cbse - presentations advanced component-based software engineering assignment 2

CBSE - presentations

Advanced Component-Based Software Advanced Component-Based Software

EngineeringEngineering

Assignment 2Assignment 2

Assigment 2Assigment 2

There will be some changes in the assignment 2

Due to a large number of students – less flexibility to ensure that the students achieve the knowledge required

Running the assignment in a more organized form

Good opportunity to learn about trends in component-based software engineering (practice and research).

Due to an opportunity to participate in a research project

, April 19, 2023CBSE - presentations

Assigment 2 planAssigment 2 plan

Goal

Learn about modeling component-based systems using two different component models

Learn about principles of the two component models

Practical exercise in modeling component-based systems

Following and reporting the own work and reflecting over the work and the results

Make assignment 2 more fun!


Assigment plan – changesAssigment plan – changes

NO long reports!

Instead

Assignment – Reading & questionnaire

Practical work

Short presentation

Individual work (everyone work for himself/herself)

Participating in a research project


Assigment 2 - actionsAssigment 2 - actionsActions

1. STUDY - Get theoretical knowledge about modeling component-based systems using two technologies

Read literature about modeling components and component-based systems using UML Modeling components and component-based systems using SaveCCM

Model an application (the requirements and some specifications will be given) using UML and SaveCCM

2. Questionnaire I/test1. On-line assignments to the questions related to UML and

SaveCCM3. INSTALLATION & TRAINING

1. Installing tools IBM Rational Software Architect Save-IDE Development Environment

2. Model the application in these tools


Assigment 2 – actions (cont.)Assigment 2 – actions (cont.)Actions

4. MODELING - For a given requirements and draft specification model

Design a model using IBM Software Architect or Save-IDE

Measure your activities

Submit the model

5. Questionnaire II

Fill in data about your experience and findings during the work

6. Presentation

Present the result



1. STUDY 5/2 – 17/2

Reading papers + “manual”

2. Questionnaire I 18/2 (Wednesday)

3. INSTALLATION 19/2

& TRAINING

4. MODELING 25/2 – 10/3

5. Questionnaire II 11/3 (Wednesday)

6. Presentation 16/3 (Monday)


1 Week

2 Weeks

3 Days

All G1 G2 G3 All G1 G2 G3

UML Save UML+Save

3 WeeksInstallation+ UML +SaveIDE modelling

1 Week

1 Week

UML - find literature by yourself

UML design

UML component diagrams

UML profiles

SaveCCM

The SAVE Approach to Component-Based Development of Vehicular Systems. M. Åkerholm, J. Carlson, J. Fredriksson, H. Hansson, J. Håkansson, A. Möller, P. Pettersson, and M. Tivoli. Journal of Systems and Software, 80(5):655–667, May 2007. http://www.mrtc.mdh.se/index.php?choice=publications&id=1108

The SaveCCM Language Reference Manual. M. Åkerholm, J. Carlson, J. Håkansson, H. Hansson, M. Nolin, T. Nolte, and P. Pettersson. Technical Report ISSN 1404-3041 ISRN MDH-MRTC-207/2007-1-SE, M¨alardalen University, January 2007.http://www.mrtc.mdh.se/index.php?choice=publications&id=1210



1. STUDY 5/2 – 17/2

2. Questionnaire I 18/2 (Wednesday)

3. INSTALLATION 19/2

& TRAINING

4. MODELING 25/2 – 10/3

5. Questionnaire II 11/3 (Wednesday)

6. Presentation 16/3 (Monday)


1 Week

2 Weeks

3 Days

All G1 G2 G3 All G1 G2 G3

UML Save UML+Save

3 WeeksInstallation+ UML +SaveIDE modelling

1 Week

1 Week

Modelling I Model a system using IBM Rational tool or SaveIDE

System specification and other requirements will be given to you IBM Rational Software Architect tool

UML + SaveUML profile

Modelling II Model a system using IBM Rational tool or SaveIDE

System specification and other details will be given to you SaveIDE

SaveComp Component Model (SaveCCM)

Requirements and deliverables

Individual work

Every student has to make notes on:

Time spent on implementing the model

Number of errors the developing tool reported during the work

...

