“I THINK WE'RE GOING TO NEED ANOTHER
FEATHER OVER HERE, PROFESSOR. …”
1
TUTORIAL
STARTS
7PM
START RECORDING!
• Recordings in various formats will be available in a few
days
• Check out the Tutor Group Forums for:
• Recording links
• Copies of slides
• Any follow up questions and answers
• Please use the chat box for chat!
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(Note to moderator: Check max. simultaneous talkers)
T320
TUTORIAL
FOUR
3
REVIEW, BPEL, EMA, & THE FUTURE
PROPOSED AGENDA
• BPEL
• EMA Tips, Q & A
• What Do We Know?
• Any Questions
• Important dates
Any questions,
please click the
“raise your hand”
icon
Then type
question in chat
box
Or use
microphone!
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• Where are we?
PROPOSED UN-AGENDA(?)
• The practical work
Everyone is at a different stage
Thoroughly described in Block material
Excellent support from the appropriate national forums
Best worked through at your own pace (IMHO)
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•
•
•
•
“NOT TO BE RUDE OR ANYTHING, BUT THIS
ISN'T A GREAT TIME FOR ME TO HAVE A HOUSE
ELF IN MY BEDROOM.”
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WHERE ARE
WE?
OVERVIEW
Block 1 – E-Business in context
TMA01
Block 2 – Protocols and Data
TMA02
Block 3 – Web Services
TMA03
You
Are
Here
E
M
A
pt
2
Block 4 – Business Processes
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EMA pt 1
IN CASE OF
EMERGENCY…
You have 2 ½ weeks remaining - Do not panic!
• If you haven’t started block 4 • Skip it (big block, lot of work)
• Complete EMA section 1 and headings 1 & 2 of section 2
• See what else you can manage in the time available
• If you did not submit the work plan –
• Create one now
• Add it, and your reflection on it, to your EMA
Contact your tutor if you have any questions or problems
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(More on the EMA later…)
“I DON'T APPRECIATE THE INSINUATION,
LONGBOTTOM. BESIDES, IF ANYONE CARES TO
NOTICE, MY EYEBROWS HAVE COMPLETELY
GROWN BACK.”
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WHAT DO
WE KNOW?
FIRSTLY - BE PROUD!
• T320 is a level 3 course – it is supposed to be hard!
• This is not a course on which everyone routinely scores
90+ on their TMAs
• You are working at the highest undergraduate level
• To get to this stage you have already demonstrated an
excellent level of commitment, learning and effort
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• Even a grade 4 pass is something to be proud of!
BLOCK 1 –
E-BUSINESS
• We learnt about “business models”
• How to use models to describe, categorise and compare a
business and the way it relates to web technologies
• We looked at various case studies
• E-business has evolved enormously (even over the lifetime
of this module)
• We completed TMA01
This was a hard TMA!
We had to decide on our own answer
Find evidence to back up our arguments
Use an academic style
All within a very limited word count
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•
•
•
•
•
BLOCK 1 –
OUTCOMES
• You can understand how business models are used
• And derived your own opinions on how useful they are
• You can read (and appreciate) academic papers
• And have taken some small steps towards writing one
• You have started to bridge the gap between “the business
man” and “the technologist”
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• You have seen both sides of an e-business implementation
• And can communicate effectively with all those involved
BLOCK 2 –
PROTOCOLS AND DATA
• You have looked at standards
• Why they exist
• How they are developed
• How they are used
• We have looked at many ways to encode data
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• And concentrated on XML and XML schemas
• Completing a realistic exercise in the TMA
BLOCK 2 –
OUTCOMES
• You should be able to appreciate that data representation
is a non-trivial issue
• And have some basic understanding of data
representation schemes
• You have seen standards in action
• And can articulate the benefits and problems with them
• You have carried out some basic data design
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• XML knowledge is valuable – sell it!
• But there is a depth and subtlety that remains to be found
BLOCK 3 –
WEB SERVICES
• You looked in detail at the Web Services Protocol Stack
• And saw lots of acronyms!
• You learnt about UDDI
• The problems UDDI was intended to solve still exist
• You carried out a realistic web service decomposition
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• A good, appropriate functional breakdown is the key to
many a successful system…
BLOCK 3 –
OUTCOMES
• Specifically you have an understanding of WSDL style
web services
• Further extending your knowledge of XML
• More generally you have an appreciation of many of the
“big issues” in distributed systems:
• Discovery and definition
• Reuse and granularity
• Scalability and resilience
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• These days, every system is a distributed system!
