Tolok ukur menyoroti keandalan.

Tolok ukur is a fixed expression meaning benchmark, standard, or yardstick. In this sentence, it is the thing doing the action, so it is the subject.

It is best understood as one vocabulary item, even though it is written as two words.

It is normally written as two words: tolok ukur.

Even so, it functions like a single noun phrase with a set meaning. You should learn it as a unit, much like an English expression such as yardstick or benchmark.

Indonesian usually does not use articles like English the and a/an.

So Tolok ukur menyoroti keandalan could mean:

• The benchmark highlights reliability
• A benchmark highlights reliability

The context tells you which one is intended.

Not by itself. Indonesian often leaves number unspecified unless it matters.

So depending on context, tolok ukur could be understood as:

• a benchmark
• the benchmark
• benchmarks

If the speaker wants to make it explicit, they can add something like satu for one or beberapa for several.

Menyoroti is a verb. It means to highlight, to draw attention to, or literally to shine a light on.

It comes from the base sorot. With the verbal affixes, it becomes menyoroti, an active transitive verb that takes a direct object.

This is due to a common Indonesian affix pattern.

• Base: sorot
• Verb form: menyoroti

The prefix is a form of meN-, and the suffix is -i. With roots beginning in s, the s usually changes in the derived form, which is why you get menyoroti rather than a form that keeps the original beginning unchanged.

For learners, the important point is:

• sorot = base form
• menyoroti = active verb meaning highlight / spotlight / focus on

Keandalan means reliability or dependability.

It is formed from:

• andal = reliable, dependable
• ke- ... -an = a circumfix that often turns a word into an abstract noun

So:

• andal = reliable
• keandalan = reliability

This ke- ... -an pattern is very common in Indonesian for expressing qualities or states.

Yes. This sentence uses the very common Subject - Verb - Object pattern:

• Tolok ukur = subject
• menyoroti = verb
• keandalan = object

So the structure is very close to English The benchmark highlights reliability.

Because menyoroti is a transitive verb, it takes a direct object.

So:

• menyoroti keandalan = highlight reliability

No preposition is needed. In standard Indonesian, adding a preposition there would usually sound unnatural.

Here it is figurative.

Literally, menyoroti can mean to shine a light on something. Figuratively, it often means:

• to highlight
• to emphasize
• to draw attention to
• to scrutinize

In this sentence, the figurative meaning is the natural one.

Yes, it is grammatically complete, but it sounds formal, concise, and a bit abstract.

Because the nouns are broad and technical, it could easily appear in:

• a report
• an academic text
• a presentation
• a heading or summary line

In everyday conversation, speakers would often use a fuller context to make it clearer what benchmark and what kind of reliability they mean.