[PPT] - Welcome to the course TDT4250 Model-Driven Development of PowerPoint Presentation

SLIDE 1

Welcome to the course TDT4250 Model-Driven Development of Information Systems

Hallvard Trætteberg, Associate Professor IDI, NTNU

SLIDE 2

This week

chap B1

Information about the course Motivation

Why model? Why take this course ? Clarification of the scope of the course

Overall picture of the use of modeling

approaches in information systems development and evolution NB! The course is part of several study programs, including an International Master program and will be lectured in

English. Please feel free to ask questions

in Norwegian (or English)

SLIDE 3

Background on me

Siv.ing (Master) and PhD IDI, NTNU (1991, 2002) Employed 5 years in SINTEF ICT (Oslo) Started as Associate Professor at IDI 2002 (after finishing PhD) Married, 2 children http://www.idi.ntnu.no/~hal

UI design

Modeling

Software Engineering

SLIDE 4

Background on the course TDT4250

Have been a course on modeling

techniques within the information systems (IS) group last 20 years

Content changed regularly (yearly),

emphasis has changed as the application

f modeling in practice change:

process modeling with industry-standard BPMN practical modeling with Eclipse-based tools

Follow-up course: TDT4252 - Modelling of

information systems

Spring, more research-oriented

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”Prerequisites” for TDT4250

OO (UML) modeling Class diagrams Collaboration diagrams Sequence diagrams Use-Case diagrams Activity diagrams

ER modeling Process modeling DFD or sim.

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Your background ?

Study program Earlier courses Modeling experience Learning expectations

Short survey in the end Reflection note

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Learning goals (From study plan)

theoretical insights into different languages and

techniques used in industry for model-driven information systems development

BPM – Business Process Management MDA / MDD – Model-driven development EA – Enterprise Architecture DSL/DSM – Domain specific languages / modeling

practical skills in making good models in central

parts of the above areas

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Course information: Curricula, lectures

Curriculum
Michael Havey: “Essential Business Process Management”,

published by O’Reilly

Parts of another book (under revision)
Collection of articles

Do NOT plan to print these centrally Available on the net (through it’s learning)

Lectures and assignments are also part of the curriculum
Persons
Main responsible: Hallvard Trætteberg
Assignments: Hong Guo and Gustav Aagesen
Lecturer: Hallvard Trætteberg
Some guest lectures
Lecture time (but expect changes)
Lectures: Tuesdag 12-14 in F4 and Thursday 14-15 in F3
Exercises: Wednesday 17-19(!) in F3

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Course information: Assignments

Some of the assignments counting on the final

grade (portfolio evaluation)

Assignments counts 30%, 70% on written exam Points from both assignements and exam put together to calculate

the final grade

Assignments both on the computer (using various

tools),on paper, and on the web

Assignments done in groups

You are expected to form own groups (3-4 people)

More information on the assignments/exercises on

Thursday 20/8 14:15-15:00

Please also nominate 2-3 people to reference group

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Overall terminology

Information systems
Both the automated part and
information processing performed by humans (alone or supported by

information systems)

Model: can be almost anything
Representation of the past, current, or potential future
More abstract, usually less comprehensive, and normally cheaper to make

than what it models

Important to select which parts to represent
In TDT4250: Modeling across the areas of analysis, design and use, focus on
Models directly used as part of the (executable) information system
Models transformed into the (executable) information system
Analysis: Understand a problem (descriptive mod.)
Requirements specification: indicate a solution (prescriptive mod.)
Design specification: Detail a technical solution (prescriptive mod.)
Modeling of work in work (reflexive mod.)

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Information systems come in many forms

Filserver/DBserver NTAS FCP V2.4 Oracle NTAS/LM TCP/IP NTAS/LM TCP/IP IP WAN Foundation BULL Gateway

Local office

AIX

Windows 3.1/ 4.x FCP 2.4 AIX FCP 2.4 Customer system BULL DPS 9000 FCP V 2.4 Oracle

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Motivation (1)

IS development is ripe with modeling tasks A model represents how people perceive an

area (domain)

Important to understand the mechanisms that

are in play when modeling (alone or in a large group of people)

Important to be able to say if a model is

(sufficiently) good or not, and how good models and modeling languages can be made

Modeling (in e.g. analysis and requirements

specification) is difficult

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Motivation (2)

Many large IS projects with overruns Potential of model-driven approaches

Quicker development of information systems Development of more flexible information systems

Program code

Detailed, expensive to write and maintain Implicit model/requirements, poor overview Difficult to discuss with end-user What if there is a buy or make decision? What if there is an automate or support decision?

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Motivation (3)

Models are

Quicker and cheaper to make than the full artifact, but similar so that it is often possible to spot

consequences of decisions e.g. by means of analysis, simulation, inspection etc.

Risk-free testing

What-if scenarios Accident simulation

Avoid costly mistakes Produce more innovative results of better quality

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Motivation (4)

Who can benefit from the material lectured in the course?

Everyone involved with system development, especially those involved

in model-driven development (e.g. use EA, MDD/MDA, BPM or SOA)

Especially those working with database systems, web application,

telecommunications and mobile systems, workflow/BPM systems, ERP-systems – These are areas where modeling is used a lot

Those working with choice and adaptations of development

methodology, modeling language or modeling tool in an organization

Those working with the development of modeling tools

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Scope of the course(1): What kind of models?

Modeling of the current situation

Analysis

Perceived future information system (IS) Perceived future computerized IS (CIS)

Requirement specification

Design of future CIS

Design

Change of operative solution

Interactive model, model as configuration

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Scope of the course (2)

A large number of modeling languages (>500),

methodologies and tool, new are developed constantly

Not possible to cover everything More emphasis on

Learning for future learning Application of general frameworks A selection of a limited number of modeling languages and

methods to work with in more detail

Try to avoid too much fragmentation

Several articles on the same languages, some overlap

between articles

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Overall time schedule for lectures (may change)

Week 34: Introduction and overview
Week 35: BPM and workflow
Week 36: Process modeling languages
Week 37: BPMN
Week 38: Process patterns/BPEL/WFMC
Week 39: Quality of models and languages
Week 40: Enterprise modeling/Enterprise Architecture
Week 41: Guest lecture Accenture (EA->BPM->SOA)
Week 42: MDA, EMF and model transformations
Week 43-44: Application of MDA
Week 45: Meta-modelling and Domain Specific Modeling and

Modeling Languages

Week 46: Course summary and wrap-up

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