Phase-entry and phase-exit criteria of each phase |life cycle model | software engineering

Phase-entry and phase-exit criteria of each phase

At the starting of the feasibility study, project managers or team leaders try to understand what is the actual problem by visiting the client side. At the end of that phase they pick the best solution and determine whether the solution is feasible financially and technically.

At the starting of requirements analysis and specification phase the required data is collected. After that requirement specification is carried out. Finally,

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Posted in Feasibility Study, Life cycle Phase-entry, notes of software engineering, phase-exit criteria, software engineer, Types of software life cycle models

phase of waterfall model |software engineering

Different phases of the classical waterfall model

The classical waterfall model is intuitively the most obvious way to develop software. Though the classical waterfall model is elegant and intuitively obvious, it is not a practical model in the sense that it can not be used in actual software development projects. Thus, this model can be considered to be a theoretical way of developing software. But all other life cycle models are essentially derived from the classical waterfall model.

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Posted in ƒ Maintenance, ƒClassical Waterfall Model, Coding and Unit Testing, Design, Feasibility Study, notes of software engineering, phase of waterfall model, software engineer

Types of software life cycle models | software engineering

Different software life cycle models

Many life cycle models have been proposed so far. Each of them has some advantages as well as some disadvantages. A few important and commonly used life cycle models are as follows:

• ƒClassical Waterfall Model
• ƒIterative Waterfall Model

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Posted in ƒClassical Waterfall Model, ƒEvolutionary Model, ƒIterative Waterfall Model, notes of software engineering, ƒPrototyping Model, software engineer, ƒSpiral Model, Types of software life cycle models

need for a software life cycle model |software engineering

The need for a software life cycle model

The development team must identify a suitable life cycle model for the particular project and then adhere to it. Without using of a particular life cycle model the development of a software product would not be in a systematic and disciplined manner. 

When a software product is being developed by a team there must be a clear understanding among team members about when and what to do. Otherwise it would lead to chaos and project failure.

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Posted in Basics of Software Life Cycle, Life cycle model, need for a software life cycle model, software developers, software engineer, software engineers

Basics of Software Life Cycle | software engineering

Life cycle model

A software life cycle model (also called process model) is a descriptive and diagrammatic representation of the software life cycle.
A life cycle model represents all the activities required to make a software product transit through its life cycle phases. It also captures the order in which these activities are to be undertaken.

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Posted in Basics of Software Life Cycle, engineering software, Life cycle model, software developers, software engineer

Evolution of software design techniques | software engineering

Evolution of software design techniques .

During the 1950s, most programs were being written in assembly language. These programs were limited to about a few hundreds of lines of assembly code, i.e. were very small in size. Every programmer developed programs in his own individual style - based on his intuition. This type of programming was called Exploratory Programming.

The next significant development which occurred during early 1960s in the area computer programming was the high-level language programming.

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Posted in Evolution of software, Evolution of software design techniques, notes of software engineering, software developers, software engineer

advantages of structured programming | software engineering

Important advantages of structured programming.

• Structured programs are easier to read and understand.
•  Structured programs are easier to maintain.

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Posted in advantages of structured programming, engineering software, notes of software engineering, Scope and necessity of software engineering degree online, software engineer, structured programing

Scope and necessity of software engineering

Scope and necessity:-

  Software engineering is an engineering approach for software development. we can alternatively view it as a systematic collection of past experience. The experience is arranged in the form of methodologies and guidelines. A small can be written without using software engineering principles. But if one  wants to develop a large software product, then software engineering principles   are indispensable to achieve a good quality software cost effectively. These can be elaborated with the help of a building construction analogy

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Posted in engineering software, necessity, notes of software engineering, Scope, Scope and necessity of software engineering degree online, software developers, software engineer, software engineers