Database views for Rails performance optimization

Rails Framework is one of the greatest supporters for Rapid Application Development (RAD) which tends to abstract and simplify the web architecture so that Rails abstracts away the database through the Active Record which is the Object-relational mapping (ORM) for rails.

The Active Record is the layer of the system responsible for representing business data and logic. Active Record facilitates the creation and use of business objects whose data requires persistent storage to a database.

So, It helps in a way to manage all relations consistency and mapping in the class model without the need to write SQL statement to retrieve any data or the usage of CRUD (create, read, update, and delete) methods in general. Read more

Software Scope vs. Requirement specifications

Did you face any situation where you have been confused between software scope and it’s requirements? If YES, I think you are not alone, There are a lot of misunderstanding in software engineering practices between software scope and its requirement specifications. Most of the time, the software project missed the scope and fall in scope creep dilemma without any notice, and without the alignment with the software scope which turns the project and software to be unsuccessful. Read more

The best SDLC model

I received a lot of emails and comments regarding the best software development life cycle model. So, I had to write my opinion about that.

Actually, I think there is nothing called the best in absolute general, the best for me maybe not the best for you at this moment. Similarly, there is nothing called the best SDLC model in absolute general, you need to decide which one you need to use according to the software project context and what product or software you are developing, what about your competitors? And what are the team capabilities you have? Read more

Architectural Design Decisions

There is no doubt how the architecture is important to shape the solution and define its characteristics in the different architecture domains, and how this solution will be adaptable and dynamic to absorb new business needs and handle different stakeholders’ concerns.

In most architecture development processes, different decisions are taken in the different architecture domains. Architects may make different decisions, such as choosing a specific component, in the conceptual architecture and follow a specific architecture pattern.

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Quality Function Deployment

Introduction

Quality Function Deployment was developed by Yoji Akao in Japan in 1966. By 1972 the power of the approach had been well demonstrated at the Mitsubishi Heavy Industries Kobe Shipyard [1]and in 1978 the first book on the subject was published in Japanese and then later translated into English in 1994. [2]

The QFD methodology can be used for both tangible products and non-tangible services, including manufactured goods, service industry, software products, IT projects, business process development, government, healthcare, environmental initiatives, and many other applications.

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