Software Engineering and Architecture Introduction to SWEA Corona - - PowerPoint PPT Presentation

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Software Engineering and Architecture Introduction to SWEA Corona - - PowerPoint PPT Presentation

Oct 14, 2022 210 likes •498 views

Software Engineering and Architecture Introduction to SWEA Corona Combat These are challenging times Move to your Stamhold Section Wipe the surfaces ugens spritter Stay at your seat in the break unless Nature

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Software Engineering and Architecture

Introduction to SWEA

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Corona Combat

  • These are challenging times…
  • Move to your Stamhold Section
  • Wipe the surfaces – ‘ugens spritter’
  • Stay at your seat in the break unless

– Nature calls – Urgent and important private calls

  • Leave on my command

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Agenda

  • Who am I?
  • Why is this course interesting?
  • What are the learning goals?
  • How are we organized?
  • How will I pass this course?

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Who is the Captain?

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The lecturer

  • Henrik Bærbak Christensen
  • Associate professor (lektor) since 2003

– Collaboration with many Danish IT companies

  • Systematic, Jyske Bank, Terma, B&O, KMD, Uber, Danfoss, …

– Actually have had complex software in production ☺

  • Faglig koordinator for Master (SWK) / IT-Vest
  • Owner of
  • Course development

and consultancy

  • http://www.imhotep.dk

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And as a Teacher – I value…

  • I need to know the problems to try to fix them!

I get my salary to help you get the best outcome of my course as possible! (within the context of sound teaching)

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Why is SWEA Interesting?

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Because…

  • If you aim for industrial software development...

– SWEA will cover a lot of industrial strength methods, techniques and tools. No toy tools. No techs that does not scale to FaceBook

  • development. No methods that would not be used by MicroSoft

teams.

  • If you aim for research in security, algorithms, UI,

physics, …, or for going into management...

– You will want just to pass the exam ☺ and that is fine with me!

  • There will be a link to ‘How to pass SWEA”

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What are the Learning Goals?

Or: What are the values and foundation?

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There Will Be Code

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Knowledge versus Skills

  • What knowledge, what skills are required for ?

– Doing heart surgery Flying F16 in combat – Developing the Twitter software and architecture

Knowledge Skills

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SWEA emphasize…

  • Skills!
  • “The Strategy patterns is defined by Gamma as ...”

– (and then I draw the UML diagram I have memorized)

  • Fine, but I prefer to see...
  • This code would benefit by introducing the Strategy

pattern and in Java I will code it like this:

– private WinnerStrategy ws = new PlayerWithMostArmiesStrategy(); ...

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Programming is a contact sport!

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How do we emphasize skills?

  • The schedule reads ”TØ”
  • The term ”Teoretiske Øvelser” is disliked in SWEA ☺!
  • We have a three hour lab where you hone your skills

in developing reliable and flexible software using agile processes! (Using the knowledge you gain by reading

the book ☺)

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Software Development?

  • Best way: Building
  • r

Growing

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No ‘Correct’ Answer, but

  • Building

– An early mistake is very expensive to correct

  • Think too weak building foundation 
  • Growing

– Grow a simple system towards users’ needs

  • Examples

– Facebook, Uber, Google, …

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Facebook anno 2004

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How is it Organized?

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Focus on Skill Acquisition

  • Lectures – Zoom and Auditorium Experimentation

– All physical are also on Zoom. Some are only on Zoom – Experiment with some blended learning + screencasts – Just about 3-4 hours a week, - with a lot of exceptions

  • Labs

Will probably be physical

– Work on the mandatory project !

  • Grow software! Use the book’s techniques! Hone your skills!
  • Study Café

Will be on Zoom

– Work on the mandatory project !!

  • In the teams

– Work on the mandatory project !!!

Constructivism: Students learn by what they do, not by what the teacher does…

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Designed to have more load early than late !

Mandatory Overview

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Feedback

  • Feedback drives learning

– I will urge TA’s to

  • provide fast feedback on Mandatory
  • focus their feedback on most important area of improvement
  • And I want to align their attention to key learning goals

– WarStory: Once had TA’s from math CS that added lot of proofs to my course => double workload and frustration…

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Feedback Schema

  • Rubrics approach

SWEA Evaluation Sheet

Iteration 1 Mandatory: TDD of AlphaCiv

Guidelines Pass Argument

Submission No

Learning Goal Grade Argument

TDD Process Test Code Production Code

Improvement Focus

1st 2nd 3rd Score Average 0,00 Not accepted - rehandin Legend Grade Assesses the coverage of the Learning goals and the number of errors 0 Unacceptable 4 Adequate (Minor coverage, and several significant errors) 7 Good (Good coverage with some errors) 10 Excellent (Very good coverage with minor or no errors)

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Affects the Exam Grade

  • The 10 mandatory deliveries are marked, giving points
  • These points influence the final grade

– Mostly in cases of doubt (ala ‘is it 7 or is it 4’?)

  • Many points pull towards the high grades
  • Few points pull towards the low grade
  • Too few point (below 40%) means failed mandatory
  • Oral Exam thus is the central aspect of the grade

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E20 Changes…

Based upon E19 feedback a. o.

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Changes compared to E19

  • Moving towards less lecturing in the auditorium (small steps)

– Partly due to Corona situation – Partly because lecturing is a rather poor teaching format

  • Constructivsm = learn by doing. But what do you really do during my lectures?

– Partly because I want to do something new…

  • Study Cafe and Corona?
  • Improve Iteration 8 mandatory

– Plan to lower workload compared to E19, due to numerous requests…

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Changes compared to E19

  • Released FRS10th anniversary document on www.baerbak.com

– Highlights changes in technology stacks

  • Released FRDS 2nd Edition

Phew…

– Major overhaul of underlying Broker library

  • Code bases updated to Gradle 6.5 and Junit 5

– Tech stack evolves – no real benefits, just lots of work 

  • Experiment with GitLab pipelines and Continuous Delivery

– Switching from releases to continuous delivery – Git commit automatically runs your tests and coverage generation – May help TA’s in providing line based feedback within GitLab

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Summary

  • We are going to build complex systems that are flexible

and reliable

  • We hypothesize this is best made in an evolutionary way

– Grow flexible, testable, software – Learn as we go, prepare to get wiser – Agile manifesto

  • We need production quality tools to do so

– JUnit, Gradle, Git, IDEs, ... – Start right away...

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Summary

  • Your learning will

– Resemble industrial strength development

  • Long term maintenance (> 1 week!)
  • Customer requirements driven
  • Focused on one single project (almost)
  • Read the intro page about the mandatory project!!!

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Summary

  • I love strategy games ☺

– Mandatory Project: Tribute to the classic...

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