A particular anomaly's classification is subject to update and modification as research and our understanding of the object, entity, or phenomenon improves.
Primary Classes Edit
These are the most common Object Classes assigned to anomalies, and make up the bulk of the Foundation's database.
Safe-class objects are those anomalies that are either sufficiently understood that they are now completely and reliably contained on a permanent basis or otherwise do not trigger their anomalous effects unless intentionally activated.
Classifying an anomaly as Safe, however, does not mean that handling or activating it does not pose a threat, and personnel are to be reminded that all Special Containment Procedures and safety protocols are to be observed at all times.
Euclid-class objects are anomalies that are either insufficiently understood or inherently unpredictable, such that reliable containment is not always possible, but do not pose sufficient threat to qualify for Keter classification. The vast majority of anomalies cataloged and contained by the Foundation are initially classified as Euclid until they are either sufficiently understood or exhibit sufficient danger to qualify for reclassification.
In particular, any anomaly that exhibits autonomy, sentience and/or sapience is generally classified a Euclid-class entity at minimum, due to the inherent unpredictability of an object that can act or think on its own.
Keter-class objects are anomalies that pose an inherently serious threat to the safety of Foundation personnel and the rest of mankind and either require extensive and complex procedures to contain or cannot be fully contained by the Foundation's current technology and knowledge.
These anomalies are generally considered the most dangerous ones in Foundation containment, and all research efforts are directed towards enabling more reliable containment of such anomalies or, as a last resort, the timely neutralization or destruction of its anomalous effects.
Secondary Classes Edit
The following Object Classes are sub-classes that supplement the object's primary (or former) classification.
Neutralized anomalies are those that are no longer anomalous, either through having been intentionally or accidentally destroyed, disabled, or otherwise no longer function or exhibit anomalous effects.
The documentation for Neutralized anomalies is archived for posterity in case the anomaly regains its anomalous properties or otherwise recurs in the future.
Explained anomalies are those that are completely and fully understood to the point where their effects are now explainable by mainstream science, have been debunked as a false or mistaken classification, or are so widespread and publicly disseminated such that containment is no longer possible.
Esoteric Classes Edit
The following Object Classes fall outside of the purview of standard classification.