(CNN) The Nevada State Democratic Party announced new details on changes being made to its presidential caucuses, focused on calculating and reporting results, just nine days before the contest is set to take place.

After dropping an app built by the same company whose "coding errors" caused mass confusion during the Iowa caucuses last week, the Nevada party created a new tool and consulted with the Department of Homeland Security, the Democratic National Committee and other experts to update their reporting system and two-source reporting verification process.

"We understand just how important it is that we get this right and protect the integrity of Nevadans' votes," said Alana Mounce, executive director of the state party, in a memo outlining the details. "We are confident in our backup plans and redundancies."

While the party isn't calling it an app, precinct chairs will use a "caucus calculator" on party-bought iPads to work out viability and delegate results during the caucuses by adding together caucus results and early vote data into the tool. The tool has the formulas needed already built in, the memo says.

The calculator is accessed and used through what the party says is a secure Google form. Experts at Google were consulted, along with DHS and the DNC, to ensure its security.

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