CHAPTER I 1. INTRODUCTION The continuous innovation in technology‚ no doubt that it has a great impact in the lives of many people. Because of a lot of advantages and benefits that technologies promised‚ that’s why they learn to adapt this kind of system. The computer age had been implemented‚ especially in the field of business. Many businesses company are using the computerized process as a medium of their transactions. The commonly process that we know in a company is the way they recorded
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first law states that “Errors are most frequent during the requirements and design activities and are the most expensive the later they are removed”. The majority of the errors are found in the requirements specification and design stages of the software development life cycle. If the requirements are not clear and complete‚ then it will lead
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development of a project. In fact‚ it is the first step for any project The main problem in a project failure is the lack of requirements. The common requirement error is due to human (i.e lack of Communication between customer and the analyst)‚ software‚ etc. Example: Denver International Airport Reason: Underestimation of complexity‚ Complex architecture‚ Changes in requirements‚ Underestimation of schedule and budget‚ Dismissal of advice from experts‚ Failure to build in backup
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Company). So in an effort to recover the mistake they built 3 different luggage handling systems one each for two major airlines and the third one for all the other airlines. Boehm’s first law Boehm first law states that “Errors are most frequent during the requirements and design activities and are the more expensive the later they are removed”. Generally errors made while collecting the requirements and developing a project. Questions arise when analysing those errors‚ these questions leads to
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to Software Engineering Somnuk Keretho‚ Assistant Professor Department of Computer Engineering Faculty of Engineering‚ Kasetsart University Email: sk@nontri.ku.ac.th URL: http://www.cpe.ku.ac.th/~sk Somnuk Keretho/Kasetsart University Outline of this presentation • • • • • • Scope of Software Engineering Object-Oriented Software Development Software Process Software Life-Cycle Models Object Orientation Software Quality Assessment Reference to Chapter 1/2/3 of “Software Engineering with
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errors in the project is very expensive or complicated . This law is applicable from midrange systems. Example: City Council – Pay Roll System A city council developed a replacement payroll system believed that users had comprehensive knowledge of all the business requirements. But the current staff or IT team had participated in building the old system - they had no knowledge of how it was built. That leads to many errors and it cause project failure. Boehm’s second
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(CS&IT) Title | Software Engineering-I | Code | CS-321 | Credit Hours | Theory/week: Weight 3 Cr. Hrs. Lectures 2 Duration 1.5 Hrs | Instructor | Saliha Zahoor | Office | B Block Room# :B208 2nd Floor | Email | saliha.zahoor@uog.edu.pk | Prerequisite | Programming fundamental‚ Object Oriented Programming | Category | Core -Computer Science | Aims and Objectives | Aim: Application of software engineering practices to the development of software in information system
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Some Questions on laws related to Software Engineering Ques1: Describe each law in your own words. Illustrate with a practical example. Ans1: Glass’ Law: “Requirement deficiencies are the prime source of project failures” Lack of requirements is the major root cause of unsuccessful projects. The major reason of project failure is lack of requirements. Requirements are usually defined in first phase of project development and if not defined properly may cause problems in further stages and ultimately
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Introduction 2. Chapter1 - History of software engineering & software Engineering as a Profession 3. Chapter2 - Software design & Modeling languages for software design 4. Chapter3 - Software development & Software Testing 5. Chapter4 - Software development process‚ Computer-aided Software engineering Software quality Introduction Software engineering The new Airbus A380 uses a substantial amount of software to create a "paperless" cockpit. Software engineering successfully maps and plans the millions
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The importance of high quality software Software development is a vital activity in modern American society‚ and is likely to have increasing significance in the future. Software manages our bank accounts‚ pays our salaries‚ controls the aircraft we fly in‚ regulates power generation and distribution‚ controls our communications‚ etc. Characteristics of high quality software High quality software shares the following obvious attributes: high quality software is intuitive and easy to use -- the
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