Mar 17, 2017 software engineering software process and software process models part 2. Software design methodologies and testing department of computer engineering this presentation is about software design methodologies and testing. Adaptive maintenance is concerned with the change in the software that takes place to make the software adaptable to new environment such as to run. For full details of each course presentation content and pdf book please follow the links in the list below for the individual items. Keeping track of it gives excellent insights into your engineering practices. The objective of software maintenance is to modify existing software while preserving its integrity. Software engineers apply the principles of software engineering to the design, development, maintenance, testing, and evaluation of software. Definitions the act of keeping, or the expenditure required to keep, an asset in condition to perform efficiently the service for which it is used.
Importance of maintenance rates of software engineering failure requirements very high. Software maintenance software evolution software types laws of. Software engineering was introduced to address the issues of lowquality software projects. The primary objective of software maintenance is to make the software system operational according to the user requirements and fix errors in the software. Types of software maintenance in hindi language youtube. Aug 16, 2017 the software development landscape changes constantly. Another of the many types of software maintenance in software engineering is corrective maintenance. The system types of software in software engineering are the software that are used by computer systems to manage the hardware components that are there. It may be just a routine maintenance tasks as some bug discovered by some user or it may be a large event in itself based on maintenance. Enhancing maintainability many activities during software development.
Software engineering cse btech notes cse btech notes. Software maintenance the first law of software engineering no matter where you are in the system life cycle. Nov 27, 2016 what is the purpose behind the software maintenance. As a result there are a number of specialties and types of software engineering degrees. Software design how to design software software development how wi software testing do we know o software maintenance software quality ngineering exactl d h f h ly does the software have the structure and layout of ll we implement the design ur code is correct. Types of maintenance in a software lifetime, type of maintenance may vary based on its nature. If the software must be ported to another platform without any change in functionality, this process will be used and a maintenance project team is likely to be assigned to this task. Software maintenancesoftware maintenance a very essential activity.
Categories of software maintenance there are four types. Corrective maintenance is concerned with fixing errors that are observed when the software is in use. Fritz bauer, a german computer scientist, defines software engineering. It is study and application of engineering to design, development and maintenance of the software. Tech 2nd year software engineering books at amazon also. There are four types of maintenance, namely, corrective, adaptive, perfective, and preventive. The purpose of software maintenance is defined in the international standard for software maintenance. Buy and save 30% on all our maintenance training powerpoint presentations, reliability, maintenance engineering and asset maintenance management training course content and maintenance pdf books. Software re engineering allow us to translate source code to new language, restructure our old code, migrate to a new platform such as clientserver, capture and then graphically display design information, and redocument poorly documented. Software maintenance is often considered to be an unpleasant, time consuming. S o f t w a r e m a i n t e n a n c e types of software. Powerpoint presentations on civil engineering civil ppt. The ieees guide to the software engineering body of knowledge 2004 version, or swebok, defines the field and describes the knowledge the ieee expects a practicing software engineer to have. Sometimes, maintenance also involves adding new features and functionalities using latest technology to the existing software system.
Ieee defines architectural design as the process of defining a collection of hardware and software. Software is considered to be a collection of executable. Software software is a set of instructions or programs written by programmersdevelopers on various languages for computer to perform some specific task software is. It helps the project manager to further predict the effort and time which will be needed to build the project. It can also give you an idea of the maturity level of your product and codebase.
The ieee also promulgates a software engineering code of ethics. Software engineering capability maturity model cmm. Software maintenance maintenance and the sdlc in the waterfall software development lifecycle, we had a nice little box at the end of the process and one which was generally ignored in descriptions of the process in more advanced lifecycles such as the spiral model, maintenance was accorded a much more prominent place still, maintenance is a relatively neglected aspect of the sdlc examples. Software engineering methods rely on a set of basic principles that govern each area of the technology and include modeling activities and other descriptive techniques. Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes a common perception of maintenance is that it merely involves fixing defects. Powerpoint presentation on software testing powerpoint. As you may expect, there are a number of subcategories of software engineering. We need our software to work smooth while integrating to multiple other tools, frameworks, features, functionalities, etc.
Swebok kas closely related to this software engineering process ka include software engineering management, software engineering models and methods, and software quality. However, one study indicated that over 80% of maintenance. Software engineering shares common interest with other engineering disciplines. Department ofcommerce nationalbureau ofstandards computerscience andtechnology nbs buctons natlinst. Corrective maintenance this type of maintenance is initiated by defects in software. It is become important since several software products lack of documentation and are highly unstructured. When we need to update the software to keep it to the current market, without impacting its functionality, it is called software re. Software reengineering is a process of software development which is done to improve the maintainability of a software system. Categories of software maintenance software testing software. Software engineering diversity there are many different types of software system and there is no universal set of software techniques that is applicable to all of these.
The foundation for software engineering is the process layer. Software maintenance, understanding the 4 types coderhood. Apr 16, 2020 the abovementioned software testing types are just a part of testing. Software maintenance software maintenance in software engineering is the modification of a. Software engineering software process and software process. These concepts are not always easy to understand or. Types of maintenanceall maintenance activities have been grouped under four classes. Generally, it service providers suggest their clients to go for software maintenance services for the consistent and enhanced performance of the system. Modification of a software product performed after delivery to keep a software. We need to upgrade your system with latest technologies 2.
Like other engineering domains where a given problem for example, building a bridge can be solved by following a series of interrelated steps, the software. So i have covered some common types of software testing which are mostly used in the testing life cycle. Five types of maintenance are in fact recurrent in the industry. Sdlc the software development life cycle sdlc, or system development life cycle in systems engineering, information systems and software engineering, is the entire process of formal, logical steps taken to develop a software.
