CS504 Software Engineering I: Software engineering can be defined as the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software. Software engineering focuses on all aspects related to software production. It includes activities such as requirements analysis, design, implementation (commonly referred to as coding), testing, documentation, etc. Read more Object-oriented programming
The activities are carried out by very talented engineers in different software development environments across different industries/organizations. Understanding Software engineering phases: The below diagram illustrates 4 main phases in software engineering namely: Requirements analysis; Design; Implementation; Testing & Maintenance.
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The software life cycle:
Software engineering is a process—the software life cycle. Think of it as a roadmap, or recipe, for building a piece of software. This process (also known as software development life cycle, or SDLC) outlines each phase in detail.
The first phase of software development focuses on gathering together requirements for what you want your software to do. This involves brainstorming about every feature you’d like your product to have, jotting down rough ideas, discussing them with everyone who will be using your app or contributing to its design, and then organizing them into a formal list that everyone can refer to to back to throughout development.
Keep in mind that requirements don’t just involve design—they also cover security considerations, ease-of-use/accessibility parameters, system management features, financial standards (including budget), time frames for completion…the list goes on.
CS504 Software Engineering I-Software Design:
In terms of phases, software design typically refers to the early-stage planning of a program. This phase includes brainstorming ideas for what your program will do and how it will work, drawing sketches or diagrams to illustrate your ideas, developing detailed specifications of how you plan to create your program, and outlining what you’ll need to build it (and when).
While not always formally defined by its own stage, much of software design happens before programming begins. Depending on the size and complexity of a program, there can be multiple stages in which software design occurs. For example, systems with many parts may need separate design stages for each subsystem as well as an overall system design stage.
Testing, in software engineering, is a process to evaluate a software product. In quality control, testing usually refers to operational testing, for example, functional and non-functional testing. It may also refer to alpha and beta testing of released versions (also called release candidates), especially when elaborate test plans or complex test procedures are employed.
Test methods include static analysis, dynamic analysis (e.g., load/performance testing), source code analysis (e.g., fuzzing), oracle tests, design coverage testing; mechanical execution tools such as test automation; or interactive proof tests such as review (by inspection) or walkthroughs. A wide variety of commercial and open-source tools are available for these purposes.
Implementing the solution:
you’ve put together a plan, had it approved by key stakeholders, and now it’s time to start writing code. Here are three steps that can help you get going with your new app. 1) Write a User Story: First things first: come up with a user story. What do you want your users to be able to do? Make sure they’re measurable in some way—for example, if you want users to be able to change their password via SMS, how many times will they be able to do so in a day? To make them even more specific: How long should it take for them to receive an email confirmation that their password has been changed?