Important: your notes must be accurate

2009-03-10 delivering model you developed and data you collected

2008-03-11 fill in an online questionnaire:

your experience during the work

your results

13

SaveCCM – For Vehicular SystemsSaveCCM – For Vehicular Systems

Characteristcs:

Many suppliers

Distributed applications

Safety

Reliability

Resource efficiency

(Hard) Real-Time requirements

The SaveCCM component modelThe SaveCCM component model


15

SaveCCT Technology OverviewSaveCCT Technology Overview

RepositoryRepository

16

The SaveCCM component modelThe SaveCCM component model

Restictive in comparision to PC/Internet component models

COM, .Net, EJB

Enable analysis during design-time, and determinstic reproducable behaviour during run-time (test-time)

Textual xml, and graphical UML influenced syntax

Mikael Åkerholm, SaveCCT lecture CBSE Course 200717

SaveCCM Syntax:SaveCCM Syntax:

Basic ComponentBasic ComponentPorts

Trigger, data, combined

Behaviour Read Execute Write

<<SaveComp>>

CalculateOutput

State

IntergrationEnabled

Setpoint

Value

Control

New State

fixed_t error = Setpoint – Value;fixed_t u = fixed_mul(K, e);

if (IntegrationEnabled) u += fixed_div(NewState, T_i);

Control = LIMIT(u, 0, MAX_CONTROL);State = error;



Basic ComponentBasic ComponentPorts

Trigger, data, combined

Behaviour Read Execute Write

<<SaveComp>>

CalculateOutput

State

IntergrationEnabled

Setpoint

Value

Control

New State

fixed_t error = Setpoint – Value;fixed_t u = fixed_mul(K, e);

if (IntegrationEnabled) u += fixed_div(NewState, T_i);

Control = LIMIT(u, 0, MAX_CONTROL);State = error;



SwitchSwitch

Ports Setports determine active configuration

Connection patterns For static or dynamic reconfiguration

<<Switch>>

Mode

IntergrationEnabled

FeebackOut 1

FeedbackIn

FeebackOut 2

To PortFeedback Out 1Feedback Out 2

From PortFeedback InFeedback In

ExpressionIntegration Enabled Integration Enabled

20


AssemblyAssembly Ports

Internal components and connections

Encapsulation of a “subsystem”

PI Controller<<Assembly>>

<<Switch>>

Mode

<<SaveComp>>

CalculateOutput

<<SaveComp>>

UpdateState

State

IntergrationEnabled

Setpoint

Value

FeebackOut

Feedback In

Control



Composite ComponentComposite Component

PortsInternal components and connections

Restricted behaviour, read-execute-write

MultiplyAndAdd<<Composite>>

<<SaveComp>>

Multiply <<SaveComp>>

AddA

B

C

Q

23-04-19 Séverine Sentilles 22

Unified Modelling Language (UML)Unified Modelling Language (UML)

Modelling componentsModelling components

23-04-19

Component diagramComponent diagram

Three representations for a component

But access points are required

Utilisation of interfaces

Utilisation of port

C<<component>>

C<<component>>

C

23-04-19

InterfacesInterfaces Role:

Specification of the access point Required functionalities Provided functionalities

2 existing representation The most descriptive The compact

The compact

<<interface>>

ProvidedItf

<<component>>C

<<interface>>

RequiredItf

<<component>>C

ProvidedItf RequiredItf

23-04-19

PortsPorts

Role:

Access point to the internal structure of the component

Can have 0 or several interfaces

Representation:

<<component>>C

23-04-19Séverine Sentilles26

Relationship between componentsRelationship between components

Use the notion of connector Roughly a way to link components together & make them

”communicate” via a request of services

Generalisation of the means of communication Example:

Client-server Pipe&filter Message exchange

Can also be called horizontal composition

<<component>>Client

<<component>>Server

IdenticalItf


Vertical compositionVertical composition

Can also be called hierarchical composition

Role To increase the component granularity

To expose the content of the component

Use the notion of delegation connector (between two ports)

<<component>>C

<<component>>A

<<component>>B


Profile UMLProfile UML

Extension of the UML model in order to adapt it to the particular requirements of a context

Adjunction of elements Adjunction of constraints But: No suppression !!!

Uses Stereotypes Tagged values OCL Constraints

Examples: Profile for EJB components Profile for a software architecture

cbse - presentations advanced component-based software engineering assignment 2

Documents

cbse presentationsassigment

cbse presentationscbse

journal of systems

ibm software architect

resultsmake assignment

research project page

given requirements

research projectpage