UML Development - Overview

PROGRAM

ACTORS

ANALYSISDomain Objects

DESIGN

IMPLEMENTATION

DATA

DICTION

ARY

TimeUSE CASES

ANALYSISCLASS DIAGRAM(S)

IMPLEMENTATIONCLASS DIAGRAM

SEQUENCEDIAGRAMS

OPERATION CONTRACTS

CLASS STATEDIAGRAMs

DEPLOYMENT DIAGRAMSUBSYSTEM/COMPONENT

DIAGRAMS

SystemDesign

ObjectDesign

SCENARIOS

REQUIREMENTSELICITATION

DESIGN CLASS DIAG.

IMPLEMENTATIONCHOICES

DESIGN COLLABORATION DIAG.

Information Available at Architectural Design

• Use cases, Use case Diagram• Analysis and Arc. Design class diagrams• Analysis and Arc. Design Sequence/Collaboration

diagrams• Statecharts for multi-modal classes• Subsystems + their public interface (API)• Subsystem dependencies• Mapping subsystems’ instances to Hardware

(Deployment)• Data management, Security control

MyTrip Analysis Class Diagram

Location

Segment

Crossing

Direction

Destination

TripRouteAssistant PlanningService

MyTrip Subsystems

Location

Segment

Crossing

Direction

Destination

RoutingSubsystem PlanningSubsystem

TripRouteAssistant PlanningService

Subsystem Interface

• The set of public operations forms the subsystem interface or Application Programming Interface (API)

• Includes operations but also their parameters, types, and return values

• Operation contracts are also defined (pre- and post-conditions) and accounted for by client subsystems – they can be considered part of the API

6

Components vs Subsystems

• A Component are used to implement a package of classes defined in a subsystem

• A component defines a module in the architectural design

• Component types defined by component stereotypes include a Main program component, and Tasks

• Task components represent packages or subsystems with independent threads of control

7

Components and Component stereotypes

NewMainSubprog

NewTaskSpec

NewComponent

NewTaskBody

MyTrip Deployment Diagram

:RoutingSubsystem :PlanningSubsystem

:OnBoardComputer :WebServer

Components must be associated with a processor4 node in the deployment diagram

New Classes and Subsystems

TripLocation

PlanningService

SegmentCrossing

RouteAssistant

Direction

Destination

TripProxy

SegmentProxy

PlanningSubsystem

Message

Connection

CommunicationSubsystem

RoutingSubsystem

MyTrip Data Storage

PlanningSubsystem

MapDBStoreSubsystemTripFileStoreSubsystem

RoutingSubsystem

CommunicationSubsystem

Static versus Dynamic Architecture Information

• Subsystem Interfaces and dependencies provide static information

• Interaction models provide dynamic information

• Concurrency information can be specified on objection collaboration diagrams, sequence diagrams, and component diagrams

12

Concurrency Adornment

• The concurrency of a class is a statement about its semantics in the presence of multiple threads of control. You can set the concurrency of a class to type Active

• The class will has its own thread of control. The method can be executing concurrently with other methods.

• You can display the concurrency for the class in the class diagram by selecting Show Concurrency from the class shortcut menu.

13

Concurrency in Sequence Diagrams

updateStatus( )

Object1:C1 Object2:C2

calcRoute( )

route

Object1:C1 Object2:C2

Implicit Returns Explicit Return

Object3:C3

generateMessage( )

Synchronous method invocation for sequential execution

14

Concurrency in Sequence Diagrams

asynchronous_Call ()

callBack ()

Object1:C1{active}

Object2:C2{active}

15

Concurrency in Sequence Diagrams

• Asynchronous method calls should be explicitly identified with the UML standard notation of a solid line with a half arrowhead.

• Asynchronous messages do not yield the current thread of control.

• Therefore, from the initiating object's viewpoint, there is no implied return message or waiting

16

Proposed Component-based IETM Display System Architecture

Data Access

IETM Electronic Display System (EDS)

IETM Data User Interface

Business Services User ServicesData Services

IETM Object Model

MIL-PRF-87269A Alternative

COTS Components

Web Technologies

IETM ObjectModel Interfaces

17

User Interface

Web Server

IETM Navigation Handler

Receive-Request

Receive-Response

User Interface Engine

Send-Request

Send-Response

Web page + Style info if not processed on server (Requires IE5)

GUI Manager

Render-Info

Might require a Media Server Media Viewer

ScriptsAppletJbeans

ActiveXForms

Plugins or Helper Applications

Browser

HTTP, IIOP, DCOM

18

IETM EDS

IETM Display Engine

IETM Object Model

Search

IETM ObjectModel Interfaces

Get-Result-Objects

Start

IETM Interpreter

Get-IETM-Objects

Receive-Request

Send-Response

Web Server

Receive-Response

Optional: Use it to allow rendering on all browsers not just IE5

XML/HTML Transformer(XSL Processor)

CGIServlet

EJBCORBA Beans

VB, Java, ECMA ScriptsASP, JSP

Session State

Session Manager

Session Cache

RemoveGet AddUpdate

19

Data AccessDatabase-driven System

Data Loader

IETM Content

Get-Info

Style Info

Database Object Interface

Get-Result-Objects

IETM Interpreter

Vendor Driver + ODBC or JDBC Driver

Database to DOMRelational to Object Mapping

SQLOQLSQLJXML/HTML

Transformer(XSL Processor)

Database on O/DBMS ServerXML on O/DBMS Server

O/DBMS + ORB CORBA/IIOPCORBA Server

20

Architectural Forms in UML IETM Object Model

NODE-ALTS

Nodes : NODE

Eval_Alts()

<<Stereotype>>

NODE

name : CDATAtype : CDATAitemid : CDATApreconditions [0..*] : precondpostconditions [0..*] : postcondContents : InformationContent-Formsprimitives [0..*] : %primitivelinks [0..*] : %link

Display()Set_Post_Conditions()Eval_Pre_Conditions()hasContents()

<<Stereotype>>

1 1..*1 1..*

InformationContent-Forms

1

0..*

1

0..*LOOP-NODE

IndexDeclare [0..1] : assertionExitCond : expressionIndexAlter [0..1] : assertionRepeatSeq : NODE-SEQ

Start()Eval_Condition()Update_Index()Terminate()

<<Stereotype>>

Architectural-Forms

id : IDcdm : NAMEref : IDREF

IF-NODE

Condition : expressionThenSeq : NODE-SEQElseSeq [0..1] : NODE-SEQ

selectFlow()getThenSeq()

<<Stereotype>>

NODE-SEQ

SeqElements : Architectural-Forms

getNextElement()

<<Stereotype>>

1

1

1

1

1

1..*

1

1..*

stepBack()hasMoreElements()Reset()

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The IETM Object Model Interfaces

IETM Object Model

IETM ElementIETM Collection IETM Document

GenericLayerElements

OrganizationalLevel LayerElements

LinkContextFiltering UserInterface OtherArchitecturalForm

Primitive

Sub-primitive ProceduralInfo

DescriptionInfo

FaultInfo

PartsInfo

MainInfo