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Case tools Case tools Presentation Transcript

  • CaSe To0ls InSySteMDeVeLoPmEnTVivek KathayatMbadu Yashica
  • COMPUTER AIDED SYSTEMSENGINEERING(CASE)CASE is a term coveringa whole range of toolsand methods thatSUPPORT SOFTWARESYSTEM DEVELOPMENT.
  • WHAT IS CASE TOOLS?CASE tools are programs(software) thatautomate or support oneor more phases of asystems development lifecycle.
  • WHY CASE IS USED? Increasing costs of software developmentdue to the extreme intensive laborrequired. Avoid simple human errors in softwaredevelopment. CASE offers an important opportunity toalleviate the problems of applicationdevelopment and maintenance.
  • TYPES OF CASE TOOLS Upper-CASE:- describes tools thatautomate or support the ‘upper’ orearliest phases of systems development Lower-CASE:- describes tools thatautomate or support the ‘lower’ or laterphases of systems development I-CASE (integrative case):- support theentire SDLC
  • CASE TOOL and METHODCATEGORIESData ModellingRefactoring toolsSource code generationUnified Modelling LanguageDocumentation
  • Data ModelingWhat is Data Modeling?A method that defines datarequirements as data modelsrepresenting the business processes ofthe system.
  • Refactoring What Is It?The process of modifying a systemsinternal structure without changing itsexternal behavior and functionalityCan be thought of as a special typeof Program Transformation Example -RENAMING A CLASS!
  • Source code generation What is It……..Oh wait, That’s easy! Simple DescriptionSource Code Generation is thegeneration of code. Better DescriptionMethod for generating code based on anontological model of the source languagecontaining language concepts and theirrelationships
  • Source code generation How it improves Software Quality Human Error does not mix well with coding Developer benefited by automaticsuggestions ofvariables, classes, components, etcmeaning less risk of errors Generated code can be almost alwaysguaranteed as correctly written
  • Unified Modeling Language What is It? Standardized general-purpose visualizingmodeling language Combine multiple methods of modeling anddiagrams to form a comprehensive whole What is it used for? Used to construct and document objectsand object-oriented systems Equivalent to a blueprint for a building butwith the blueprint representing software
  • Documentation What is It? Documentation tools allow thecreation, modification, and updating ofsystem documentation Compared to other CASE tools these areconsiderably more basic, however thisshouldn’t be taken as useless! Documentation tools can be used to – Generate standard forms Auto correct spelling mistakes Improve layout Generate documentation automatically
  • Documentation Why it benefits Software Quality? Documentation details the system and itsdevelopment, if there’s a problem gooddocumentation is invaluable for findingrecent modifications or solving the error Use of tools results in a more polisheddocument, one that is a higher-quality It can create documentation from code(such as Class Definitions) that accuratelydepicts the codes functions with a depth ofdetail a human developer couldn’t achievewithout more time
  • CASE tool supportRequirements storageRequirements should be managed in asecure, managed data store.Change managementThe process of change management is aworkflow process whose stages can be definedand information flow between these stagespartially automated.Traceability managementAutomated retrieval of the links betweenrequirements.
  • CASE ToolRepositoryHeart of CASE tool is thecentral repository.Stores all the informationtoanalyze, create, designand modify anapplication fromfeasibility toimplementation andmaintenance.
  • CASE Repository FunctionsData-data integrationdatabase management system allowingaccess to related objects so functions canbe achieved.Methodology enforcementE-R model used to define steps needed tobe conducted to build the repository contents.Document standardizationdefinition of objects in the database leadsdirectly to a standard approach for creation ofengineering documents.
  • CASE Repository FunctionsData integrityIncludes functions to validate entries to therepository and ensure consistency among relatedobjectsInformation sharingprovides mechanism for sharing informationamong multiple developers and multipletools, controls modification of informationData-tool integrationestablishes shared data model and performsconfiguration management functions
  • CASE Tool Components
  • The Good and Bad Newsabout CASE Development processproductivity and qualityincreases are realizable Portability of new systemsto other platforms isgreatly enhanced Analyst skill set willimprove due to greaterunderstanding of theprocess Time to delivery of newapplications will decrease Conformity todevelopment standardswill increase CASE acquisition costsare extremely high Training of analysts andadministrators is costlyand time-consuming Most organizations do nothave clear standards forapplication development CASE tools can beviewed as a threat to jobsecurity CASE tools do not have agreat reputation due toearly benefits not beingrealized
  • CASE Summary Overall use of CASE tools on a software systemimproves software quality dramatically by – Reducing errors Improving designs throughout the development Standardizing many tasks and developmentaspects Providing many many well-tested automatedfunctions Centralizing resources CASE is so good for software development itsextremely rare to find a program that doesn’tinclude some form of it within the last 2 decades
  • QUIZ What is the full form of CASE ?a. Computer Aided System Engineeringb. Computer Aided Shooting Engineerc. Computer Aided System Development
  • Quiz What is the full form of UML .a. Universal Modelling Language .b. Unified Modelling Language .c. Universal Modified Language .
  • THANK YOU !!!!!