Software Engineering. A Short Overview. Hans- Petter Halvorsen, M.Sc.

Transcription

1 Software Engineering A Short Overview Hans- Petter Halvorsen, M.Sc.

2 The beginning... IBM HP The Transistor 1947 Moore s Law 1965 The first Computer???? The Turing machine (Alan Turing, 1936)? Intel 1968 Internet The fist commercial Microprocessor (intel 4004)

3 The beginning Apple I, 1977 Apple II, 1977 Attach a screen and you are up and running Byggesett, måtte sette sammen komponentene selv IBM PC with DOS, 1981 Macintosh, 1984 Everything is integrated even the screen First Computer with Graphical User Interface with Mouse

4 Mac OS 1.0 The beginning Windows 1.0 LabVIEW 1.0

5 Smartphones Today Ultrabooks Internet Apps Web Smartwatches Smart TVs Tablets

6 Muligheter! Kjenner du disse??

7 Muligheter! Jeg glemmer ikke jobbintervjuet, der jeg skrev kode på tavlen foran dem i to dager i strekk. Svetten rant. De siste syv årene har jeg vært med på det som må være et av tidenes største industrieventyr. Hvordan ser en typisk arbeidsdag ut for deg? Det kommer an på fasen i et prosjekt. Tidlig i utviklings- eller konseptfasen er det mye møter. Vi jobber i Scrum- prosess med daglige møter. Senere mot leveringstid er det mye utvikling og koding staar- bak- amazon- skyen Vi bruker 5 minutter på å lese denne artikkelen hver for oss. Du må ta mulighetene når de byr seg men det kreves hard arbeid!! Det å være Systemutvikler er ikke en 9-4 jobb!

8 Muligheter! Utviklet av en HiT/TF student Best Windows 8 App Weather System Download for free from Windows Store (8.5/10) Telemark University College Weather System university- college- weather- system us/app/telemark- university- college/45635f21-4fd ad3c- c7a0caa8c402

9 Software Developer/Software Engineer Typical Job Ad

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11 STD System Documentation Testing Software Test Documentation Test Plan Test Documentation End- User Documentation Implementation Code System Documentation User Guides Deployment Maintenance Your Software with Documentation Design Installation Guides SDD Planning SDP Software Development Plan Project Planning Gantt Chart Requirements Analysis SRS Software Requirements Specifications Gantt Chart Software Design Documents with ER Diagram, UML Diagrams, CAD Drawings

12 Alpha Requirements/Design Plans made a nd approved Beta Building structure finished, Inside work on track RC Foundation finished, building structure started A proof that you can do it, PoC (Proof of Concept) Furniture, Flowers and small adjustments missing RTM Ready for Sale or Move in 12

13 Real life Software Development Project Start Iterations/Sprints The Software is beeing tested internally from beginning to the end (every day) Alpha Beta RC RTM Beta1 RC1 Beta 2 RC2 Beta Project Finished

14 Software Development Daily Scrum Meetings Sprint Reviews & Planning Beta, RC Testing 2-4 weeks 1-12 months 24 hours Days Working Software at all times. Testing every day Weeks Internal Iterations/Sprints Public Beta, RC Releases Months/Years

15 Why Do Reviews, Quality Control and Testing? We will do Reviews, Quality Control and Testing at different levels through the whole sofware lifecycle Cost per defects SDLC (Software Development Life Cycle) 15

16 Software Development Planning, Requirements, Design, Implementation, Testing, Deployment, Maintenance, etc. User Application Operating System Hardware Who are going to use the software? Desktop, Web, Mobile? Windows, OS X, Linux, Android, ios, etc. PC, Mac, Smartphone, Tablet, SmartTV, etc.

