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Modeling with „Oslo“ Microsoft‘s Modeling Framework. Shy Cohen Independent Consultant . Agenda. The Evolution of Software Modeling Oslo Overview Components Demos, demos, demos Summary. Trending Towards Data. Logic. Data. In. Functionality. Generic Functionality.

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Modeling with „Oslo“ Microsoft‘s Modeling Framework

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modeling with oslo microsoft s modeling framework

Modeling with „Oslo“ Microsoft‘s Modeling Framework

Shy Cohen

Independent Consultant

  • The Evolution of Software Modeling
  • Oslo
    • Overview
    • Components
    • Demos, demos, demos
  • Summary
trending towards data
Trending Towards Data





Generic Functionality

Specific Functionality



Data The App IS Aware Of

Data The App Is NOT Aware Of





“Executable” Data

Code Generation

Executable Code

evolution of exec data
Evolution of Exec. Data





Interpreted Models

Rapid development, automated testing, agility, resource saving, …

Our model definition

Our tool

Our Data

Our own RT

Platform independence, memory mgmt, security, …

Text (C# code)




Text (C code)




Enables the hardware to do many things


A dedicated solution

  • “Oslo” is a set of forthcoming products & technologies
    • A family of languages (collectively called “M”)
    • A SQL-based data store (Repository)
    • Visual data manipulation tool (“Quadrant”)
    • Domain Specific experiences
  • These will be released over time
    • The Repository and “M” are in the front
    • “Quadrant” seems to be following behind
    • Release of V1 is targeted for 2009
      • Alongside Visual Studio 2010
model driven apps w oslo
Model-Driven Apps w/ Oslo



Runtime X



My Model


My Model

My Model

My Model

My Model








ISV Model #N


Enterprise Model #2

Base Model #2

Enterprise Model #1

Base Model #N

Base Model #1

ISV Model #2

  • Other ISV Runtimes

Enterprise Model #N

ISV Model #1

[Your Runtime]



SDK Class Libraries

Data Access Technology

the repository
The Repository
  • Central storage for models
    • Pre-populated with hundreds of domains
    • ISVs, the Enterprise, and You can add more or extend the existing ones
  • Models can be creates, & accessed using anySQL-compatible data access technology
    • From any platform
  • Benefits from all of SQL Server 2008’s abilities
  • Adds Security, Versioning, Lifetime Services,and Localization Support
    • By following specific patterns very strictly
  • A new visual editor for viewing and editing data
    • Highly customizable
  • In V1, targeting devs
  • Currently unavailable to the public other than on the PDC VPC
  • A new family of text-based data modeling languages
  • Designed to describe data, regardless of where it’s stored or how it’s accessed
    • The “Oslo” Repository
    • Any SQL database
    • Interpreted models
  • M lets us
    • Defines data types
    • Describes data instances
    • Describes DSLs that transform “plain text” todata instances
demo data with m

Demo: Data With M

Defining Data Structures and Content

What We saw:

Defining Types

Defining Extents (containers)

Constraints & computed values

Projection to T-SQL, Repository SQL, and Abstract Syntax Trees

demo creating a dls with m

Demo: Creating a DLS with M

Defining and using a Domain Specific Language

What We saw:

Defining a DSL

Writing “code” using the DSL

Translation to data

demo interpreting a dls with m

Demo: Interpreting a DLS with M

Using a Domain Specific Language without going through a database

What We saw:

Accessing the AST directly via APIs

  • Oslo is Microsoft’s new modeling platform
  • The Repository is the heart of “Oslo”
    • A set of services over SQL Server 2008
    • Hundreds of pre-defined models
  • “Quadrant” will provide the visual modeling experience
  • “M” lets you textually manipulate data
    • Rich language and tools for data and instance definition
    • Rich language and tools to define DSLs
    • Ability to consume parsed DSL output using data access APIs
what s next
What’s Next?
  • Download the SDK, understand the Repository, and start learning M
  • Create DSLs for your application domains
    • E.g. replace script and XML configuration files with something more readable
  • Let Microsoft know what you like and what you don’t like – they do listen!
additional resources
Additional Resources
    • Download links
    • Tutorials, videos and webcasts
    • A lot of other content
  • My email:
about the presenter
About the Presenter

Shy Cohen is an independent Software Architect, Consultant, Speaker, Coach & Entrepreneur. His primary focus areas are cloud and distributed computing, and software architecture.

Drawing on over 2 decades of wide-ranging experience in the software industry, Shy feels equally “at home” speaking on stage in to an audience of hundreds, discussing high-level value propositions and business strategies with executives and decision makers, whiteboarding system architecture and designs with architects and team leads, or writing code with developers.

Previously, Shy worked at Microsoft as a Senior Program Manager on projects such as "Oslo", Windows Communication Foundation, MSN, Windows, ISA, and others. Prior to working at Microsoft, Shy worked at Intel and ran a small software company.

Shy has a passion for teaching others. He taught as a college professor, is a published author, and an internationally acclaimed presenter. Shy is also an entrepreneur who thrives on finding how technology can help spark or support business ideas. Shy holds a B.Sc. in Computer Science and a Computer Engineering degree from the Technion.

To learn more, visit