CEO Tech Tips

JULY 25, 2021

M&A mergers and acquisitions typically involve a significant amount of due diligence including what obligations it is assuming, the nature and extent of the seller’s contingent liabilities, problematic contracts, litigation risks, intellectual property issues, and much more.

Technical Review 40

Technical Review Systems Review Software Review Technology 40

Net Objectives

APRIL 3, 2019

When first adopting TDD, developers can run into some roadblocks that seem to indicate that TDD is a difficult process. In truth, some of these problems actually indicate faults in the system architecture.

Systems Review 40

Systems Review TDD System Architecture Architecture 40

Cutter Consortium

JULY 24, 2018

Cutter Consortium’s Technical Due Diligence for Acquisitions ensures an unbiased assessment of the software, software architecture, technology, security, and technology skills of your potential acquisition. Discover the value and SWOTs of your target company’s current-state systems.

Technical Review 52

Technical Review Software Review Systems Review Software Engineering 52

Net Objectives

MARCH 25, 2019

Often a given behavior will change due to a certain condition: sometimes the system will behave one way, sometimes another. We call this kind of behavioral change a “boundary” and it should be specified as such in TDD.

Systems Review 40

Systems Review TDD Examples System 40

Net Objectives

MARCH 12, 2019

As consultants, we are often asked to review the work of others. One of the things we review is the quality of the design of some part of the system. Often the developers understand and agree that these qualities are important, but they are not … Continue reading "“Good” Tests in TDD".

Systems Review 40

Systems Review TDD Testing System 40

Net Objectives

APRIL 5, 2019

TDD, when conducted as a specifying activity, is an aspect of Behavior-Driven Development (BDD). Behavior is what we specify and is what we “drive” into the system using tests. Therefore, when structuring the tests in TDD we can be guided by the language of BDD: Given, When, Then.

Systems Review 40

Systems Review TDD Testing System 40

Net Objectives

FEBRUARY 28, 2019

The type and nature of the tests that you write in TDD helps you to understand how strongly your system is encapsulated. Everything the system must do, and yet might not, needs a test. The more your tests are about … Continue reading "TDD and Encapsulation".

Systems Review 40

Systems Review TDD Testing System 40

Net Objectives

APRIL 4, 2019

This feels like redundancy and makes them wonder if TDD is promoting bad practices. Example: A system that converts Fahrenheit to Celsius. The code would contain something like this: return (F - 32) * 5/9; The test might contain … Continue reading "TDD Replicating Algorithms".

Software Review 40

Software Review Systems Review TDD Testing 40

Net Objectives

MAY 7, 2019

TDD depends on a strong connection between the automation of the test suite and the system itself. The suite should record the specification that is implemented in the system, and the connection allows this to be confirmed at any point. So, if errors creep into the test … Continue reading "Sustainable TDD: Part 3".

Systems Review 40

Systems Review TDD Sustainability Testing 40

The Crazy Programmer

APRIL 14, 2021

Virtual desktops are preinstalled copies of operating systems on the cloud. It helps in isolating the desktop environment from the existing system that is accessible on any device. All of the high-end processing tasks and heavy lifting operating system work is carried out on the cloud and not the existing system.

Cloud 363

Cloud Technical Review Software Review Systems Review 363

Net Objectives

MAY 1, 2019

TDD is typically part of an agile process. This means that we embrace change, that new requirements flow into the team’s work either on a time-boxed pulse, or through some kind of pull system (like Kanban). In TDD, a new requirement always starts out as a new, failing test or “specification.”

Systems Review 40

Systems Review TDD Sustainability Agile 40

Net Objectives

APRIL 23, 2019

TDD often uses unit tests to drive behavior into the system. When these are automated, this can give us clues as to how to make our work in TDD more reusable. Tools like Fit, Specflow, and Cucumber are all designed to parse some non-technical artifact (such … Continue reading "TDD and Test Invariance".

