der Rahmen
frame
An edging for a picture, window, or door that provides stability and often also decoration.
Das Foto sieht in dem silbernen Rahmen sehr schön aus.
The photo looks very nice in the silver frame.

frame
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frame
An edging for a picture, window, or door that provides stability and often also decoration.
Das Foto sieht in dem silbernen Rahmen sehr schön aus.
The photo looks very nice in the silver frame.

You can recognize the figurative meaning of 'Rahmen' (framework/setting) by the fact that it refers to abstract things. If the sentence is about a picture or window, the literal frame is meant. If it is about a project, celebration, or budget, the figurative context is meant.
Die Geburtstagsfeier fand nur in kleinem Rahmen statt.
The birthday party took place only in a small setting.
In its abstract meaning, 'Rahmen' (framework/setting) is often used with certain adjectives to describe the context. Common combinations are 'der finanzielle Rahmen' (the financial framework), 'der rechtliche Rahmen' (the legal framework), or 'ein feierlicher Rahmen' (a festive setting).
Die gesetzlichen Rahmenbedingungen sind sehr streng.
The legal framework conditions are very strict.
The expression 'im Rahmen von' (as part of / during) is a fixed prepositional phrase that means 'as part of' or 'during'. 'Im Rahmen von' is always followed by the dative.
Im Rahmen der Konferenz wurden viele interessante Vorträge gehalten.
As part of the conference, many interesting talks were held.
'Den Rahmen sprengen' (to exceed the limits) is a fixed idiom. It means that a planned limit (e.g. time, money, scope) is exceeded. The subject is the thing that is too much.
Eine weitere Diskussion würde jetzt den zeitlichen Rahmen sprengen.
Another discussion would exceed the time limit now.
within / inside
'innerhalb' and 'im Rahmen von' can both mean that something stays within certain limits. 'innerhalb' is a preposition and works well with clear spatial or time limits: 'innerhalb einer Woche' (within a week), 'innerhalb der Stadt' (within the city). Here, 'der Rahmen' does not mean the picture frame, but the conditions, scope, or context. The phrase 'im Rahmen von' is often used with events, projects, or rules: 'im Rahmen eines Kurses' (as part of a course). They can be confused because both express a limit. 'innerhalb' is more direct for time and place; 'im Rahmen von' sounds more natural when something is part of a larger plan or program.

Im Rahmen des Projekts besucht die Klasse ein kleines Museum.
As part of the project, the class visits a small museum.
Die Rechnung muss innerhalb von vierzehn Tagen bezahlt werden.
The invoice must be paid within fourteen days.