Introduction to Software Engineering

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1 EMBEDDED SYSTEMS SOFTWARE TRAINING CENTER Introduction to Software Engineering COPYRIGHT 2011 DSR CORPORATION

2 1. What is Software Engineering? Solving Problems (cont.) The Analysis Process COPYRIGHT 2011 DSR CORPORATION 2

3 1. What is Software Engineering? Solving Problems (cont.) The Synthesis Process COPYRIGHT 2011 DSR CORPORATION 3

4 1. What is Software Engineering? Problem Solution Example: The Controller Network Network Sensors Control panel Summary data Central data management system Reports Local PC Control COPYRIGHT 2011 DSR CORPORATION 4

5 1. What is Software Engineering? Problem Solution Example: The Controller (cont.) Collection processing transformation (for CDMS) Storing transformation (for UI) COPYRIGHT 2011 DSR CORPORATION 5

6 1. What is Software Engineering? Problem Solution Example: The Controller (cont.) Collection processing transformation (for CDMS) Storing transformation (for UI) COPYRIGHT 2011 DSR CORPORATION 6

7 1. What is Software Engineering? Problem Solution Example: The Controller (cont.) Sensor protocol Collection processing transformation (for CDMS) CDMS protocol Storing transformation (for UI) UI Operating System facilities Hardware limitations 3 rd party SW features COPYRIGHT 2011 DSR CORPORATION 7

8 1. What is Software Engineering? Problem Solution Example: Porting SW System to Other HW Performance increasing Memory consumption reduction Platform-specific compiler support HW limitations (RAM, ROM,CPU) Compiler efficiency Compiler features HW specific compiler COPYRIGHT 2011 DSR CORPORATION 8

9 1. What is Software Engineering? Problem Solution Example: General SW Development Problem Set of features Quality Cost Time COPYRIGHT 2011 DSR CORPORATION 9

10 1 What is Software Engineering? Where Does the SW Engineer Fit In? Relationship between computer science and software engineering COPYRIGHT 2011 DSR CORPORATION 10

11 2. Software Quality Terminology for Describing Bugs A fault: occurs when a human makes a mistake, called an error, in performing some software activities A failure: is a departure from the system s required behaviour COPYRIGHT 2011 DSR CORPORATION 11

12 3. Systems Approach System example: Control Panel Sensor data Sensor data Collector processor Network bridge Summary CDMS Reports DB Web Service Control UI Operating System Hardware 3 rd party SW COPYRIGHT 2011 DSR CORPORATION 12

13 4. Engineering Approach Activities and roles of a development team COPYRIGHT 2011 DSR CORPORATION 13

14 4. Engineering Approach Who Does Software Engineering? Customer: the company, organization, or person who pays for the software system Developer: the company, organization, or person who is building the software system User: the person or people who will actually use the system COPYRIGHT 2011 DSR CORPORATION 14

15 5 Wasserman s Discipline of SE Key Factors The key factors that have changed the software development COPYRIGHT 2011 DSR CORPORATION 15

16 5. Wasserman s Discipline of SE Measurement Using measurement to help find a solution COPYRIGHT 2011 DSR CORPORATION 16

17 5. Wasserman s Discipline of SE Abstraction A description of the problem at some level of generalization Hide details COPYRIGHT 2011 DSR CORPORATION 17

18 References 1. Software Engineering: Theory and Practice / Shari Lawrence Pfleeger 2. SWEBOK. Guide to the Software Engineering. Body of Knowledge Version / A project of the IEEE Computer Society Professional Practices Committee 3. IEEE Std , IEEE Standard Glossary of Software Engineering Terminology 4. The Science of Debugging. Matt Telles, Yuan Hsieh, Mattew A. Telles 5. Anthony I. Wasserman, "Toward a Discipline of Software Engineering," IEEE Software, vol. 13, no. 6, pp , Nov. 1996, doi: / An Investigation of the Therac-25 Accidents // IEEE Computer, Vol. 26, No. 7, July 1993, pp ARIANE 5. Flight 501 Failure. Report by the Inquiry Board. The Chairman of the Board :Prof. J. L. LIONS Мифы о безопасном ПО: уроки знаменитых катастроф. Валерий Аджиев. «Открытые системы», 06, COPYRIGHT 2011 DSR CORPORATION 18

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