Praveen Srivatsa
Director, AsthraSoft Consulting
Microsoft Regional Director, Bangalore
Session Code:

Agenda
RIA Applications Today
Building Data Driven Applications
Silverlight 3.0 RIA Services

Objective
In this session, we will talk about how tough it is
to build data driven RIA Applications using
today’s technologies.
We will then see how the Silverlight 3.0 RIA
Services addresses these problems by creating a
comprehensive architecture pattern for
developing Rich Interactive Applications.

RIA Applications today
The pains and the travails of developing RIA Apps
ASP.NET and Ajax development is very time consuming
Silverlight development is not better
Key focus : Developer productivity
ASP.NET MVC introduces an easier model for developing data
driven applications
Taking ASP.NET MVC forward

Vision and Goals
Simplify RIA development
n-tier is hard, and un-natural
Bring ASP.NET/RAD-style productivity
to RIA development
Focus on end-to-end scenarios and solutions

Value Propositions
Focus on data in an end-to-end manner
A unified story for client and server
development
A prescriptive framework that targets key
scenarios, and leads the common developer to
a pit of success

End-to-End Data
Beyond accessing and editing rows
App-specific custom operations
Data shaping (sorting, paging, and filtering)
Rules (validation, authorization, and conflict
handing)
Batching and offline

App Model that Spans Tiers
A single logical application
Client is an extension of the server
Browser Rich Internet Application Application
Web
Services
Presentation App Data Access
HTML Network
Logic Logic Layer
DB
Services
Services Other Applications

A Prescriptive Pattern
DomainContext: Bindable Data DomainService: CRUD + App Logic
class Catalog class Catalog
EntityList<Product> Products { get } IQueryable<Product>GetProducts()
Data Model +
void LoadProducts(IQueryable<Product>) void UpdateProduct(Product, Product)
Metadata +
void ToggleSale(Product) void ToggleSale(Product)
Shared Code
Validation and authorization rules,
class Product Application workflows, …
Data members + Validation
void ToggleSale() Data Model
class Product
Application Services
Presentation Network App Data Access
Logic Logic Layer
DB

A Pattern that Scales and Grows
Support for multiple presentation tiers
and data access technologies
.NET Clients Databases
Silverlight, WPF ADO.NET,
ORMs (LTS, EF, …)
Standards Clients
JavaScript
CLR Lists/Objects
App
Server Rendering Repository
Logic
HTML, SEO, (nHibernate, …)
Printing, …
XML,JSO Services
Services N, REST/SOAP
WCF Binary (Azure, …)
Unit Test
Code

Roadmap
First public CTP at MIX
Works with Silverlight 3 and .NET 3.5 SP1
On-going CTPs through RTM
Please provide feedback!
Go-live later in the year
RTM soon after
Full support for ASP.NET, Ajax,
and WPF applications also forthcoming

Summary
Focus on data in an end-to-end manner
A unified story for client and server
development
A prescriptive framework that targets key
scenarios, and leads the common developer to
a pit of success

Email : praveens@asthra.net
Blog : http://blogs.asthrasoft.com/asthratimes

Track Resources
Silverlight Community Site (http://www.silverlight.net)
Blogs – Nikhil Kothari (http://www.nikhilk.net)
Blogs – ScottGu (http://weblogs.asp.net/scottgu/)

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