what is the fundamental principles for software engineering

-
•Some fundamental principles apply to all types of software system, irrespective of the development techniques used:

–Systems should be developed using a managed and understood development process. Of course, different processes are used for different types of software.

–Dependability and performance are important for all types of system.

–Understanding and managing the software specification and requirements (what the software should do) are important.

–Where appropriate, you should reuse software that has already been developed rather than write new software.

Comments

Post a Comment

i am running my new blog at Knowledge Sharing (https://ksharing.info). please subscribe my new blog

Popular posts from this blog

Component Based Software Engineering

-
Image
•Main characteristics –Makes intensive use of existing reusable components. –The focus is on integrating the components rather than on creating them from the scratch. •Advantages –Reduces considerably the software to be developed “in-house”. –Allows faster delivery. –In principle, more reliable systems, due to using previously tested components. •Disadvantages –agreement in requirements are needed. –Less control over the system’s evolution •Applicability: –When there is a pool of existing components that could satisfy the requirements of the new product. –Emerging trend: integration of web services from a range of suppliers. You can also view: 1. Boehms Spiral Process Model 2. Rational Unified Process Model 3. Rapid Application Development-RAD 4. Prototyping Process Model 5. Incremental Process Model 6. Component Based Software Engineering 7. Evolutionary Process Development Model 8. Waterfall Process Model 9. Software Process Framework Activity
Read more

What is Non-functional requirements

-
Image
These define system properties and constraints e.g. reliability, response time and storage requirements. Constraints are I/O device capability, system representations, etc. i.e. Deactivate or delete record after 24 hrs Process requirements may also be specified mandating a particular programming language or development method. Non-functional requirements may be more critical than functional requirements. If these are not met, the system may be useless. Types of Nonfunctional requirement Product requirement: Examples The MHC-PMS shall be available to all clinics during normal working hours (Mon–Fri, 0830–17.30). Downtime within normal working hours shall not exceed five seconds in any one day. Organizational requirement:  Examples Users of the MHC-PMS system shall authenticate themselves using their health authority identity card. External requirement:  Examples The system shall implement patient privacy. Non-functional requirements implementation Non-functional requirements may affec
Read more

Software engineering Ethics Issues of Professional Responsibility

-
•Confidentiality –Engineers should normally respect the confidentiality of their employers or clients irrespective of whether or not a formal confidentiality agreement has been signed. •Competence –Engineers should not misrepresent their level of competence. They should not knowingly accept work which is out with their competence. •Intellectual property rights –Engineers should be aware of local laws governing the use of intellectual property such as patents, copyright, etc. They should be careful to ensure that the intellectual property of employers and clients is protected. •Computer misuse –Software engineers should not use their technical skills to misuse other people’s computers. Computer misuse ranges from relatively trivial (game playing on an employer’s machine, say) to extremely serious (dissemination of viruses).
Read more