The International Atomic Energy Agency signed a nuclear roadmap with Iran on Tuesday amid international greeting.

The International Atomic Energy Agency signed a nuclear roadmap with Iran on Tuesday in Vienna amid international greeting.

Yukiya Amano, the head of the IAEA, announced the deal in Vienna on Tuesday, just a short time after diplomats acknowledged a sum-up agreement had been made between world powers and Iran.

Vice President Ali Akbar Salehi signed the roadmap on behalf of the Islamic Republic.

The roadmap calls for IAEA, with Iran's cooperation, to make an assessment of issues relating to what is called as possible military dimensions of the Islamic Republic's nuclear program by the end of 2015.

"This is a significant step forward toward clarifying outstanding issues regarding Iran's nuclear program," Amano said.

Iran has always rejected the allegations as based on faulty intelligence provided by its enemies to a gullible and biased IAEA, and a probe has been stalled since last year.

A particular sticking point in the probe has been the IAEA's desire to inspect military sites where these suspicious activities may have taken place such as Parchin.

Amano said the roadmap "sets out a clear sequence of activities over the coming months, including the provision by Iran of explanations regarding outstanding issues. It provides for technical expert meetings, technical measures and discussions, as well as a separate arrangement regarding the issue of (Iranian military base) Parchin."

"This should enable me to issue a report setting out the Agency's final assessment of possible military dimensions to Iran's nuclear program, for the action of the IAEA Board of Governors, by 15 December 2015," he added.