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This page has several charts that depict trends in publication metrics for *ACM Transactions on Database Systems* (*TODS*).

- The turnaround time chart plots the turnaround time for recent submissions. The remaining charts plot a metric over the entire history of
*TODS*. - The article length chart shows the average article length per volume (there is one volume per year, published in quarterly issues). The length of the longest and shortest articles within a volume are also plotted.
- The number of articles chart shows the total number of articles per volume.
- The average end-to-end time chart plots the average end-to-end time for articles within a volume. The end-to-end time is the duration from the initial submission to the on paper printing of an article in
*TODS*.

The chart shown below plots the turnaround time for submissions to *ACM Transactions on Database Systems* (*TODS*).

The Y-axis represents the time, in months. The X-axis shows the month in which a paper was submitted to TODS for an editorial decision. Data collection began in July, 2001 and continues to the current time. The *turnaround time* is roughly defined as the interval of time between when the manuscript was received and when the editorial decision was sent. The chart plots four statistics.

- The
**Committed Maximum Turnaround Time**is the boundary that the Editorial Board is committed to not exceed, for any submission. For papers submitted prior to January 2004, the Editorial Board committed to providing an editorial decision within 6 months. For papers submitted in or after January 2004, the commitment was strengthened to providing an editorial decision within 5 months. (The other lines, unlike this line, are based on the turnaround times of submissions.) - The
**Maximum Turnaround Time**is the maximum or peak turnaround time for submissions in the indicated month. Each circle represents a single, unusually slow paper submitted during the indicated month. For all the papers submitted in 6/16, the longest turnaround time was 4.9 months. - The
**Average Turnaround Time (external reviews only)**is a moving average of the turnaround time for papers submitted in the indicated month. This includes only submissions that went out to external reviewers, and specifically excludes desk accepts and rejects. To smooth monthly variations, the average is a moving average of the entire previous year's submissions. Hence, each square represents the dozens of papers submitted in the year up to and including the indicated month. The value for 6/16, 3.5 months, is the average turnaround time for external reviews of all the papers submitted between (inclusive) 7/15 and 6/16. - The
**Average Turnaround Time**is a moving average of the turnaround time for papers submitted in the indicated month. To smooth monthly variations, the moving average includes all of the submissions for the previous year, as with the pink line. Also, as with the pink line, each diamond represents dozens of papers. The value for 6/16, 3.2 months, is the average turnaround time for for all of the papers submitted between (inclusive) 7/15 and 6/16.

Note that a data point for a particular month implies that an editorial decision for all of the submissions through that month has been made. Also note that prior to 6/02, the months shown did not yet have twelve months of history since data has been collected only since 7/01.

The chart shown below plots the article length in pages for each volume of *TODS*.

- The
**Longest**is the length of the longest article in the volume. The longest article published in 2012 was 59 pages. - The
**Average**is a moving average of the length of an article for papers appearing in the indicated volume. Each data point represents many articles. The articles published in 2012 averaged 36 pages. - The
**Shortest**is the length of the shortest article in the volume. The shortest article published in 2012 was 22 pages.

The chart below shows the total number of articles per volume. 31 articles were published in 2012.

The end-to-end time is the duration from the initial submission to the paper printing of an article in *TODS*. The average end-to-end time per article is plotted in the chart given below. In 2012, the end-to-end time was 15 months.