oslo, microsoft’s vision for the future of modelling (extra content) robert hogg architect black...

Oslo, Microsoft’s vision for the future of Modelling

(Extra Content)

Robert HoggArchitect

Black Marble

FBCS, CEngSenior ArchitectBlack Marble LTD

Robert Hogg

• The “Oslo” Back Story• A Lap around “Oslo”• The Repository• M• IntelliPad• Quadrant• Demos @ the 3.00pm interactive session

Agenda

Images © Copyright VisitOSLO/Matjaz Intihar

The “Oslo” Back Story

• A Model is used to describe an abstract entity• We are not discussing Object Modelling• Think relational Modelling

Modelling

3 DUBS ( A QUICK SPIN )

3 Dubs

• WCF 4.0• WF 4.0• “Dublin” Application Server

Version Integration

.net 3.0 WCF | WF

.net 3.5 WCF + WF

.net 4.0 WCF/WF

WCF 4.0

• Services can be declared using XAML– You can create a service with zero lines of code

• Much tighter integration with WF• Tighter integration with Dublin

WF 4.0

• Core WF class library has been re-written• Flowchart workflow model• 10x – 100x performance increased• XAML has been greatly improved

– XAML is now default authoring mode• Designers have been re-written to use WPF

– 10x easier to add activity designers– You may love it, you may hate it

• Designer re-hosting is 10x easier

Windows Application Server Extensions(Codename “Dublin”)

• Evolution of WAS/IIS and Windows App Server role to run and manage WF and WCF services

• Initial release is a web download

• Ships soon after VS10Windows Server

.NET Framework

“Dublin”

Visual Studio Oslo

WF and WCF services

Administration Tools

System Center

IIS/WAS

IIS/WAS

DublinQuadrant IIS Manager

WF and WCF Frameworks

Persistence

SQL Persistence

Provider

Management APIs (PowerShell command-lets)

WF and WCF Management Modules

Runtime DatabasesPersistence schema Monitoring schema

Monitoring

WF SQL Tracking Provider

WCF SQL Tracking

Behaviors

Messaging

Forwarding Service

Hosting

Durable Timer

Service

Visual Studio

WF and WCF Project Templates

Windows Application Server Role

Model Deployment to Dublin

Discovery Service

Dublin addsDublin enhances

Windows/IIS/.NET 4.0

Scale-out & ReliabilityDiscovery & Control Application Monitoring

Versioning, Partitioning, Routing

Syst

em C

ente

rAp

p Se

rver

SCO

M P

ack

“It just works!”

Dublin vs. BizTalkBizTalk Dublin

$34,999 per proc ($8,499 Std Edn) Free

Hosts message channels and orchestrations

Hosts services and workflows

Uses message box for highly reliable messaging

WS-RM can be used, messages not persisted

Fully supported for large scale deployments

Scaled in the same way as IIS

Comprehensive management and diagnostics tools

Basic management and diagnostics tools

Latency can be an issue as messages are persisted

Low latency achieved easily

A LAP AROUND “OSLO”

What is a Model?A DESCRIPTION OF A GIVEN DOMAIN

MODEL-ASSISTEDModels used to understand or manipulate code Examples: Static Structure, Sequence, …

DRAWINGSModels used to communicate with othersExamples: Dataflow, Use Case, …

MODEL-DRIVENModels executed by runtimes directlyExamples: HTML, CSS, XAML, BPEL, …

Model-driven Platform

COM (+)midl.exe

[Transaction]

DECLARATIVE CONTENT

TIME

.NET 1.0[YourAttributeHere]

app.config

Web Serviceswsdl:definitions

xsd:schema

.NET 3.0wf:StateMachine

wpf:ContentControl

Model-driven Applications

Textual domain specific language (CAML) Visual designer (SharePoint Designer) Application definition stored in database

Textual domain specific language (X++) Visual designer (MorphX) Application definition stored in database

Why is this happening?