Technical Review 40

Technical Review Systems Review TDD Testing 40

Apiumhub

SEPTEMBER 19, 2018

Last month we talked about TDD example in software development ( part 1 ) and TDD first cycle ( part 2 ). In this new TDD and primitive obsession article, we will focus on removing duplication and reinforcing the constructors of our entities, something key to have a robust system. TDD: primitive obsession.

Software Review 67

Software Review Systems Review TDD Testing 67

Net Objectives

APRIL 17, 2019

In TDD, tests take actions such as Setup, Trigger, and Verify. Each of these pieces must successfully execute in order for the specification to be verified as accurate to the current behavior of the system. For example, If … Continue reading "TDD and Guard Assertions".

Systems Review 40

Systems Review TDD Testing Examples 40

Net Objectives

MARCH 20, 2019

Because TDD is “test” driven development, people tend to think of TDD as “writing tests first.” In fact, TDD is not a testing activity per se. It is the creation of an executable specification prior to the creation of each system element. Because of this … Continue reading "Commonly Missing Tests in TDD".

Systems Review 40

Systems Review TDD Testing Test-Driven Development 40

Henrik Warne

JUNE 19, 2022

I have used randomly generated tests to very good effect before, but always on complete systems (like generating random calls between phones), never as property based tests. This chapter uses the example of converting Roman numerals to integers to show how TDD works. Not all situations benefit from TDD. Test doubles and mocks.

Software Review 229

Software Review Testing Systems Review Technical Review 229

Net Objectives

FEBRUARY 25, 2019

I mentioned earlier that TDD offers qualitative measurements about production code, namely that a large average fixture size can be used to measure relative coupling in a system. The Single Responsibility Principle states that every class in … Continue reading "TDD and the Single Responsibility Principle".

Software Review 40

Software Review Systems Review TDD Testing 40

Net Objectives

MARCH 1, 2019

This means that a “good” design will allow for a new behavior to be added to a system without having to change the existing code, or at least to minimize … Continue reading "TDD and the OCP".

Software Review 40

Software Review Systems Review TDD Software 40

Net Objectives

MARCH 26, 2019

Recently I wrote about the necessity in TDD of specifying both sides of a behavioral boundary, and its epsilon. This is important because we want a complete, detailed record of the critical business rules and other values in the system. It has to do with the … Continue reading "Specifying Boundaries in TDD: Part 2".

Systems Review 40

Systems Review TDD System 40

Net Objectives

MARCH 27, 2019

The term “workflow” in this sense is meant to indicate the way two system elements interact when performing a task. Often these interactions themselves are not exposed outside the system, and so only their resulting behavior should be tested. This is as true in TDD as it is in traditional testing.

Systems Review 40

Systems Review TDD Testing System 40

Xebia

AUGUST 9, 2023

With the industry moving towards end-to-end ML teams to enable them to implement MLOPs practices, it is paramount to look past the model and view the entire system around your machine learning model. The classic article on Hidden Technical Debt in Machine Learning Systems explains how small the model is compared to the system it operates in.

System Design 130

System Design Systems Review System Machine Learning 130

Net Objectives

MAY 21, 2019

It is important that the system behaviors we create as developers are both accurate and precise. The level of precision required … Continue reading "TDD and Accuracy vs. Precision". These are not the same. One can be: Accurate, but not precise: “Pi is a little over three.” Precise, but not accurate: “Pi is 5.393858303895.”

Systems Review 40

Systems Review TDD System Development 40

Net Objectives

APRIL 11, 2019

Tests often establish example values used to compare the behavior of the system with the actual behavior indicated in the requirements.

Systems Review 40

Systems Review TDD Testing Examples 40

Net Objectives

MARCH 5, 2019

One aspect of strong design is that separation is created between the various concerns of the system. This is one area where … Continue reading "TDD and the Separation of Concerns". This adds clarity, promotes re-use, improves cohesion, and in general adds value to the work.

Systems Review 40

Systems Review TDD System 40

Net Objectives

FEBRUARY 19, 2019

Project Managers and Product Owners are sometimes dubious about the development team doing TDD. They are concerned that the team will slow down because they’ve been burdened with additional work, and that developers might “game” the system with bogus tests to satisfy the process.

