Code and data driven programming

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Code-drive programming involving control flow uses program code to achieve an effect.

Data-driven programming (sometimes involving data flow) uses data to help achieve an effect.

Here is an example of using an array of characters and indexing into the array to output the character at that position.

Which appears easier?
Which appears more concise?
Which appears more readable?
Which appears to be more scalable (as the number of characters and size of the list grows)?

The example program inputs an integer from 0 to 6 and outputs the three letter abbreviation for that day of the week.

printf("Code driven: Day %d is ",dayPos1);
if (dayPos1 == 0) {
	printf("Sun");
	}

else if (dayPos1 == 1) {
	printf("Mon");
	}

else if (dayPos1 == 2) {
	printf("Tue");
	}

else if (dayPos1 == 3) {
	printf("Wed");
	}

else if (dayPos1 == 4) {
	printf("Thu");
	}

else if (dayPos1 == 5) {
	printf("Fri");
	}

else if (dayPos1 == 6) {
	printf("Sat");
	}
printf(".\n");

const char* const dayList1[] = {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
printf("Data driven: Day %d is %s.",dayPos1,dayList1[dayPos1]);

Here is the C code.

#include <stdio.h>

int main() {
	int dayPos1;
	scanf("%d",&dayPos1);
	// code driven approach
	printf("Code driven: Day %d is ",dayPos1);
	if (dayPos1 == 0) {
		printf("Sun");
		}
	else if (dayPos1 == 1) {
		printf("Mon");
		}
	else if (dayPos1 == 2) {
		printf("Tue");
		}
	else if (dayPos1 == 3) {
		printf("Wed");
		}
	else if (dayPos1 == 4) {
		printf("Thu");
		}
	else if (dayPos1 == 5) {
		printf("Fri");
		}
	else if (dayPos1 == 6) {
		printf("Sat");
		}
	printf(".\n");
	// data driven approach
	const char* const dayList1[] = {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
	printf("Data driven: Day %d is %s.",dayPos1,dayList1[dayPos1]);
	return 0;
	}

Here are some examples of input and output for the above program code.

Here is an example input.

3

For the above example input, here is the expected output.

Code driven: Day 3 is Wed.
Data driven: Day 3 is Wed.

Here is an example input.

5

For the above example input, here is the expected output.

Code driven: Day 5 is Fri.
Data driven: Day 5 is Fri.

Here is an example input.

1

For the above example input, here is the expected output.

Code driven: Day 1 is Mon.
Data driven: Day 1 is Mon.