17 Windows Server 2016 Software Development Windows 10 Clients Wi- Fi Server Ethernet LAN Router Internet Typical Network & Infrastructure OPC Server Web Server Database Server IIS SQL Server

18 Software Team Stakeholders Project Manager Software Tester UX Designer Software Engineer Software Architect Programmer/Developer You should try all these roles during the semester A System Engineer is a general person that could be a Programmer, Architect, Designer, Tester in different phases in the project, or he could be a tester in one project and a programmer in another project all in one person. That is usually the case in small companies, while in larger companies these roles (designer, tester, programmer) could be a full- time job. 18

19 Scrum A Framework for Software Development Working Software at all times! Iterative approach Scrum at Microsoft:

20 Scrum Members: Scrum A Framework for Software Development Working Software at all times! Designers Product Owner Developers Stakeholders Scrum Process: Product Backlog Sprint Backlog Architects Testers Scrum Master Development Team 3-9 persons Daily Scrum Meetings Max 15 min. Sprint Review

21 Software Requirements & Design Requirements (WHAT): WHAT the system should do Describe what the system should do with Words and Figures, etc. SRS Software Requirements Specification Software Design (HOW): HOW it should do it Examples: GUI Design, UML, ER diagram, CAD, etc. SDD Software Design Document Many dont separate SRS and SDD documents, but include everything in a Requirements document. In practice, requirements and design are inseparable.

22 Typical Software Documentation Project Management (Gantt Chart, etc.) Start Time Finish 1. Planning 2.Requierements /Design (The stakeholders, the software team; architects, UX designers, developers) 2. Testing (QA people) 3. End- user Documentation (The people that shall actually use the software) Software Development Plan High- Level Requirements and Design Documents Detailed Requirements and Design Documents Test Plans Test Documentation System Documentation Installation Guides User Manuals (SDP) WHAT HOW ER Diagram (Database) UML Diagrams (Code) CAD Drawings, etc. How to Test/ (STP) What to Test (STD) Proof that you have tested and that the software works as expected Technical Stuff (Super User/ IT dep.) How to install it How to use it (End User) (SRS) (SDD)

23 Learned in previous courses Focus in this Course Your Toolbox PC Programming and Programming Languages (e.g., C#) IDE (Integrated Development Environment) (e.g., Visual Studio) Software Frameworks (e.g.,.net) SCC Tool (Source Code Control) (e.g., Team Foundation Server, TFS) ALM Tool (Application Lifecycle Management) (e.g., Team Foundation Server, TFS) Knowledge about basic Software Engineering (Requirements, Planning, Testing, and Development Processes like Agile, Scrum, etc.) You cannot do a good job as a software developer without some proper tools!

24 Team Foundation Server (TFS) is an Application Lifecycle Management (ALM) system The Software Development Lifecycle (SDLC) Deployment Maintenance Planning SDLC Management Project Testing Team Management Bug Tracking Foundation MS Project Requirements Visual Studio MS Excel Server Analysis Implementation Collaboration platform Source Code Control Scrum Agile (SCC) Design Visual Studio Online

25 Server Team Foundation Server (TFS) LabVIEW MSSCCI Provider Clients Others Eclipse TFS Services Repository SQL Server Git (TFVC) Team Foundation Server (TFS) is an Application Lifecycle Management (ALM) system Visual Studio Team Explorer Web Access MS Excel MS Project File Explorer Power Tools

26 Visual Studio Online (former Team Foundation Service) TFS is a Source Code Control (SCC), Bug Tracking, Project Management, and Team Collaboration platform Integrated with Visual Studio TFS in the Cloud (This means you dont need to host the server yourself) Free for up to 5 users 26

27 ebooks from Safari Books Online engineering- and- development/ ?bookview=overview

28 Software Engineer What is a good Software Engineer/How to become a good Software Engineer? Discussion in Class See Principles of Software Engineering engineering- and- developme nt/ / chapte r- 3- enginee ring- of- software/49?uicode= telemark from the book Essentials of Software Engineering

29 Hans- Petter Halvorsen, M.Sc. Telemark University College Faculty of Technology Department of Electrical Engineering, Information Technology and Cybernetics E- mail: Blog: 29