Systems Review 40

Systems Review TDD Development Project Management 40

Xebia

JULY 19, 2023

Artificial Intelligence (AI) systems are becoming ubiquitous: from self-driving cars to risk assessments to large language models (LLMs). As we depend more on these systems, testing should be a top priority during deployment. Tests prevent surprises To avoid surprises, AI systems should be tested by feeding them real-world-like data.

Artificial Inteligence 130

Artificial Inteligence Testing Systems Review System 130

The Crazy Programmer

OCTOBER 23, 2021

The operating system is the software that enables an ideal environment for all these application software to work effectively. And without using an operating system, it is not possible to use smartphone devices to computer devices efficiently. What is an Operating System? Operating System Characteristics. Image Source.

Operating System 147

Operating System Systems Review System Software Review 147

Let's Grow Leaders

OCTOBER 31, 2022

Speak Up to Get Better Feedback in Your Next Performance Review. A few years ago, I wrote “Avoid These Infuriating Phrases in End-of-Year Feedback” to encourage managers to stop making stupid comments when giving a performance review. One of the easiest ways to tank employee engagement is to screw up an end-of-year review.

Performance 200

Performance Systems Review How To Examples 200

Henrik Warne

JULY 12, 2021

The focus is on how to structure systems to make them easy to understand and work with. The author defines complexity as anything related to the structure of a software system that makes it hard to understand and modify. The goal of software design is to reduce the complexity of the system. What I Liked The Most. Complexity.

Software Review 260

Software Review Systems Review Software Examples 260

Honeycomb

OCTOBER 18, 2022

In this incident review, we’ll cover the outage from September 8th, 2022, where our ingest system went down repeatedly and caused interruptions for over eight hours. Click here to get a detailed version of this review. This seemed to work, but sampling aggressively was impacting our ability to observe the system.

Systems Review 98

Systems Review Software Review Technical Review Engineering 98

Dzone - DevOps

JUNE 22, 2021

Sometimes, an errant keystroke is all it takes to bring critical systems offline. And unlike text messages and email, these systems don’t usually have autocorrect tools to step in and save the day. Ask an SRE to name the most serious threats to reliability, and typos probably won’t feature on the list. But maybe they should.

Systems Review 138

Systems Review System Tools DevOps 138

Xebia

APRIL 5, 2022

Test automation is not a project or a one-off—it is part of the development lifecycle and should be seen as its own system that needs to evolve over time as the requirements and system under test change and mature. Delivery pipelines and source code management systems help—for example, you can gate pull requests on a failing test.

Software Review 130

Software Review Testing Systems Review Technical Review 130

The Crazy Programmer

JULY 21, 2021

Amongst the most pressing issues confronting IT departments, today is system connectivity. Especially when multiple systems and apps need to be managed by a single provider. This means you’ll never have to start from scratch, and your systems will be connected five times faster. With one system, you can obtain both.

Technical Review 162

Technical Review Software Review Systems Review Training 162

The Crazy Programmer

AUGUST 9, 2020

The use of a content management system – CMS – for powering your site is one of the best investments you can make for your digital presence – and for your business. Along with choosing the right CMS, you may need to know why having this system is so important. This includes pieces that are live, in draft mode, or being reviewed.

Systems Review 264

Systems Review System Technical Review Software Review 264

Tenable

SEPTEMBER 15, 2023

Tasked with securing your org’s new AI systems? 1 - Google: The ins and outs of securing AI systems As businesses adopt artificial intelligence (AI) and cybersecurity teams get tasked with protecting these complex new systems, a fundamental question looms: When defending AI systems, what changes and what stays the same?

Open Source 115

Open Source Systems Review System Software Review 115

Honeycomb

SEPTEMBER 1, 2023

In this review, we will cover the incident itself, and then we’ll zoom back out for an analysis of multiple contributing elements, our response, and the aftermath. The most recent flip had fully stopped any remaining writes that kept the system alive. It impacted all user-facing components from 1:40 p.m. UTC to 2:48 p.m.

Systems Review 79

Systems Review Technical Review Software Review Engineering 79