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Source  : 79a2f1a
Branch  : main
Author  : Andy Turner <[email protected]>
Time    : 2024-10-12 18:26:43 +0000
Message : Merge pull request #247 from aturner-epcc/aturner-epcc/objective-i229

Improves objective. Closes #229

docker-hub.md

@@ -6,7 +6,7 @@ exercises: 10
 
 ::::::::::::::::::::::::::::::::::::::: objectives
 
-- Explain how the Docker Hub augments Docker use.
+- Understand the importance of container registries such as Docker Hub, quay.io, etc.
 - Explore the Docker Hub webpage for a popular Docker container image.
 - Find the list of tags for a particular Docker container image.
 - Identify the three components of a container image's identifier.

introduction.md

@@ -45,6 +45,17 @@ scientific software (or software in general!) for your research. Then,
 share with your neighbors and try to come up with a list of common gripes or
 challenges.
 
+::::::::::::::::::::::::::::::::::::::::::::::::::
+
+:::::::::::::::::::::::::::::::::::::::::  callout
+
+## What is a software *dependency*?
+
+We will mention software *dependencies* a lot in this section of the workshop
+so it is good to clarify this term up front. A software dependency is a
+relationship between software components where one component relies on the
+other to work properly. For example, if a software application uses a library
+to query a database, the application depends on that library.
 
 ::::::::::::::::::::::::::::::::::::::::::::::::::
 
@@ -66,6 +77,8 @@ or missing piece may stop the whole thing from working or break something that w
 already running. It's no surprise that this situation is sometimes
 informally termed **dependency hell**.
 
+
+
 :::::::::::::::::::::::::::::::::::::::  challenge
 
 ## Software and Science

md5sum.txt

@@ -5,11 +5,11 @@
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