Software Re-Engineering

Duration: 6 min

This video lesson is available to enrolled students.

Return to /learn/DSSSB-TGT-COMPUTER-SCIENCE-COMPLETE-COURSE/software-engineering/software-maintenance-and-configuration-management/software-evolution-techniques/asset-software-re-engineering after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. About Course: About the Course
  2. Section A: General Awareness: Polity, Physics, Biology, Chemistry, Static General Knowledge, History, Geography, Indian Economy, GK- Current Affairs, Evolution of Indian Banking (Banking & Financial Awareness), Environment
  3. Section A: General Intelligence & Reasoning ability: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Analytical Reasoning (Counting Figures Reasoning), Blood Relations, Syllogisms, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Seating Arrangements, Directions (Direction Test), Puzzle Solving (Puzzles), Calendar, Clock, Cubes & Dices, Selection Decision Table (Decision Making), Logical Sequence Of Words, Crypt Arithmetic, Venn Diagram, Data Arrangement, Inequality, Analogy, Ranking, Order and Sequence, TCS NQT Advanced Reasoning Ability
  4. Section A: Arithmetical & Numerical Ability: Ratio and Proportion (Ratios), Divisibility Rules, Data Interpretation, Mixture and Alligation, Permutation and Combination, Logarithm, Number System, HCF LCM, Sequence and Series (Series), Speed Time and Distance, Percentage, Average, Profit and Loss, Simple Interest and Compound Interest, Time and Work, Pipe and Cistern, Mensuration and Geometry, Powers and Exponents (Surds and Indices), Algebra, Probability, Mental Ability, Age Problems, Partnership, Statistics, Arithmetic, Speed Mathematics and Basic Mathematics, Miscellaneous
  5. Section A: English Language & Comprehension: Vocabulary, Subject Verb Agreement (Verb Noun Agreement), Adjectives, Tenses, Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions), Articles, Sentence Construction, Preposition, Direct and Indirect Speech, Sentence Completion (Fill in the blanks), Sentence Re-arrangements (Para Jumbles) (Narrative Sequencing), Modals, Active Passive Voice (Voice), Sentence Correction (Error Correction), Adverb, Conjunction, Cloze Test (Cloze Passage)
  6. Section A: Hindi Language & Comprehension: भाषा, लिपि, ध्वनि, वर्ण, अक्षर, स्वर, व्यंजन, मात्रा और संयुक्ताक्षर, वर्तनी, वर्ण-विन्यास, अनुस्वार, अनुनासिक, चंद्रबिंदु और ‘र’ के रूप, शब्द, पद और शब्द-भेद, संज्ञा और सर्वनाम, विशेषण और क्रिया, लिंग, वचन, पुरुष और कारक, काल, वाच्य, वाक्य और वाक्य-भेद, संधि, समास, विलोम शब्द, पर्यायवाची शब्द, सामान्य अशुद्धियाँ, अनेक शब्दों के लिए एक शब्द, मुहावरे और लोकोक्तियाँ, अपठित गद्यांश और अपठित पद्यांश, Multi-Topic Content (Cross-Concept Material), वर्णमाला
  7. Section B: Programming, Data Structures, OOP & Java: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling, Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, Java, OOPS with C++, Language Design, Intro to Compilers, Visual Basics, Syntax Analysis: Bottom-Up, Object Oriented Technology
  8. Section B: Computer Networks, TCP/IP & Network Security: Introduction to CN, Data Communication, DLL: Flow Control, DLL: Access Control, DLL: Error Control, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Access Technologies, Network Security, Society, Law & Ethics, Mobile Computing, Net Layer:Routing Protocol, Cyber Safety and Security
  9. Section B: Teaching Methodology: Child Development, Concept of Pedagogy, Theories, Inclusive Education, Experiential Pedagogy, Assessment & Evaluation, Curriculum Framework & Reforms, National Education Policy (NEP) 2020, Psychology, Teaching-Learning Process, Personality Development, Teaching Methods & Strategies, Learning and Motivation, Learners & Learning Process, Factors Affecting Teaching, Methods of Teaching, Nature, Objectives & Characteristics of Teaching, Teaching-Learning Aids & ICT Integration, Classroom Management & Communication, Evaluation, Assessment & Measurement, Curriculum & School Environment, Inclusive Education & Special Needs, Professional Development & Ethics
  10. Section B: Digital Electronics / Boolean Logic: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits, Number System, Number Representation, Analog-Digital Conversion
  11. Section B: Operating Systems & Linux: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Threads & Process Creation, Deadlock, Memory Management, Virtual Memory, File Management, Disc Scheduling, Unix OS, Linux OS, Distributed Systems, Windows OS
  12. Section B: Data Base Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, Relational Algebra, SQL, File Organization & Indexing, Transaction Management, Concurrency Control, Database Security & Authorization, Database Recovery, Data Warehousing & Mining
  13. Section B: Internet & Web Technologies: Website, Browser & Services, Internet Fundamentals, Web Design & Development, Protocols & Services, Web Publishing & Hosting, Server Side & Security, HTML Basics, CSS, Emerging Technologies, JavaScript-Basics, .Net Programming, Electronic Data Interchange and E-Commerce, XML
  14. Section B: Computer Fundamentals, IT Basics & Architecture: Basics of COA, Cache Memory Organization, Input Output Organisation, Register Transfer and Microoperations, Control Unit Design, Programming the Basic Computer, Terms & Abbreviations, MS Office Applications, Instr Formats & Modes, Floating Point Rep
  15. Section B: Python Language: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis
  16. Section B: Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management, extras, Fundamentals of Systems and Information Systems
  17. Section B: Design & Analysis of Algorithms: Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Dynamic Programming, Minimum Spanning Trees, Shortest Path Algos, Advanced Algorithms
  18. Section B: Mathematics: Linear Algebra, Calculus, Trigonometry, Vectors, Set Theory, Functions, Relations, Propositional and Predicate Logic, Research Process Steps, Graph Theory
  19. Section B: Computer Graphics, Multimedia & Mobile Computing: Basics of Computer Graphics, 2-D Geometrical Transforms and Viewing, 3-D Object Representation, Geometric Transformations and Viewing, Multimedia
  20. Section B: Emerging Trends: Emerging Tech Trends, Knowledge Representation, Natural Language Processing
  21. DSSSB Previous Year Paper:
  22. Business Studies and Management: Business Communication, Business Organization and Management, Financial Accounting, Business Economics, Management Information System (MIS), Knowledge Management & New Economy
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video provides a comprehensive overview of software re-engineering, a process for improving existing software systems. The lecture begins by defining software re-engineering as the examination and modification of an existing system to enhance its functionality, performance, or adaptability without altering its core function. It is often used to restructure legacy systems to improve understandability, maintainability, and to adopt newer technologies. The video then presents a circular diagram illustrating the key activities of re-engineering: Inventory Analysis, Forward Engineering, Document Reconstruction, Reverse Engineering, Data Re-construction, and Code Re-engineering. The instructor elaborates on these activities, defining Reverse Engineering as the process of deconstructing a system to understand its components and relationships, often to create documentation. Restructuring is described as transforming source code into a more maintainable form, which can include code refactoring. Forward Engineering involves making changes to improve the system or adapt it to new requirements. Re-documentation is highlighted as the process of updating or creating new system documentation. The video concludes by listing the benefits of re-engineering, such as lower costs compared to new development, lower risks due to incremental improvement, better utilization of existing staff, and the ability to develop in stages. The presentation is delivered by an instructor, Sanchit Jain, from Knowledge Gate, with a consistent copyright notice at the bottom of the slides.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with a title slide for 'SOFTWARE ENGINEERING' and '#knowledgegate'. It then transitions to a slide titled 'Software Re-Engineering' which defines the concept as the process of examining and modifying an existing software system to improve its functionality, performance, or adaptability without changing its core function. The slide also states that this is often done to restructure a legacy system to enhance understandability, maintainability, and to upgrade to newer technologies. A circular diagram illustrates the re-engineering process, showing a cycle of activities: Inventory Analysis, Forward Engineering, Document Reconstruction, Reverse Engineering, Data Re-construction, and Code Re-engineering. The instructor, Sanchit Jain, is visible in a small window at the bottom right, speaking into a microphone.