Estimation of the size of software is an essential part of software project management. Software maintenancesoftware maintenance a very essential activity 2. The software needs the architectural design to represents the design of software. Types of software maintenance in software engineering. They are the ones that are used to maintain the system as well. Software engineering architectural design introduction. Effective software testing helps to deliver quality software products that satisfy users requirements, needs and expectations. The outcome of software engineering is an efficient and reliable software product. Problems arise when a software generally exceeds timelines, budgets, and reduced levels of quality.
Download 17 maintenance ppt, maintenance powerpoint. Software engineering tutorial 2 1 the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software. Managing people powerpoint html lecture 26, risks in software engineering powerpoint html lecture 27, software engineering as engineering powerpoint html. The three types of software in software engineering are the system software, utility software, and applications software. Software engineering software process activities part 3. These slides, covering the topics of software maintenance and evolution, are. Software engineering, 6th edition, ian sommerville, addisonwesley, isbn 0209815x. In fact, a study suggests that over 80% of software change is attributed to non bug related changes. Software engineering software maintenance geeksforgeeks. A software project is the complete procedure of software development from requirement gathering to testing and maintenance, carried out according to the execution methodologies, in a specified period of time to achieve intended software product.
Reverse engineering reverse engineering is the process followed in order to find difficult, unknown and hidden information about a software system. There is much discussion about the degree of education and or certification that should be required for software. New areas of specialization, technologies, and methodologies pop into existence every few months, forged by the relentless innovation of the software industry. The utility types of software in software engineering are the software that are used to keep the system at tip top shape. If you continue browsing the site, you agree to the use of. Why software testing it is important as it cause impact on operational performance and reliability if not done properly. If you continue browsing the site, you agree to the use of cookies on this website. Often we employ programs created using the best design and techniques at their time, when program size and storage space were principal components. Corrective maintenance of a software product may be essential. Adaptive maintenance is the implementation of changes in a part of the system, which has been affected by a change that. Pdf maintenance and its types engr sajid chaudhary. The most current swebok v3 is an updated version and was released in 2014.
Software maintenance software quality ngineering exactl d h f h ly does the software have. Software engineering institute sei has developed a comprehensive model to determine an organizations current state of process maturity the grading scheme determines compliance with a capability maturity model cmm. If done poorly, it leads to high maintenance cost and user dissatisfaction 4. It is aided with version control tools to control versions, semiversion or patch management. Mar 18, 2017 software specification or requirements engineering is the process of understanding and defining what services are required and identifying the constraints on these services.
Pressman has no specific chapter on maintenance, somerville has 15 pages out of 742 pages january. Software engineering tools provide automated or semiautomated support for the. Maintenance management configuration management is an essential part of system maintenance. Various maintenance predictions and the questions associated with them. Software maintenance the first law of software engineering no matter where you are in the system life cycle, the system will change, and the desire to change it will persist throughout the life cycle bersoff et al. For example, the percentage of time that you spend in each of the four maintenance types gives you an idea of the maturity and skill level of your software engineering organization. Software engineering is a detailed study of engineering to the design, development and maintenance of software. Types of software in software engineering types of. Ppt software engineering process models powerpoint. Software engineering architectural design geeksforgeeks. Then there are those types of software maintenance in software engineering where, though it may seem like the software is being corrected, the reason for maintenance is actually to improve the performance and, of course, the maintainability of the phones software. Understanding the different types of changes your software can go through is important to realize that software maintenance is more than just bug fixing.
The migration process is exceptional, and is not part of daily maintenance tasks. Categories of software maintenance maintenance can be divided into the following. Introduction to software engineering the term software engineering is composed of two words, software and engineering. Topics in software e sf r i software requirements wh what e to do. Cmm defines key activities required at different levels of process maturity. This includes modifications and updations when the customers need. Gadakh from the department of computer engineering at international institute of information technology, i. Process models in software engineering walt scacchi, institute for software research, university of california, irvine february 2001 revised version, may 2001, october 2001 final version to appear in, j. Four general types of maintenance philosophies can be identified, namely corrective, preventive, riskbased and conditionbased maintenance. Nov 30, 2000 for slides, see lecture 20 lecture 24, legal issues powerpoint html lecture 25, management iii. We provided the download links to software engineering notes pdf for b. Software maintenance prediction refers to the study of software maintainability, the modifications in the software system, and the maintenance costs that are required to maintain the software system. The software engineering methods and tools used depend on the type.
Engineering, architecting, design, implementation, testing. The bedrock that supports software engineering is a quality focus. Maintenance introduction and types software engineering lectures hindi english duration. Validation and verification powerpoint html lecture 23, tools for debugging ii for slides, see lecture 20 lecture 24, legal issues powerpoint html lecture 25, management iii. With it, terms to describe specialized types of developers become part of the unofficial industry lingo and show up in job ads and. Very often in practice we use programs with poorly designed structures, poor coding, poor logic, and poor documentation. The modification of a product, after delivery, to correct faults, to improve performance or other attr. Need for software maintenance maintenance to repair software faults changing a system to correct deficiencies in the way meets its requirements. Any glitches and bugs discovered in the software are corrected so that users can use the software and. Managing people powerpoint html lecture 26, risks in software engineering powerpoint html lecture 27, software. Robert glass, writer of the facts and fallacies of software engineering, when it comes to software, 60% costing is for maintenance. Generally, software engineering is extremely dependent on a smooth process in order to prevent bugs and have the most optimal code for running software.