Tech Notes

What is DevOps? "DevOps is the combination of cultural philosophies, practices, and tools that increase an organization’s ability to deliver applications and services at high velocity. This speed enables organizations to better serve their customers and compete more effectively in the market. DevOps moves the focus from development to delivery—a subtle but important distinction." What is DevOps? In a simpler term, DevOps is a ‘Soch’ (a philosophy) which encourages frequent feedbacks from customers and accordingly make changes to plan, design or deliverables. It discourages HiPPOs (Highest Paid Person’s Opinion) culture in the company. For frequent feedbacks, release should be available to customers frequently in the production environment. This implies, goal of DevOps is to minimize time elapsed from ‘accepta

The healthcare industry, or medical industry, is a sector that provides goods and services to treat patients with curative, preventive, rehabilitative or palliative care. This industry comprises of different players including hospitals, doctors, nursing homes, clinics, diagnostic laboratories, pharmacies, medical device manufacturers, and other components of the health care system. It is one of the fastest growing industries in the world. It is important to be aware of different business processes/functions involved in this industry before making a career (e.g. software testing practitioner in healthcare) into it. Listed below are the key business functions associated with this industry (Healthcare Providers). Each business functions might have a separate (testing) challenge to solve but that will be discussed later a

In any agile program, it is important to track both business and development progress metrics. Agile metrics helps a team to better understand their development process and also releasing quality software easier and faster. There is a big debate on the usage of some metrics and there are concerns of using it in teams. Usually, usage of metrics is guided by three rules - When a measure becomes a target, it ceases to be a good measure ( Goodhart's Law ) Measures tend to be corrupted/gamed when used for target setting ( Campbell's Law ) Monitoring a metric may subtly influence people to maximize that measure ( The Observer Effect ) Below are some popular key agile metrics at the sprint level as the sprint progresses. Pre Sprint Execution Business Value A value given to user story by

What & Why of TiP "Testing in production (TiP) is a set of software testing methodologies that utilizes real users and production environments in a way that both leverages the diversity of production, while mitigating risks to end users. By leveraging the diversity of production we are able to exercise code paths and use cases that we were unable to achieve in our test lab, or did not anticipate in our test planning" A to Z Testing in Production: TiP Methodologies, Techniques, and Examples "In today’s world, testing in production is not only important, but also critical to ensure complex applications work as we expect them to. Particularly with the move to devops and continuous delivery, testing in production has become a core part of testing software" An Introduction to Testing in Production TiP Approaches TiP is a growing

Transformation from Waterfall to Agile methodology is almost over. Most of the companies are bracing Agile methodology for their release management. Some have perfected and others are catching up. Few have moved forward and took Agile to the next steps following approach of Continuous Delivery / Continuous Deployment. All these changes are suggesting a clear pattern where end users expectations are being valued and served quickly with quality delivery. Days might not be very far, when users can track delivery of their favorite features or changes similar to items being tracked via FedEx (or any other courier service) :). Does it suggest that there won’t be any place for manual testing in future? In this blog, we will try to explore this answer. Before we delve into details, it important to understand the difference between Continuous Delivery & Continuous Deployment. In Continuous Delivery, decision of releasing to production is manual and release can be delaye

What is Docker Container? "A container image is a lightweight, stand-alone, executable package of a piece of software that includes everything needed to run it: code, runtime, system tools, system libraries, settings. Available for both Linux and Windows based apps, containerized software will always run the same, regardless of the environment." What is Container? What is the difference between a Virtual Machine and a Container? "VMs and Containers differ on quite a few dimensions, but primarily because containers provide a way to virtualize an OS in order for multiple workloads to run on a single OS instance, whereas with VMs, the hardware is being virtualized to run multiple OS instances. Containers’ speed, agility and portability make them yet another tool to help streamline software development." Docker containers vs. virtual machines: What’s the difference? Hidden benefits of Docker / Container for QA Quite a few companies started de

"The most powerful tool we have as developers is automation." – Scott Hanselman In a simpler term, DevOps is a ‘Soch’ (a philosophy) which encourages frequent feedbacks from customers and accordingly make changes to plan, design or deliverables. It discourages HiPPOs (Highest Paid Person’s Opinion) culture in the company. For frequent feedbacks, release should be available to customers frequently in the production environment. This implies, goal of DevOps is to minimize time elapsed from ‘acceptance of change request’ to ‘availability of quality code to customers’. Companies can achieve nirvana in DevOps by automating everything in their delivery process. But DevOps is not all about automation, some companies can minimize the deployment time by just changing the culture (e.g. removing red tapes during handover of work to different teams, a concept of Go-NoGo manual approval). What is DevOps? DevOps is the combination of cultu