CSC444F'07Introduction1 CSC444 Software Engineering Prof. David A. Penny Lectures: 6:10 – 8:00 pm Tutorial Days: 6:10 – 7:00 pm, 7:10 - 9:00 pm lecture Course Website:

CSC444F'07Introduction2 Professional Practices This course teaches you professional software development practices not consistently taught anywhere else. –Deals mostly with process, very little with specs/designs/coding. –If you have the aptitude and inclination of becoming a professional software engineer you will find the course fascinating. Otherwise I guarantee you will be bored! Applying these practices will help you avoid –Missed dates –Poor quality software –Badly-designed features –Poor user documentation –Poor architecture and architectural documentation –Dysfunctional professional relationships between “The Business Side” and Software Development When software is built in a professional fashion in industry, this is how it is consistently done.

CSC444F'07Introduction3 Experience Need –Formal education in the computing sciences –Professional experience Build software that lots of people pay money to buy –Not just “are you paid” Make certain decisions for v1 of a product Live with your mistakes through v2, v3, v4,... Make fewer mistakes next time around We try to fill the gap a bit –Lessons coming out of extensive professional experience Not all professionals agree on what constitute “basic professional practices” –Characteristic of an immature industry –But can agree on the problems we are trying to solve –One (informed) opinion will be presented here

CSC444F'07Introduction4 About Prof. Penny Graduated B.Sc. in CS UofT 8T5, Ph.D 9T3 –OOT IDE, Polyx, MiniTunis, CE,... IBM Labs 1992 – 1994 –C++ IDE for AIX Algorithmics 1994 – 1999 –VP Software Development –RiskWatch > $500M in revenues to-date Consultant 1999 – 2003 –Software management consulting (~10 engagements) UofT CS 2000 – 2003 –Associate Professor Electronics Workbench 2003 – 2005 –VP R&D – Acquired by National Instruments –MultiSim/UltiBoard/UltiRoute (8MLOC) Ceryx 2005 – present –CIO –Provisioning system

Text Required Course Text: –Professional Software Development 2007 edition by David A. Penny ~350 pages –Can buy from me starting next week for $60. CSC444F'07Introduction5

CSC444F'07Introduction6 Grades 2 Solo Assignments – 15% each –A1: Self-Aware Programming –A2: Optimization and Testing –Late Policy: 15% absolute penalty if handed in <= 1 week late Not accepted after that 1 Team Assignment – 25% –Release Planning and Team Software Construction Exam – 40% –Closed book –Covers all lectures, tutorials, assignments, and assigned reading Class Participation – 5% –Based on existence and quality of submitted questions and answers

CSC444F'07Introduction7 Course Conduct Come to ALL the lectures and come prepared –You should have read the assigned textbook reading –You should have thought about it Take notes during lectures. Ask questions to clarify material you are not 100% clear on. Review the posted slides afterwards. Prepare for the midterm and the examinations by re-reading the text and the lecture notes. Practice writing the tests –Previous year’s midterms and exams are posted for your review purposes

LET’S GET STARTED! CSC444F'07Introduction8

CSC444F'06Lecture 19 Top-10 Essential Practices Crystallized for me whenever I enter into a new engagement. If any of these are missing, I know I have something to fix. These are all important It will take more than this course to cover them all You will agree that all suggestions are sensible and will probably vow to carry them out –On your first job, you’ll focus on code and test and forget most of them –You’ll be bitten in the ass –You’ll re-commit to the ideas (if you’re good) Simple but hard –Trust me: make sure these things are done and everything will go ok –Very hard to change behaviour –Need to be dogged and determined and tricky

CSC444F'06Lecture 110 infrastructure control refinement source code control defect/feature tracking reproducible builds automated regression testing release planning feature specifications architectural control business planning effort tracking process control

CSC444F'06Lecture 111 Intended Audience Commercial software vendor environment –Not open source, internal IT, ASP, NASA,... Who –Individual contributors, Technical leaders, First-line managers, Directors, VP’s, CTO’s Next release –Not initial release –“Green fields” is 80% inspiration, 20% process –“Next Release” is 80% process –Next release development is more important to businesses Initial release development –Innovation is clearly also important –Innovation is less amenable to help from process –Should set things up to be sustainable

CSC444F'06Lecture 112 New Product Versus Established One New product –1 yr. to develop –3 coders, 1 tester, 1 documenter –Cost = 1 x 5 x $100,000 = $500,000 Established Product –5 years later –20 coders, 10 testers/build, 5 documenters –Cost to date = $10,000,000 –Ongoing cost = $3,500,000 / year Improve productivity by 10% –New product: save $50,000 –Established Product: save $1,000,000 to date, $350,000/year Next release development is more economically important. Understanding next release development allows you to setup things in a sustainable fashion during an initial release effort.

CSC444F'07Introduction13 Tentative Lecture Schedule dateLectureEvaluation Sep.10Course Introducton, Software Business Environment (ch.15) Sep.17 Release Cycle Overview (ch.3), Releases (ch.7), Versions (ch.8) A1 out Sep.24Top 10 Practices (ch.1), Source Control (ch.9) Oct.1Builds (ch.9) Oct.15Quality Assurance (ch.10)A1 due, A2 out, Oct.22Release Planning (ch.2,3,4) Oct.29Capacity Constraint (ch,5,A,C) Nov.5Estimation (ch.6)A2 due, A3 out Nov.12Defect and Feature Tracking (ch.11,12) Nov.19Process Control (ch.13) Nov.26Architecture (ch.14) Dec.3Proposals and Business Plans (ch.16) - Exam ReviewA3 due