Questions tagged [terminology]

For questions about clarifications of DevOps terms. Use this tag to ask about unclear or ambiguous terms, and remember to show any research you've found already before asking about a definition.

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105
votes
5answers
158k views

What is an artifactory?

There are quite some questions and answers that mention "artifactory". I wouldn't be surprised if it is somehow related to artifacts. My questions: What is actually an "artifactory" (in the context ...
78
votes
2answers
39k views

What is the definition of "cattle not pets"?

The term "treat your servers like cattle not pets" has proliferated in recent years, particularly when applied to Docker containers and Virtual Machines What does it actually mean?
63
votes
4answers
8k views

What is the difference between SRE and DevOps?

What is the difference between SRE and DevOps? Site Reliability Engineering and Development Operations seem to overlap a lot in detail. How do I know which group is responsible for what, and how do I ...
55
votes
6answers
16k views

What is the difference between Sysadmin and DevOps Engineer?

When applying for a job, usually you can find two types of similar jobs: Sysadmin Engineer and DevOps Engineer. Both of them deal with server configuration and ensure the reliable operation of ...
49
votes
1answer
16k views

What is a "Walking Skeleton"?

One of my agile teams has taken an interesting approach in the early stages of their project. Instead of starting the project with a Sprint 0 where they setup code infrastructure and decide on the ...
47
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5answers
3k views

What is Serverless?

All the cloud providers are marketing their "serverless" solutions. The promise is that serverless is going to replace the way developers are currently develop their software, and operations manage it ...
45
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7answers
5k views

What's the difference between DevOps and Automation?

I see that whenever someone does DevOps, it's mostly about automating things like deployment etc. But where does automation end and DevOps begin?
36
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2answers
15k views

What is an artifact repository?

What is an artifact repository? If it's just a place to store files, can't I just use a source control system?
34
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7answers
4k views

Why shouldn't I try to hire a 'DevOps Engineer'?

The idea of having a DevOps Engineer has become quite popular recently, and it seems appealing to just have a person who can slot in and provide many of the benefits of DevOps, as described in the ...
34
votes
3answers
557 views

Is DevOps compatible with ITIL?

In my career, I have been both a software developer and ITIL practitioner in an operations role. Thus DevOps was a natural progression for me. However, I have always struggled with the highly ...
28
votes
5answers
746 views

Is DevOps restricted to companies with SaaS products?

The practices describing DevOps, such as continuous delivery, automation, etc. are relevant to products that provide continuous service, such as SaaS products. For example, a software development ...
28
votes
5answers
4k views

What are immutable servers?

There are some questions about immutable servers, such as: How to implement the immutable server pattern without loosing the ability to do post-mortems? What role do Configuration Managment tools ...
25
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4answers
1k views

What is a container?

There are some questions about containers, such as: What role do Configuration Managment tools play in immutable infrastructure? Which problems does a container orchestration solve? Simple CI/CD ...
23
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4answers
16k views

What is an artifact (or artefact)?

The question about "What is an artifact repository?" contains an answer with an interesting explanation about the repository part of it. And from reading the entire answer, I am not sure what exactly ...
23
votes
2answers
10k views

What Is SecOps?

First when I heard the word SecOps, I thought of it as a management approach that aims to connect security and operations teams, in much the same way that DevOps unifies developers and operations team....
21
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4answers
2k views

How does continuous integration relate to continuous delivery / deployment?

Here is a quote from the current content of continuous-integration: ... process of merging developer's working code copies to a shared codebase frequently to prevent or minimize integration ...
21
votes
2answers
914 views

What is Value Stream Mapping?

I have heard a lot about Value Stream Mapping and how it can be used to analyse the value stream of manufacturing processes including the process of delivering software. I have never seen it ...
20
votes
6answers
2k views

What could be a valid definition of DevOps to introduce it to a novice?

I've done / created lots of SCM related presentations, and now I'm trying to "upgrade" to a DevOps successor of it. What I always try to do in my presentations, is to come up with an introduction ...
19
votes
2answers
26k views

What is a Platform Engineer?

I've been called many things over my career, most of them polite - more recently the work to build CI/CD pipelines has been termed "Platform Engineer" or "Platform Engineering". The risk of such a ...
19
votes
2answers
1k views

What is a 'Feature Flag Toggle' and when to use them (or not)?

There are some questions about feature flag toggles, such as: How to persuade developers to start using feature flag toggles? How to use feature flag toggles? Questions: What is actually a "feature ...
15
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3answers
1k views

How to use feature flag toggles?

What are the different ways to use feature flag toggles in applications? If you were to explain to a developer the exact things that should be done in order to get from nothing to a full feature-flag-...
15
votes
5answers
15k views

What's the difference between checkin and checkout?

When teaching SCM classes to students that are new to Software Configuration Management, it happens that a question comes up like "What's the difference between checkin and checkout?". And a ...
13
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2answers
1k views

What is "Infrastructure as Code"?

The phrase "Infrastructure as Code" has been mentioned several times in the last two weeks in different contexts. What does it actually mean in a practical sense to have Infrastructure as Code?
12
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2answers
1k views

Which Release Management aspects help explain the difference between Waterfall and Agile?

When explaining DevOps to somebody, it happens that a question comes up like: How does Release Management using the Agile methodology differ from Waterfall? So what kind of criteria can you use to ...
12
votes
2answers
2k views

What is "Push on Green"?

Within Google and other DevOps organisations, they talk about "Push on Green" which I am lead to believe is the practice of continuous delivery based upon a successful run of automated tests, and ...
11
votes
2answers
821 views

What does a "DevOps Transformation" contain?

