Uploaded byMiraj Baldha
Software practises
The document discusses an eMenu system created using .NET technologies. It describes issues with the previous system like exposing everything, redundancy of code, and lack of modularization. It then covers technologies used in the new system like MEF for building plug-in architecture, Entity Framework as the ORM, and patterns like singleton, facade, factory and MVVM. The document provides an overview of the new system's architecture and goals of addressing issues in the previous version.
Software practises
- 1. Software Practices -Stay Tuned………
- 2. Agenda Software Life Cycle with cost Overview: eMenu System .NET 4.0 Technologies Patterns Azilen Technologies (P) Ltd
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- 4. Innovation at Fingers EMENUSYSTEM Azilen Technologies (P) Ltd
- 5. Technology Overview .NET 3.5 Framework Business Layer ◦ BindingList(Of T) ◦ LINQ to Objects ◦ Validation Block (Ent Lib 5.0) Data Access Layer ◦ Data Access Application Block(Ent Lib 5.0) Azilen Technologies (P) Ltd
- 6. Contd.. Presentation Layer: ◦ Windows Form ◦ Elegant Controls Azilen Technologies (P) Ltd
- 7. Issues with existingsystem Exposed everything everywhere Redundancy of Code No modularization Azilen Technologies (P) Ltd
- 8. Exposing everything everywhere Business Logic Layer: Manager classes are accessible outside an assembly Solution: Manager class should have an Internal Access modifier Azilen Technologies (P) Ltd
- 9. Redundancy of code ◦ Splash Screen Solution1: User Control Property: Splash Image Solution2: Abstract Class SplashScreen Splash Image Sub StartSplash() Sub CloseSplash() Overridable Sub Initialize() Derived Class: 1) BOSplashScreen 2) KMSplashScreen Azilen Technologies (P) Ltd
- 10. Contd… ◦ BusinessEntity: Have an identity and implements INotifyPropertyChanged events. ◦ Serialization ◦ R/W application settings or configuration file Azilen Technologies (P) Ltd
- 11. .NET 4.0 TECHNOLOGIES Azilen Technologies (P) Ltd
- 12. Technologies Managed Extensibility Framework(MEF) ◦ Helps to build plug-in based system Entity Framework(LINQ to Entities) ◦ Decrease the amount of code and maintenance required for data-oriented applications. Azilen Technologies (P) Ltd
- 13. Parts have freedomto live PLUG-IN BASED APPLICATION Azilen Technologies (P) Ltd
- 14. Designing Plug-in based application Reflection Managed Add In Framework Managed Extensible Framework StructureMap Azilen Technologies (P) Ltd
- 15. Managed Extensible Framework Solution for the runtime extensibility problem. Host application exposes itself and consumes external extensions. Azilen Technologies (P) Ltd
- 16. How it works? Azilen Technologies (P) Ltd
- 17. An ORM toolfrom Microsoft ENTITY FRAMEWORK Azilen Technologies (P) Ltd
- 18. ORM(Object Relational Mapping) Designing and Querying database models at the conceptual level Tool: Simplify the creation of data access layers, automate data access Azilen Technologies (P) Ltd
- 19. ORM with .NET nHibernate Linq To Sql(L2S) Linq To Entities(Entity Framework) Azilen Technologies (P) Ltd
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- 21. Entity Framework Programming against a conceptual application model instead of programming directly against a relational storage schema. Mappings between the conceptual model and the storage-specific schema can change without changing the application code. Azilen Technologies (P) Ltd
- 22. Take a newturn PATTERN ”General reusable solution to a commonly occurring problem in software design” Azilen Technologies (P) Ltd
- 23. We Know butWe Don’t Know Singleton Pattern: Only one instance of class is made and used throughout application. Façade Pattern: A facade is an object that provides a simplified interface to a larger body of code. Azilen Technologies (P) Ltd
- 24. Contd… Factory Pattern: ◦ Creating new instance without invoking constructor. ◦ Have you seen anywhere? Azilen Technologies (P) Ltd
- 25. Patterns used withORMs Repository Pattern: Mediates between the domain and data mapping layers using a collection-like interface for accessing domain objects. Unit Of Work Pattern: Maintains a list of objects affected by a business transaction and coordinates the writing out of changes and the resolution of concurrency problems. Azilen Technologies (P) Ltd
- 26. Model-View-ViewModel (MVVM) Azilen Technologies (P) Ltd
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Editor's Notes
- #19 Object Role Modeling (ORM) is a powerful method for designing and querying database models at the conceptual level, where the application is described in terms easily understood by non-technical users. In practice, ORM data models often capture more business rules, and are easier to validate and evolve than data models in other approaches.