Past participle verb as adjective vs passive sentence?

Question

I'm confused with these two sentences:

• Im Schaufenster sind Winterschuhe ausgestellt # past participle verb as adjective

• Im Schaufenster werden Winterschuhe ausgestellt # passive sentence

Do these sentences have the same meaning?

Answer 1

The two sentences have different meanings and highlight the Zustandpassiv (focus on state after an action¹) and Vorgangspassiv (focus on an action¹) forms of the passive. There is a previous post that goes into this topic. To summarise:

Im Schaufenster sind Winterschuhe ausgestellt.

This is the Zustandpassiv form of the passive in the present tense.
Focus on state after an action.

Focus on state.. = The winter shoes are in a state of exhibition in the display window.
..after an action = After the shop keeper physically setting up the winter shoes as an exhibition.

Im Schaufenster werden Winterschuhe ausgestellt.

This is the Vorgangspassiv form of the passive in the present tense.
Focus on an action.

Focus on an action = The winter shoes are in the act / process of being exhibited in the display window. (The shop keeper is setting up the winter shoes for exhibition.)

Here are a few online sources that go into the details of the passive:

1. The Passive Voice (das Passiv) - German Studies, Dartmouth College
2. Aktiv und Passiv im Deutschen - de.wikipedia
3. The Three(?) German Passive Past Tenses - German Stack Exchange