SCEA certification

Alain Hsiung, IdeartisJava Users Group SwitzerlandTechnopark Zurich, 5.12.2003

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Content

The exam Part I Part II Part III The schedule framework Working in group

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Motivation

Highest J2EE certification 31 certified SCEA (aka SCJA) in Switzerland (22.9.2003)

92% succeeded part I, 77% part II+III

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SCJ P 1.2 SCJ P 1.4 SCJ D SCWCD SCWCBD SCJ A I SCJ A I I+I I I

candidate certified

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The exam

Part I: 48 questions, multiple choice, 1h1/4,pass score 68%.

Hint: 16 questions = 20mn, mark unsure questions, pass through marked questions: 15mn

Part II: project, unlimited time (1 year), pass score: 70%. Deliverables: 1 class diagram, 1 component diagram,

sequence diagrams, assumptions. Hint: use OOA/OOD methodology.

Deliver a section on „design decisions“ (including the design patterns you chose).

Part III: 4 questions, essay, 1h1/2, scored with part II. Hint: anticipate questions concerning your architecture.

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Part I: objectives

Common architectures Legacy connectivity EJB, EJB container Protocols Applicability of J2EE technology Design Patterns Messaging Internationalization Security

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Part I: preparation

[course „Architecting and designing J2EE applications“, SL-425 Sun Edu]

Book: SCEA for J2EE TechnologyStudy Guide, Sun Press

Good overview on the main topics But topics missing: Common

architectures,Legacy connectivity and Messaging.

Not enough details (other readings are necessary)

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Part I: preparation

More detailed readings www.ideartis.ch (under news) www.bm-one.com/Se/scea1.htm www.leocrawford.org.uk/work/jcea/part1/ saloon.javaranch.com

Mock test www.whizlabs.com/scea/scea.html highly recommended, also poor quality

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Part II

[Take an OOA/OOD course] Use OOA/OOD methodology!! Continuously write down assumptions Look at many hints in my discussion thread on

javaranch forum Think as an architect, not a developer Rewrite the use cases in your (better) terms,

draw an activity diagram, a deployment diagram and user interface outputs for yourself; it helps.

Take time to make the class diagram solid (most failures are there)

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Part II

Component diagram for J2EE There is almost no litterature Use J2EE design patterns Read the case study in the SCEA

Study Guide

Make the diagram layout clear and notation (stereotype, labels, names, comments) consistent

Use a „real“ UML tool Like Together, Rose and MagicDraw Because correct syntax is scored

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Part III: preparation

Very easy if you have done part II yourself. Anticipate a few questions on service-level

requirements and key design patterns concerning your architecture

scalability maintainability security session handling persistence

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Schedule framework

study part I

buy voucher at s

un

registe

r for e

xam at p

rom

etric

take exam

at IBM, G

KN, Mig

ros, e

tc.

start

do part II prepare part III

download p

art II

upload p

art II

receive em

ail

registe

r for e

xam

take exam

finish

•Read 1-3 chapters, take notes & meet to discuss lessons learned and issues. Iterate.•Do mock test, take notes & discuss lessons learned and issues. Iterate.

•Make draft & meet to discuss issues.•Make a version 1.0 & meet to discuss issues.

2W 1W4-6W100h effort 100h effort

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Working in group

Team building 2-3 persons Start and duration match

Information platform For meetings, documents Hint: use smartgroups

Discussion forum Worldwide Hint: use javaranch forum

Ethic: part III assignment is the same for all candidates. Hint: discuss principles and methodology, not concrete

design and domain details.

duration (days)

experience

very high (50h)

high (100h)

medium (200h)

eff

ort

2h/d 25 50 100

4h/d 12.5 25 50

8h/d 6.25 12.5 25