BLOCK 4 –
ORCHESTRATION
• You have learnt how to read BPMN diagrams
• And to a more limited extent, how to construct them
• You have considered the need for orchestration and
choreography in constructing the high level system
• And you have implemented a (hopefully!) working example
of a BPEL process
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• Building on all the knowledge that you have gained in all
the previous blocks
BLOCK 4 –
OUTCOMES
• BPEL implementation skills are in limited demand
• But the practicals and EMA between them allowed you to
demonstrate a deep understanding
• You have learnt and demonstrated a detailed, technical
skill
• More practically, you have understood BPMN
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• If you are not afraid of BPMN then you should have no fear
of UML (Unified Modelling Language)
• A very widely used set of diagramming tools
“A PITY THEY LET THE OLD PUNISHMENTS DIE.
WAS A TIME DETENTION WOULD FIND YOU
HANGING BY YOUR THUMBS IN THE DUNGEONS.
GOD, I MISS THE SCREAMING.
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EMA TIPS
Q&A
EMA SECTION 1
• Introduction and Conclusion – 10 marks
• As per previous TMAs, esp. TMA01 (See next slide)
• E-Business Evolution – 18 marks
• Material from block 1
• E-Business Adoption – 19 marks
• Material from block 1 & TMA01
• Reflection on Work Plan – 5 + 5 marks
• No right/wrong answer, say sensible things!
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Look carefully at the mark breakdown!
REPORT STRUCTURE
Introduction
Describe what report will cover, who it is for
Body
Background, facts, information
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Conclusion
Recommendations using information from
above
EMA SECTION 2
• XML schema and instance documents - 5 marks
•
• Very similar to parts of TMA02
XML solution discussion - 10 marks
•
• Material from Block 2
Evidence of BPEL orchestration solution
•
• Stage 1 only - 8 marks
• Similar to block 4 practicals 1a, 1b, 2 & 3
• Stage 1 & 2 - 16 marks
• Includes items from other block 4 practicals
BPEL orchestration discussion – 12 marks
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• Material from block 4
Look carefully at the mark breakdown!
EMA TIPS - 1
• Hand Something in!
• No submission = definite fail Submission = possible pass!
• There are no tricks or traps!
• You can take everything you see at “face value”
• Word count limits
• But not too challenging – 2500 “content” words
• Organise your report to help your marker!
• Follow suggested headings in EMA Booklet 1 Page 10
• Carefully read (and follow) “What to submit”
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• EMA Booklet 1 Page 12
EMA TIPS - 2
• The deadline is fixed, no submission possible after cut-off
• But unlimited submissions allowed before that
• So submit early versions in case of problems later
• Only the most recent version will be marked
• Keep up to date with the T320 website
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• Check the news section
• Take a quick look through the EMA forums
• Strongly recommend doing this about 1 week before
deadline
• Check that you haven’t missed anything
• Watch recording of nationwide BPEL Tutorial
“SHOULDN'T HAVE SAID THAT. NO MORE
QUESTIONS, DON'T ASK ANYMORE QUESTIONS!
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ANY
QUESTIONS?
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(SPACE FOR
DIAGRAMS)
“ I WAS MOST UNFORTUNATE IN MY YOUTH TO
COME ACROSS A VOMIT FLAVOURED ONE. I MUST
SAY SINCE THEN I HAVE LOST MY LIKING FOR
THEM.”
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HOW TO
GET MORE
HELP
GETTING HELP
• Read the national forums
• Your question may have already been asked!
• Post in the national forums
• Try to provide detailed information, specific question
• But not your actual answers(!)
• E-mail me – I can answer two types of question:
• “Have I understood the question?” (Yes or no only!)
• “Can you help with this very specific problem?”
• Don’t get fixated, or give up!
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• Move on to other parts of the EMA
“NOW IF YOU TWO DON'T MIND, I'M GOING TO
BED BEFORE EITHER OF YOU COME UP WITH
ANOTHER CLEVER IDEA TO GET US KILLED - OR
WORSE, EXPELLED.
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WHAT
NEXT?
• Workplan Submission Date 13 April – NO EXTENSIONS!
• EMA Submission Date 1st June – NO EXTENSIONS!
• If there are circumstances beyond your control that may affect
your ability to complete the EMA properly
• Submit a PT39 “Special Circumstances” Form
BEFORE THE DEADLINE
• Any questions or problems email k.r.wilcox@open.ac.uk
THANK YOU FOR WATCHING!
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• Check the Tutor Group Forum for slides & recordings