Novel XI is an important and previously underutilised source also with regard to the history of the administration in Illyricum during Justinian's reign. The information about Aquis in this constitution serves not only to recreate the history of this city, but is also a reference point for analysing Procopius of Caesarea's De aedificiis. In Book IV of the work, he contained a vast source material about the building activity in Europe in Late Antiquity, without providing any clues as to the chronology of the conducted works, which he generally attributed to Justinian. This obstructs the reconstruction of the process of restoring the Empire's rule in the territories on the Danube after the great wars which had gone on, with some intervals, from the late 370s to the end of the 480s. During that time, the continuous functioning of many cities was interrupted and frequently it is not clear whether e.g. the centres which reappear in the sources in the 6th century are continuations of the cities which had existed in the same place, or whether they kept the old name but were rebuilt in a different place. Mentions about one city rarely appear in several different accounts, so if such a situation does take place, it should at least enable us to deepen the analysis to some extent and thus to obtain a better understanding of the entire situation in the region. Considering the condition of the sources, the history of the city of Aquis in Dacia Ripensis in Late Antiquity should be treated as completely unique, since several sources mention it. However, rather than advancing the research, this has led to confusion and creation of mutually exclusive hypotheses mainly concerning the city's significance in the administrative system. Findings regarding this centre can be complicated even further if we take the data from the earlier period into account.

Today it is very difficult to find comprehensive and definitive findings concerning the significance and role of Aquis in the Empire's administrative system in Late Antiquity. The surviving written information about this centre from the best-documented period of Justinian's reign has not even been organised.