  2. 2:00 – 5:00 02:00-05:00

    The video continues with a detailed explanation of the re-engineering activities. The first slide, titled 'Software Re-Engineering Activities', defines 'Reverse Engineering' as the process of deconstructing a system to understand its components and their relationships, often to create documentation for a system where none exists or is outdated. The next slide defines 'Restructuring' as transforming existing source code into a more maintainable form while preserving its functionality, which can include code refactoring. The following slide explains 'Forward Engineering' as making changes to the system after understanding and possibly restructuring it, to improve it or adapt it to new requirements, such as implementing new features or using a new technology stack. The final slide in this sequence, 'Benefits of re-engineering phases', lists four key benefits: lower cost compared to new system development, lower risks due to incremental improvement, better use of existing staff, and incremental development in stages. The instructor continues to speak throughout, providing context for the on-screen text.

  3. 5:00 – 5:57 05:00-05:57

    The video concludes with a final slide that displays the text 'THANKS FOR WATCHING' in large, white, capitalized letters against a dark, futuristic background with blue and white digital lines. Below this, the hashtag '#knowledgegate' is shown. The instructor's image is no longer visible. This slide serves as an outro, signaling the end of the lecture.

The video presents a structured and logical progression on the topic of software re-engineering. It begins with a clear definition and purpose, establishing the context of why this process is necessary. The central part of the lecture uses a visual diagram to break down the complex process into a series of interconnected activities, which are then explained in detail. This approach effectively moves from a high-level overview to specific, actionable concepts. The final section on benefits provides a strong rationale for choosing re-engineering over other options, summarizing the key advantages. The consistent presence of the instructor and the clear, text-based slides make the information accessible and easy to follow for students.

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