An  Aggregate Entity Block is a self-contained and independant Aggregate Block that is not a Connection Relationship.

An  Aggregate Entity Block can have both Unbounded Members, which enable aggregation of external  Aggregate Entity Blocks, and Bounded Members which can be inter-connected.

Examples:

- Operating Eco-System;

- Action Process;

- Directive;

- Agent.

A  Block Collection is an Entity Element  that is a grouping of Building Blocks.

The grouping of  Building Blocks can be achieved either by reference (Referencing Relationship) or by nesting (Nesting Relationship), in which case the  Block Collection serves as a Lexical Scope.

Example:

- Container Package as a Block Lexical Scope.

- Asset Portfolio as a pure  Block Collection.

A  Block Lexical Scope is a Block Collection that is also a Lexical Scope for the Building Blocks it groups.

A  Block Lexical Scope defines the existence of its Building Blocks through nesting.

A  Bounded Aggregate is an Aggregate Entity Block which hides its internal structure to the outside world by means of formal Borders.

The only way to access a  Bounded Aggregate is through its formal Borders, which ensures the aggregate's internal consistency.

The Borders of a  Bounded Aggregate is determined by the Connection Relationships it can participate to.

Within a  Bounded Aggregate structure, Bounded Members can be linked together through  Connectors.

The nature of  Connectors is given by their associated Connection Relationship.

Examples:

- Action Processes are bounded by their start and end events (see Behavioral Event).

- Applications are bounded by their APIs borders (API Service Point and API Request Point).

 Bounded Individuals are Individuals which have a life cycle, bounded by Temporal Boundings. Because of its composite nature,  Bounded Individual is a sub-type of  Bounded Aggregate.

 Bounded Individuals shall be made distinct from Class of Bounded Individual which they are instance of.

 Bounded Individuals are represented with light orange boxes (see the Meta-Model Legend).

Examples:

. The Eiffel tower (31st March 1889 - ...).

. William Shakespeare in its Early Theatrical Career (1592-1600).

. Confucius (685-758).

. Mount Vesuvius eruption (Aug. 24-25, A.D. 79).

. Oackland digital hospital after its renovation (2022 - ...)

. The execution of the registration process at the Oackland digital hospital, by John Smith, on 17 March 2020.

A  Building Block is an autonomous, Entity Element that contributes to the makeup of other  Building Blocks.

 Building Blocks can be either reusable entities (packaged in Containers) or be local to the Aggregate Block that references them (see Block Lexical Scope and Hierarchical Member).

Examples:

-  Functionality(ies), Business Process(es), Data Entity(ies), Tags, ARE  Building Blocks.

- Process Steps or  Attributes of a data entity ARE NOT  Building Blocks. They are members on an internal structure (see Aggregate Member).

A  Class of Bounded Individual is a Class of Individual which denotes Bounded Individuals that have a proper life cycle, bounded by Temporal Bounding Types.

 Class of Bounded Individual is the powertype of  Bounded Individual. It means that all sub-types of Bounded Individual are instances of  Class of Bounded Individual.

Examples:

- Car, , Application,

- A Process Type (Action Process) such as the registration process used at the Oackland digital hospital during the COVID-19 pandemic.

Counterexamples:

- Project is not a  Class of Bounded Individual because its instances have a spatio-temporal extent. Project is a subtype of Bounded Individual.

- Capability is not a  Class of Bounded Individual. It is a Property.

A  Class of Individual is an Ordered Semantic Class of Ontological Blocks that exist in space and time. It is the powertype of  Individual.

 Class of Individuals are represented as dark orange boxes (see the Meta-Model Legend) .

Examples:

- Red;

- 12 kg;

-  Top Secret (TS) confidentiality.

- Birth,

- Death,

A  Container is a collection of Building Blocks whose existence and meaning are defined by the  Container.

A  Container is both:

1. A Lexical Scope: the meaning and usage of a Building Block is only applicable within the context of the  Container to which it belongs.

2. A universe of discourse: the complete range of Building Blocks that are expressed, assumed, or implied in an architecture domain.

Examples:

- Container Package

- Library

- Enterprise

A  Container Package is a Container which sole purpose is model management.

Examples:  Library, Information Dictionary

Conterexamples: Enterprises or Infrastructure Landscapes are Containers but are not  Container Packages because they have functional purposes that go beyond model management.

An  Individual State is a temporal slice of a Bounded Individual.

Examples:

. The state of the Eiffel tower during the 1900 World Fair, with its improved elevators and electric illuminations (Apr 14, 1900 - Nov 12, 1900).

. William Shakespeare in its early theatrical career (1592-1600).

. Confucius in its early childhood.

. The first Plinian phase of the Mount Vesuvius eruption (18 to 20 hour, Aug. 24 A.D. 79), that projected a column of volcanic debris and hot gases.

. Oackland digital hospital after its renovation (2022 - ...).

A  Meta Family of Class is a  Class of Classes of Element (its members are themselves Class of Elements), typically used to group or organize collections of Class of Elements that share some structural, relational, or definitional property.

In contrast to families of sets, which are sets of sets, a family of classes operates at a higher ontological level-its elements may represent universes, types, or conceptual groupings rather than individual sets.

 Ontological Block is the root ontological foundation that defines the capacity to embody meaning through Semantic Relationships - such as Composition (Whole/Part), Classification or Specialization.

In contrast, Building Blocks like Aggregate Blocks or Containers act as syntactic constructs, They structure or group  Ontological Blocks, but lack inherent semantic properties of their own, serving purely as structural or logistical tools within the framework.

An  Ordered Semantic Class is collection of Ontological Blocks which it classifies according to a chain of powertype relations, with every  Ordered Semantic Class specializing the basic type of the same order and instantiating the one of the order above.

This make  SysFEAT is a higher-order ontology, so  Ordered Semantic Classes may have members that are also  Ordered Semantic Classes ( Class of Classes).

A  Property is an abstract Class of Individual, which purpose is to qualify Bounded Individuals and their classes (Class of Bounded Individual).

Because instances of  Property are Individual Propertys, they do not have proper instances: there are no instances of "red", but there are red Bounded Individuals.

Example:

- 10 degree celcius;

- Ability to cook (a capability);

- Red;

- 12 kg;

-  Top Secret (TS) confidentiality.

- 7/7 availability

A  State Class is a class of the temporal slices of a Class of Bounded Individual. It is the powertype of Individual State.

Examples:

. The lifecyle phases of buildings such as a skycraper: construction phase, operation and maintenance phase, decommissioning phase.

. The lifecycle phases of a person, such as childhood, adulthood, eldery stage.

. The phases of a volcanic eruption:  magma accumulation, plinian phase, eruptive phase, effusive phase, declining phase.

. The lifecyle phases of a hospital such as construction phase, operation and maintenance phase, renovation and expansion phase, decommissioning phase.

An  Unbounded Aggregate is an Aggregate Entity Block that does not have boundaries and, thereby, that cannot participate to Connection Relationships.

Examples:

- Operating Eco-System;

- Directive.

A  Whole Life Individual is a Bounded Individual that is not the temporal slice of any other Bounded Individual.
A  Whole Life Individual includes its past and future.

Examples:

. The Eiffel tower (31st March 1889 - ...).

. William Shakespeare (23 April 1564 - 23 April 1616).

. Confucius (685-758).

. Mount Vesuvius eruption (Aug. 24-25, A.D. 79).

. Oackland digital hospital (1994 - ...).

. The execution of the registration process at the Oackland digital hospital, by John Smith, on 17 March 2020.