overlapping selections of
      • software components
  • CBS Features
    • Encapsulation/Decoupling
      • Reusable elements explicitly declared public
      • Nested components
      • Access control lists restrict component usage
    • Controlling Dependencies
      • Explicit declaration of dependencies
      • Checked by build process
    • Build Support
      • Predefined build templates for component types
    • Generic Model
      • Independent of technology / programming language
    • Tools
      • Fully integrated in SAP NetWeaver Developer Studio
  • Development Components
    • Development Component (DC):
      • Container for development objects and built units
      • DCs are grouped to make software components
    • Nested DCs
      • DCs may be contained in another DC
    • Public parts
      • Elements of a DC that may be used by other DCs (DC-interfacing)
    • Usage dependencies
      • Declare that a DC uses parts of other DCs during build or runtime
  • Components and Development Studio Integration
    • Eclipse project handling
      • Development Components are mapped to eclipse projects
      • DC types are mapped to eclipse project types (natures)
      • Projects automatically created from DC data in the repository
      • Automatic references to used libraries based on DC dependencies
    • Local Component Build
      • Checks rules of component model
      • Same build procedure as on CBS
    • Preconfigured DC types
      • Web Dynpro, Data Dictionary, J2EE, Web Services, Java …
  • Component Model Structure
  • CBS, Build Process
  • Netweaver Development Infrastructure Motivation Design Time Repository Component Build Service Change Management Service
  • NW Development Infrastructure - Big Picture
  • JAVA Development Life Cycle
    • SLD – Definition of software to be developed
      • Define a product
      • Define one or more software components (SCs) that form the product
    • CMS – Definition of development landscape
      • Define a track for the specific release of the SC
      • Development configurations are generated for each development state of an SC (DEV or CONS)
    • Dev Studio – Edit and Build development objects
      • Use the SAP NetWeaver Developer Studio with access to the SAP NW DI for all development projects
      • Release objects for further processing by QM/Admin.
    • CMS – Define further use of SC’s
      • Transport into next dev. steps, quality assurance, and assembly using the Change Management Service
    • CMS – Deliver Software components and patches
      • Deliver software component versions building products as well as support packages
    • CMS – New track for next software release
  • Track definition in CMS
    • A track comprises configurations and runtime systems (systems in CMS) required for developing software component versions.
    • It ensures stable states of deliverables used by subsequent tracks .
  • Local and Central Development Integration
    • environment defined by development configuration
    • based on SAP Component Model
    • NetWeaver Developer Studio as local IDE
    • Central versioning with the Design Time Repository (DTR)
    • Local build and test cycles while developing components in inactive state
    • For activating a development component, central build using the Component Build Service (CBS) is necessary
    • Tests can run on central test system of the development system
  • Summary – Java Development Steps
  • Summary – NWDI Benifits
    • Higher efficiency in development & maintenance
    • Allow Source-Delivery for applications
    • Component concept
      • better means to structure the software
      • control of dependencies
    • CBS & BuildTool
      • no handwritten build scripts
      • consistent and up-to-date libraries for IDE
      • activation check
    • Design Time Repository
      • controlled source delivery & modifications
      • avoidance of multiple maintenance
    • Change Management Service
      • central control of logistics (similar to TMS)
      • immediate deployment into central test runtime
      • early integration
  • Questions? Q&A Source: http://help.sap.com , http://sdn.sap.com
  • Thank You