Evolution of Data Architectures The evolution of data architectures has been driven by the increasing volume, variety, and velocity of data in today’s digital age. Over the years, from traditional relational databases to distributed computing, NoSQL databases, cloud computing, and real-time processing, data architectures have continuously evolved to meet the demands of modern data-driven organizations. This write-up aims to provide an overview of the data architecture evolution. Relational Databases In the 1980s and 1990s, relational databases and SQL language became the standard storage technology for enterprise applications.

Data sharing Data sharing is the practice of making data resources available between entities, such as organizations, applications, or individuals, while preserving data integrity. Sharing data facilitates collaboration and information exchange between different parties, enabling them to access and utilize data for various purposes. Benefits of data sharing Data sharing offers numerous benefits, including enhanced collaboration, innovation, efficiency, and decision-making. Sharing data enables new business opportunities and the evolution of the data-driven business model.

Non-functional requirements There are two categories of requirements - functional and non-functional. Let’s say we are building an e-commerce web application - the application parts that users interact with - the products page, the shopping cart, and the payment section are functional requirements. In contrast, non-tangible aspects such as how fast the application responds to users’ requests or how secure the application is are non-functional requirements. As the functional requirements are part of the business requirements, they are tracked and developed as features from the earlier stage of the project.

SDLC approaches To successfully build a software project, development teams must choose a software development methodology that works best for the project on-hand. This article overviews some of the popular SDLC approaches. Waterfall development method The Waterfall development methodology is one of the traditional software development methods. This method works well for smaller well-defined projects. The SDLC stages - requirements gathering, analysis and design, development, testing, deployment, and maintenance are performed sequentially in the waterfall development method, meaning the prior stage has to finish before the project moves on to the next step in the development life cycle.

Stages of SDLC Software Development Life Cycle (SDLC) is a set of activities that typically are performed during the development of software. This article highlights some of the critical activities and the best practices in each stage of the SDLC. The below diagram depicts the various stages of SDLC. Stages of SDLC Feasibility Analysis The feasibility stage identifies whether the planned software development idea is financially worthwhile and technically feasible.

What are Architecture Decision Records (ADRs)? Architecture Decision Records (ADRs) are the documents used to record the reasoning behind certain design decisions in projects for future reference. ADRs help understand the current state of the application’s architecture and infrastructure choices, facilitating future design decisions. ADRs are typically created in the markdown format and maintained in the version control like the rest of the application codebase. ADRs can be hosted in the application’s wiki section, making it accessible to business stakeholders.

What are unit tests? A unit is a small piece of code - a method or a function in a Python class or module that needs to be tested. A unit test is an automated test written to verify the functionality of a small piece of code. Unit tests try to verify the functionality of the code by supplying different inputs and checking to see whether the execution of the code results in expected outputs.

What is Poetry? Poetry is a Python dependency management and packaging tool. Poetry offers a lock file for dependency management which helps pin the exact version of libraries the project needs so the correct library stack is used wherever the project is installed. Poetry has a system requirement of Python 3.7+. How is it different from the PIP tool? Poetry is built on top of another popular Python dependency management tool - PIP and extends PIP’s feature set.

What are low-code platforms? Low-code is a software development approach where application developers use drag-and-drop easy-to-use interfaces to develop applications. These platforms come with an IDE containing code validation. This enables citizen developers (developers without any programming background) to create custom business applications to suit their needs. Why use low-code platforms? Here are some of the benefits of low-code platforms: Low-code platforms enable rapid application development with a web-based visual interface.