TRANSPARENCYBetter understanding of your application

FLEXIBLITYFaster changes to your application

PRODUCTIVITY“More essence, less ceremony”

• Business Analysts – Define business process ( Word, Visio )

• Architects– Define systems (Word, Visual Studio )

• Developers– Develop systems (Visual Studio)

• IT– Manage systems (System Centre)

The Application Lifecycle

Application Development

BA

ArchitectDev

IT

Business ProcessReqs

Service Level Agreement

Application

What is "Oslo"?THE PLATFORM FOR MODEL-DRIVEN APPLICATIONS

RepositoryModel store

“Quadrant”Modelling tool

“M”Modelling language

Key "Oslo" Concepts

MODELS

TEXTUAL DSLsVISUAL DSLs

RUNTIMES

“QUADRANT”

Composition

Generic Viewers

Dataflow

EDITORFRAMEWORK

[Your Visual DSL]

[Your Textual DSL]

MSchema

MGrammar

MGraph

LANGUAGEFRAMEWORK

[Your Models]

Base Models

“M” Runtime

REPOSITORYSQL SERVER

[Your Models]

Base Models

“M” Runtime

REPOSITORYSQL SERVER

"Oslo" Architecture

RUNTIMES

[Your Runtime]

“Dublin”

ASP.NET

WF

WCF

SQL/EDM

WindowsOther ISV Runtimes

ADO .NET

XML, Custom Formats, …[Your Models]

.Net Models

Repository Models

REPOSITORYSQL SERVER

OTHER TOOLS

(VSTS, EXCEL, …)

XML, Custom Formats, …

THE REPOSITORY

• A single location for definitions • A single location for information• Relationships defined across traditional

boundaries• End to End tracking

Repository

Schema Instance

Schema Instance

Instance

Repository Capabilities

• Repository features are built on SQL Server– Repository install also turns on useful

features, e.g. replication and mirroring

system catalog, Change Data Capture,replication, SSIS, mirroring, security, etc.

SQL ServerFeatures

Repository catalog, secure views, auditing,versioning, claims-based security, glob/loc, etc.

RepositoryFeatures

• Database structure is used to define models• E.g. WCF artefacts are represented as tables in

the repository database– Service contracts– Operation contracts– Endpoints– Bindings

Structural Models

Repository Database Content

• Tables in the Repository database represent different technologies

• Currently included:– Common language runtime– Windows Communication

Foundation– Windows Workflow Foundation– Identity

System.ServiceModel partial structure

Instance Models

• Data is used to define models

• Rows are inserted in structural model tables

• A service application can be modelled by– Adding a service

contract– Adding service

operations– Adding endpoints and

bindings

• The repository MAY at some point in the future be federated across other data stores such as– Team Foundation Server (TFS) in Visual

Studio Team System– Various stores in System Center– And more

• Imagine the possibilities

Federating Systems

• Repository is optimized for many reads, few writes

• Contains models for “Oslo” app domains• Can be extended with M• Models can be deployed, secured

and versioned

Repository

THE MODELLING LANGUAGE

• Interacting with Oslo content needs to be simple and natural

• Textural based modelling language

Why “DM”?

• “M” is a language for defining domain models and textual domain-specific languages (DSLs)

• M domain models define schema and query over structured data– Values, Constraints, and Views– Natural projection to SQL

• M DSLs define projections from Unicode text to structured data– Rule-based transformation– Grammar-driven text editor integration

What Is “M”?

The "M" LanguageDSL

"M"

Domain-specific grammars

Abstract data model

Domain-specific data models

language PointLanguage { syntax Main = h:Integer "," v:Integer => Point { X { h }, Y { v }};}

type Point { X : Integer; Y : Integer;}

Point { X { 100 }, Y { 200 } }

Point.mDomain Model

DSLY

DomainY.mgDomain Grammar

DSLXDomainX.mDomain Model

DomainY.mDomain Model

DomainX.mgDomain Grammar

PointLanguage.mgDomain Grammar

MSchema

MGrammar

MGraph

“M” Language Example// Module: Used to scope model definitionsmodule Test.TimeReport{ // Type: Defines employee data structure type Employee { Id : Integer32 FirstName : Text where value.Count <= 100; LastName : Text where value.Count <= 100; } // Extent: Contains zero or more employees Employees : Employee*;}

MSchema is used to model data structures, storage, views and constraints

• Once they’re in the database, it’s just SQL• “TSQL can be used to create repository structure or

standard database structure– Repository TSQL is more complex

Using “M” to Model a Database// Module: Used to scope model definitionsmodule Test.TimeReport{ // Type: Defines employee data structure type Employee { FirstName : Text where value.Count <= 100; LastName : Text where value.Count <= 100; }

