Extended answer for ways deliver a software (bregman-arie#121)

README.md

@@ -196,9 +196,10 @@ which follows the immutable infrastructure paradigm.
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 <summary>What ways are you familiar with to deliver a software? What are the advantages and disadvantages of each method?</summary><br><b>
 
-  * Archive - collect all your app files into one archive (e.g. tar) and deliver it to the user.
-  * Package - depends on the OS, you can use your OS package format (e.g. in RHEL/Fefodra it's RPM) to deliver your software with a way to install, uninstall and update it using the standard packager commands
-  * Images - Either VM or container images where your package is included with everything it needs in order to run successfully.
+  * Source - Maintain build script within version control system so that user can build your app after cloning repository. Advantage: User can quickly checkout different versions of application. Disadvantage: requires build tools installed on users machine.
+  * Archive - collect all your app files into one archive (e.g. tar) and deliver it to the user. Advantage: Only tool needed is an unarchiver. Disadvantage: Requires repeating the same procedure when updating, not good if there are a lot of dependencies.
+  * Package - depends on the OS, you can use your OS package format (e.g. in RHEL/Fefodra it's RPM) to deliver your software with a way to install, uninstall and update it using the standard packager commands. Advantages: Package manager takes care of support for installation, uninstallation, updating and dependency management. Disadvantage: Requires managing package repository.
+  * Images - Either VM or container images where your package is included with everything it needs in order to run successfully. Advantage: everything is preinstalled, it has high degree of environment isolation. Disadvantage: Requires knowledge of building and optimizing images.
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