Some consulting companies are promoting a service called "DevOps Transformation". Multiple big companies are talking about the subject at conferences and meetups around the world. What does such "...
11
votes
2answers
7k views

What is the difference between DevOps engineer Vs DevOps consultant Vs DevOps architect?

What is the difference between DevOps engineer Vs DevOps consultant Vs DevOps architect? Considering Role wise & Salary wise & Seniority wise & job demand wise, etc.
11
votes
2answers
384 views

What are known efforts to establish DevOps ontology model?

Today, for many domains there is a semantic ontology for making domain data machine-readable. There are quite many terms in the DevOps and related domains, often established by vendors but applicable ...
10
votes
2answers
2k views

What is Titus and what issues does it solve?

I read an article from Medium Titled "The Evolution of Container Usage at Netflix" and watched a couple of videos on the topic, but it is unclear to me why Titus (referenced in these) should be used. ...
9
votes
2answers
313 views

What exactly are "Truly reproducible builds"?

What exactly are they? Why are they important, in the domain of Continuous Delivery? Context: I have seen in one of (I guess reddit)'s comments that Truly Reproducible builds are still an under-...
8
votes
1answer
2k views

What is the difference between DevOps and GitOps?

I am hearing nowadays a lot about GitOps. What is the difference between DevOps and GitOps? Is it just the SCM does the build and deploy when there is a commit instead of the CI/CD tool exclusively?
8
votes
2answers
311 views

What is "black box" testing? [closed]

What is "black box" testing and how it is different from ordinary testing? For example black box tests prior to deploying to production. Note: "black box" testing is a common requirement when ...
8
votes
2answers
1k views

Dealing with ambiguity of the terms publish vs. deploy

DevOps terminology sometimes originates in products as introduced by their authors. As a result, there are some standard actions described by ambigous terms. In mixed teams and large heterogeneous ...
8
votes
3answers
1k views

What is Systems Thinking?

The "First Way" in Gene Kim's explanation of DevOps requires "Systems Thinking" https://itrevolution.com/the-three-ways-principles-underpinning-devops/ Where can one learn the ability for "Systems ...
8
votes
2answers
879 views

What is a Notes Day and can it be used in DevOps transformation?

Lately I am hearing about more and more companies adopting the Pixar concept of a Notes Day and I was wondering what exactly is a Notes Day, what would be a good format for such event and mainly if it ...
7
votes
3answers
3k views

Jenkins: What is a build?

I'm coming from Ops and I don't have a heavy software engineering background. In Jenkins, what is a "build" exactly and why is it named such? When I build a shell/powershell script, I'm not really ...
7
votes
2answers
1k views

What is the difference between feature flags and feature toggles (if any)?

Part of an answer to my (meta) question "Rename feature-flags to feature-toggles?" is like so: ... There's could be valid questions about feature flags (formalism, documentation about them, process ...
7
votes
1answer
467 views

How does Vagrant differ from Ansible and Docker?

I understand that Ansible is a Configuration Management (CM) tool for orchestrating, deploying (and continuously upgrading) software and conf via a special YAML format created for that software, and ...
7
votes
1answer
448 views

What are the measures of size and complexity of IT infrastructure

How can I compare different infrastructure in regards to size and complexity. What can I measure and compare e.g. number of nodes, number of servers, architectures etc. How do those measures and ...
7
votes
2answers
3k views

What is the difference between packages and artifacts?

I would like to understand the difference between package and artifact. Also In what context we should use these terms.
7
votes
1answer
900 views

Vendoring - what is it?

In various tools there is the concept of "vendoring". i.e. Ruby's bundle, and Chef's Berkshelf. "vendor" is not a verb and in documentation it's often assumed that I know what it means. Can someone ...
6
votes
3answers
2k views

What is DevOps? [duplicate]

Please bear with me as this might get a bit deep. I’ve been reading though some documentation of a error logging SaaS I’m using in an application I’m building. Quite a few times they gave me the ...
6
votes
2answers
276 views

What is a "mesh"?

In this context and cloud computing, I read about "service mesh" and/or "serverless mesh" but I don't fully understand what it is. Can you explain?
6
votes
2answers
176 views

Is Continuous Delivery the Control Framework for DevOps?

I've been reading Jim Bird's DevOpsSec book, one of the statements in Chapter 4 - Security as Code is as follows: Agile ideas and principles—working software over documentation, frequent delivery, ...
6
votes
2answers
181 views

How to find the constraint in a software development shop?

Let us define a constraint as anything that prevents the system from achieving its goal and then look at the goal of DevOps in an organization. A good definition is "DevOps enables a fast flow of ...
5
votes
3answers
2k views

What is a difference between a Walking Skeleton and an MVP?

I've recently stumbled upon the "Walking skeleton" term and got a bit confused about the terminology. Is it the same or a variation of a Minimum Viable Product, or how does it relate to MVP in ...
5
votes
1answer
121 views

Is DevSecOps indeed a new practice worth a professional term?

Or rather marketing slang? Currently, I am not always sure how to build a consense which words deliver informational value and which are thought to attract customers. So, DevOps would include ...
5
votes
1answer
4k views

What is difference between release and deployment?

What is the basic difference between software release and deploy? What is the relation between software release management and continuous deployment?
5
votes
1answer
207 views

What processes enable software vendor/supplier management in a DevOps way of working?

Within a traditional separate Development and Operations organisations, procedures and processes are put in place to ensure that relationships between software vendors and suppliers are maintained. ...
4
votes
4answers
2k views

Definition of "Done" for DevOps

I've being recently interviewed for a DevOps position. One of the questions I was asked was: What is your definition of "done" in the DevOps context? The question is rather broad, but, as I ...