A Technical I.T./DevOps Blog
Question
In computing, what is the definition of a schema?
Answer / schema disambiguation
Outside of the I.T. realm, Merriam-Webster’s Dictionary (11th Edition, on page 1110) defines schema as “a diagrammatic presentation; broadly: a structured framework or plan: outline.” This definition must have influenced the appropriation of the word to refer to concepts in I.T..
For Kubernetes
“Schemas are the set of JSON files for various Kubernetes versions,
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Question
What does MoRef mean?
Answer
It is a portmanteau of “Managed Object Reference.” It is a data type that comes up in the context of alerts/alarms in vSphere.
(The answer was adapted from page 152 of PowerCLI Cookbook by Sellers.)
“MoRefs are unique identifiers assigned to objects at the time of their creation.” (Taken from page 202 of PowerCLI Cookbook by Sellers.)
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Question
In computing you read about VSS. What does it stand for?
Answer / VSS Disambiguation
VSS can stand for the following:
Volume Shadow copy Service
vSphere Standard Switch
Visual SourceSafe (according to page 386 of Continuous Delivery by Humble and Farley)
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Question
High-cardinality in SQL refers to highly differentiated data for a given column. (Although “relatively unique” is not grammatical, that is one way to say it.) When there are many different possible values for a given column, that is high-cardinality. In the context of monitoring, what is high-cardinality?
Answer
In monitoring like relational databases, cardinality refers to the number of elements in a set (consistent with the mathematical definition https://www.dictionary.com/browse/cardinality).
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Question
In I.T., what does abstract or the act of abstraction mean?
Answer (Disambiguation of abstraction)
Examples
For TCP/IP Networking
The seven layers of the OSI model are abstractions. (This was taken from worlddidac.org.)
For Containerization
We find this quote in Docker Up and Running (by Matthias &
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Continue reading “What Does the Verb To Abstract Mean in Computing?”
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Question
What is feature hiding?
Answer
Feature hiding is the practice of toggling or disabling of a feature. The feature may be part of an application, but the users cannot access it or use it. Sometimes code is released in an imperfect way; sometimes there is insufficient confidence to make the feature visible and accessible, but to remove the feature from a release would require too much work.
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Problem scenario
In computing, you have heard of containers. There are many types. Where can you find a disambiguation of containers?
Answers
For SQL Server
In SQL Server for over 10 years, there have been “Foreach Loop Containers”. It is a built-in control flow for SQL Server Integration Services. To read more see this Microsoft page.
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Question
In I.T. what is pipelinization?
Answer / Disambiguation
The configuration, creation, or execution of a repeatable process that involves a series of stages with a start and finish. Another definition of pipelinization would be making a procedure into a controlled stream (for reproducibility for parallel and independent development or parallel and increased throughput of the original process). A final definition would be adopting a manual or automated process by developing a sequence of substeps for a [batch] job to incrementally pass through.
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Continue reading “What is Pipelinization in Technology/Computing?”