// Extent: Contains zero or more employees Employees : Employee*;}

create table[Test.TimeReport].[Employees]( [FirstName] nvarchar(100)

not null, [LastName] nvarchar(100)

not null,);go

Compile

M Tool Chain

M.exeDomain Model

Compiler

MX.exeDomain Model

Loader

ModelA.mModelB.m

ModelC.m ModelABC.mx

SQLServer

M Framework M Framework

• An object-oriented language– No polymorphism, virtual dispatch– “Is-a” determined based on structural subtyping, not

stipulation• A data access technology

– M domain models compile down to T-SQL– Tool chain supports course-grained loading/unloading of

schemas and values – not an OLTP solution• A replacement for T-SQL

– Far less expansive feature set– Tool chain supports linking/invoking T-SQL

What “M” Is Not

INTELLIPAD

• Simple text based code editor• Supports “M” languages• Provides instant feedback of code compilation

– Great for learning “M” languages• Visual Studio can also be used for “M”

– Most likely scenario in real projects

IntelliPad Editing Tool

M: Visual Studio

QUADRANT

• Graphical tool used for managing instance models– Targeted at architects and business analysts

• Uses “Office Style” ribbon toolbar• Loads model definitions from repository

database– Allows management of instances– Changes are saved to database immediately

What is "Quadrant"?

Quadrant Modelling Tool

REPOSITORY

SHELL AND SURFACESERVICES COMPOSITIONENGINE

NestingSizingLayoutSnapping

"Quadrant" Architecture

Core Services

Undo/RedoCommandsDrag/DropSelectionActivationError HandlingGeneral ServicesSearchValidationAnnotationsRelationship Highlighting

DATAFLOW ENGINE

Caching,Virtualization,Change tracking, andNotification

Target Data

View StateConfiguration

Development Domains

TEXTUAL DSLsVISUAL DSLs RUNTIMES

“Quadrant” Web Editor

“MWeb” ASP.NET

“Quadrant” Service Editor

“MService”WCF/WF

(“Dublin”)

“Quadrant” Entity Editor

“MEntity” EF

“Quadrant” Schema Editor

“MSchema” SQL

“Quadrant” My Configured

EditorMy DSL My Runtime

WEB

SERVICES

ENTITIES

DATABASE

CUSTOM

• Design– “M” is used to define the application database structure– The “M” model is imported to Repository database– The application is modelled in Quadrant

• Implementation– The “M” model is used to create the runtime database– Visual Studio is used to develop runtime components

• Deployment– Quadrant could be used to deploy the application

• RunTime– “Dublin” could be used to deploy the application

Oslo Scenario: Modelling an application

What is in it for the Enterprise?Tooling

Sharing a common Repository

Modelling layer

Service Model

Visual and Textual DSL Delivery and Hosting

SUMMARY

• Repository Database– Built on SQL Server 2008– Stores model definitions (structure)– Stores model instances (data)

• “M” language– Declarative text-based Modelling language– Aimed at “curly-brace” programmers– Can be used to define models for repository database– ““M” is to TSQL what C is to assembly” – Don Box

• “Quadrant” Modelling tool (only available on pdc pod)– Graphical tool used to edit model instances– Targeted at “Business Analysts” and architects

• Runtimes built by reading data from the Repository

Summary Oslo – January 2009

What Next?Get Ready for "Oslo“Codename “Oslo” Developer Centre

msdn.microsoft.com/osloSDK DownloadSDK Contains

Repository database“M” Modelling language (MSchema, MGrammer)IntelliPad editorDoes not include “Quadrant”

Documentation and resources

The “Oslo” Modelling LanguageLangworthy, Lovering, Box – Addison-Wesley

Learning MSchema will take a C# developer about a day

Get Ready for “Oslo”Bits

Try to get the “PDC08-CSD” virtual imageCommunity

BoggersGuides.netblogs.blackmarble.co.uk/blogs/boss/default.aspx

Forums“Oslo” forum“Dublin” forum

Use “Oslo” todayUse “M” to model a database!

MGrammar Language for creating textual DSLsSpecification will be released under OSP