Software Engineering Week 1 Introduction PDF

CP317-Software Engineering Introduction to software engineering – week 1 -1 Shaun Gao, Ph.D., P.Eng. Agenda Overview of the course Software engineering Concept The process of software engineering Requirement gathering System design – high-level design...

CP317-Software Engineering Introduction to software engineering – week 1 -1 Shaun Gao, Ph.D., P.Eng. Agenda Overview of the course Software engineering Concept The process of software engineering Requirement gathering System design – high-level design Software requirement specification – low-level design Development – programming/coding Testing Deployment Maintenance Summary Overview of the course Course Name: CP317D: Software Engineering Instructor: Lunshan (Shaun) Gao, Ph.D., P.Eng. Email: [email protected] Textbook (reference): Beginning software engineering by Rod Stephens; Publisher: John Wiley & Sons, 2015 Software Engineering: A Practitioner’s Approach by R.S. Pressman, 2010 Evaluation: Group project (2x15%) 30% (presentation + project report) Test 2x15% 30% close book Final exam 40% close book Rule 1: Academic plagiarism is prohibited. Project reports and materials for presentation must be delivered to MyLearningSpace. Rule 2: don’t ask for increasing marks. Grade is earned not given. Overview of the course Week1: introduction to software engineering and project management Week2: Requirement gathering Week3: High-level design – architecture design Week4: Low-level design-1 Week5: Low-level design-2 ------ test 1 Week6: Development Week7: Testing and metrics Week8: Deployment and waterfall model Week9: Iterative models-1 ------- test2 Week10: Iterative models-2 and RAD Week11-12: Project presentation Introduction Software engineering Engineering Introduction – cont. Engineering Definition 1: Engineering is the study using scientific principles to design and build machines, structures, and other things, including bridges, roads, vehicles, and buildings: civil/electrical/mechanical engineering Definition 2: Engineering is the branch of science and technology concerned with the design, building, and use of engines, machines, and structures. Question – Think-Pair-Share (TPS): Engineering vs. Science Introduction – cont. Software engineering IEEE definition of software engineering: The study of approaches as in the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software; that is, the application of engineering to software. Fritz Bauer, a German computer scientist, defines software engineering as: “Software engineering is the establishment and use of sound engineering principles in order to obtain economically software that is reliable and work efficiently on real machines.” Definition 1: Software engineering is the study using scientific principles to design and build software products for computer systems. Definition 2: Software engineering is an engineering branch associated with designing and building software products using scientific principles, methods, and procedures. The outcome of software engineering is an efficient and reliable software product. Introduction – cont. Differences between software engineering and other types of engineering The final products are intangible Short history No standard process SE vs. Computer engineering (CE) CE deals with designing, developing, and operating computer systems. In contrast to SE, it emphasizes solving problems in digital hardware and at the hardware-software interface. Introduction – cont. Software products Definition 1: A software product is merchandise consisting of a computer program that is offered for sale. Definition 2: A software product is a software system delivered to the customer with the documentation that describes how to install and use the system. In certain cases, software products may be part of system products where hardware, as well as software, is delivered to a customer. Introduction – cont. Types of Software products Application software – web application, user interface software Middle ware – database, relational database management system Embedded software – software that works in routers, smartphones Real time embedded software – software that works in airplanes, rail train control systems, etc. Introduction – cont. Relationship between software engineering and other engineering The process of software engineering Basic tasks of software engineering Requirement gathering High-level design Low-level design Coding Testing Deployment Maintenance The process of software engineering –cont. Requirements: A requirement is a singular documented physical or functional need that a particular design, product or process aims to satisfy. Understanding Feasibility research Negotiation Requirements changes always happen System design Requirements decomposition Specification Tools selection The process of software engineering –cont. Software design document Data flow Object-oriented design UML (Unified Modeling Language) Implementation Coding Bug fixing Fixing one bug often create a new bug: (a) the bug fix is incorrect; (b) the fix breaks other code that depends on the original buggy behavior; (c) the fix may change system behavior Testing Foundation is requirements Specification The process of software engineering –cont. Deployment: Deployment is the action of bringing resources into effective action. It involves the following: New or new version computer system User training On-site support while the users get familiar with the system Bug fix Maintenance Software maintenance is the modification of a software product after delivery to correct faults, to improve performance or other attributes. It involves the following: Customer support Bug fix SE vs. Developer and Programmer The word engineer only applies to someone who obtained the license of professional engineering. Software analyst, You can apply for P.Eng. SE vs. Developer and Programmer Skills required for software engineers Computer systems (hardware and software) Computer languages Object-oriented design Software testing and debugging (familiar with tools) Problem solving and logical thinking Communication skills (both written and verbal) Team player Management Summary The concept of software engineering Relationship between software engineering and engineering Basic tasks of software engineering Requirement gathering High-level design Low-level design Coding Testing Deployment Maintenance Skills required for software engineers Question: different and relationship between science and engineering Announcement 3-4 students become a group for the group project 2 students focus on project presentation 2 students focus on project report Please email me your group members by end of January Group project requirements Group project evaluation rubrics