Source of the SDLC phases we use?

[richelbilderbeek]

I would like to follow an official naming scheme of the SDLC phases.

Our menu at https://uppmax.github.io/programming_formalisms/ follows these steps:

• Planning
• Design
• Development
• Testing
• Deployment

However, when I look for images for the SDLC phases, the first image I get is this:

Looking at https://github.com/UPPMAX/programming_formalisms/tree/main/docs/development_design#sdlc:

I could not find the source behind neither of these images.

Is there a references that we can refer to, for the SDLC life cycle, and use that terminology (with/out simplification of it)?

I will assign @LarsEklund as he is the SDLC teacher 👍

[richelbilderbeek]

And as I know @bclaremar uses the SDLC, maybe he knows too ...?

[bclaremar]

I'll use the one you think is best. But they show the same with deploy/maintenance and analysis/requirements merged in the 5-stepped image.

I guess @LarsEklund knows the sources and can decide.
Or do they show different sizes of the project?

[richelbilderbeek]

Clear :-) . Let's ask @LarsEklund then 👍

[LarsEklund]

https://www.esds.co.in/blog/introduction-to-software-development-life-cycle-sdlc-phases-models/ Is the reference for this particuar image, but I am looking inn to harmonize bridge with other as there are many of them the standard does not specify normative names or concepts for the stages section 5.4 ( Systems and software engineering – Software life cycle
processes 12207:2017)

[richelbilderbeek]

Hmm, wonder where they got that image from... did they make it up ...?

[LarsEklund]

Its a common nomenclature and phases for iterative development the color scheme and style look fairly standard.
But it digging a bit more can be intresting.

[richelbilderbeek]

If only there was a reference to the literature ... 😇

[richelbilderbeek]

Here I will be the first to give a naming scheme of the SDLC with a reference. From [Perry, 2000], pages 148-149:

• Requirements
• Design
• Program
• Test
• Installation
• Maintain

This is quite different of the made-up (?) one we use now and I do prefer that one.

Reference

• [Perry, 2000] Perry, William E. "Effective Methods for Software Testing Second Edition." (2000).

[bclaremar]

I'll use the list in my intro parts and give the reference