The classical waterfall model is idealistic and assumes that no defect is introduced during any development activity. However, in practice, defects are introduced in almost every phase of the life cycle, and defects usually get detected much later in the life cycle. For example, a design defect might go unnoticed till the coding or testing phase. […]

SDLC – Classical Waterfall Model is the theoretical software development life cycle model, starts from feasibility study, and end to maintenance.

The software development life cycle (SDLC) model is a description and diagrammatic model of the software life cycle. Its goal is to identify all the activities undertaken during product development, establish a precedence ordering among the different activities, and divide it into different phases. A more general software life cycle model is depicted as follows:

Software problems or crises still exist, and the success rate of IT projects is still questionable. The Standish Group Chaos Report found that only 29% of IT project implementations are successful, and 52% are considered challenged, which means there would be some crisis like project delivery delay, cost escalation, poor quality outcome, etc., and 19% are considered utter failures.

To understand Software Engineering, we should first understand, What it is Engineering? Understanding of Engineering Engineering is the application of Science, Tools, and Methods to find a cost-effective solution to the given problem. Relation between Software & Engineering Software engineering means the use of engineering approaches to develop software. It is a systematic collection of past experiences on techniques learned, the methodology

In the early’s 60, there were no Software Engineering Processes and Guidelines such as SDLC. They were following the Exploratory Software Development Process, also called build and fix style. It only focuses on detecting errors at the testing phase and quickly fixes them, and does the same repeatedly until the time all the errors are

Software crisis is a term used in Computer Science in the early’s 60, for the difficulty of writing useful and efficient computer programs at the required time. It was due to using the same workforce, same methods, and the same tools even though rapidly increasing in software demand, complexity, and challenges. What are the symptoms of