Assignment Path Variables Example

Last modified 11 Jan 2023 15:14 +01:00

To better illustrate meaning of various assignment-related variables let us present an example.

Here, user jack is being assigned a role Pirate. This role induces Sailor. Both Pirate and Sailor have assigned MetaroleCrewMember. This metarole induces MetarolePerson, which induces role Human. Each of these roles provides a construction (C1, C2, …​, C5) via an inducement of corresponding order (1 or 2).

assignments variables

Let us have a look at various variables used when evaluating individual constructions. They can be summarized in the table below.

(Note that C3, C4, and C5 are evaluated twice. So C3P is the evaluation of C3 on the path jack → Pirate → MetaroleCrewMember → C3, while C3S is the evaluation of C3 on the path jack → Pirate → Sailor → MetaroleCrewMember → C3. In an analogous way, there are C4P/C4S and C5P/C5S.)

Variable C1 (on Pirate) C2 (on Sailor) C3P (on M-CrewMember via Pirate) C3S (on M-CrewMember via Sailor) C4P (on M-Person via Pirate) C4S (on M-Person via Sailor) C5P (on Human via Pirate) C5S (on Human via Sailor)

assignment

targetRef = role:Pirate, extension = ship:BlackPearl, weapon:pistol,mouth. The extension values originate in user jack, targetRef originates in the first assignment in the chain. There are no other items, because extensions of all the assignments and roles on the path are empty.

thisAssignment

Pirate→C1

Sailor→C2

MetaroleCrewMember→C3

MetaroleCrewMember→C3

MetarolePerson→C4

MetarolePerson→C4

Human→C5

Human→C5

immediateAssignment

jack→Pirate

Pirate→Sailor

Pirate→MetaroleCrewMember

Sailor→MetaroleCrewMember

MetaroleCrewMember→MetarolePerson

MetaroleCrewMember→MetarolePerson

MetarolePerson→Human

MetarolePerson→Human

focusAssignment

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

source (or containingObject)`
`

Pirate

Sailor

MetaroleCrewMember

MetaroleCrewMember

MetarolePerson

MetarolePerson

Human

Human

immediateRole

null

Pirate

Pirate

Sailor

MetaroleCrewMember

MetaroleCrewMember

MetarolePerson

MetarolePerson

focus (or user)

jack

jack

jack

jack

jack

jack

jack

jack

assignmentPath

jack→P→C1

jack→P→S→C2

jack→P→MCM→C3

jack→P→S→MCM→C3

jack→P→MCM→MP→C4

jack→P→S→MCM→MP→C4

jack→P→MCM→MP→H→C5

jack→P→S→MCM→MP→H→C5

We can also illustrate various variables graphically using e.g. C5S as an example:

assignments variables c5s

Another example could be C4S:

assignments variables c4s

Evaluating conditions

For completeness, let us show here also path variables present when evaluating conditions for individual roles (first table) and for individual assignments/inducements (second table).

Path variables for evaluation of conditions on roles

Variable Pirate Sailor MetaroleCrewMember via Pirate MetaroleCrewMember via Sailor MetarolePerson via Pirate MetarolePerson via Sailor Human via Pirate Human via Sailor

assignment

targetRef = role:Pirate, extension = ship:BlackPearl, weapon:pistol,mouth. The extension values originate in user jack, targetRef originates in the first assignment in the chain. There are no other items, because extensions of all the assignments and roles on the path are empty.

thisAssignment

jack→Pirate

Pirate→Sailor

Pirate→MetaroleCrewMember

Sailor→MetaroleCrewMember

MetaroleCrewMember→MetarolePerson

MetaroleCrewMember→MetarolePerson

MetarolePerson→Human

MetarolePerson→Human

immediateAssignment

null

jack→Pirate

jack→Pirate

Pirate→Sailor

Pirate→MetaroleCrewMember

Sailor→MetaroleCrewMember

MetaroleCrewMember→MetarolePerson

MetaroleCrewMember→MetarolePerson

focusAssignment

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

source

jack

Pirate

Pirate

Sailor

MetaroleCrewMember

MetaroleCrewMember

MetarolePerson

MetarolePerson

immediateRole

null

null

null

Pirate

Pirate

Sailor

MetaroleCrewMember

MetaroleCrewMember

focus (or user)

jack

jack

jack

jack

jack

jack

jack

jack

assignmentPath

jack→P

jack→P→S

jack→P→MCM

jack→P→S→MCM

jack→P→MCM→MP

jack→P→S→MCM→MP

jack→P→MCM→MP→H

jack→P→S→MCM→MP→H

An example for evaluation of condition on Human when going through Sailor role:

assignments variables human s

Path variables for evaluation of conditions on assignments

Variable Pirate→Sailor Pirate→MetaroleCrewMember Sailor→MetaroleCrewMember MCM→MP via Pirate MCM→MP via Sailor MP→Human via Pirate MP→Human via Sailor

assignment

targetRef = role:Pirate, extension = ship:BlackPearl, weapon:pistol,mouth. The extension values originate in user jack, targetRef originates in the first assignment in the chain. There are no other items, because extensions of all the assignments and roles on the path are empty.

thisAssignment

Pirate→Sailor

Pirate→MetaroleCrewMember

Sailor→MetaroleCrewMember

MetaroleCrewMember→MetarolePerson

MetaroleCrewMember→MetarolePerson

MetarolePerson→Human

MetarolePerson→Human

immediateAssignment

jack→Pirate

jack→Pirate

Pirate→Sailor

Pirate→MetaroleCrewMember

Sailor→MetaroleCrewMember

MetaroleCrewMember→MetarolePerson

MetaroleCrewMember→MetarolePerson

focusAssignment

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

jack→Pirate

source

Pirate

Pirate

Sailor

MetaroleCrewMember

MetaroleCrewMember

MetarolePerson

MetarolePerson

immediateRole

null

null

Pirate

Pirate

Sailor

MetaroleCrewMember

MetaroleCrewMember

focus (or user)

jack

jack

jack

jack

jack

jack

jack

assignmentPath

jack→P→S

jack→P→MCM

jack→P→S→MCM

jack→P→MCM→MP

jack→P→S→MCM→MP

jack→P→MCM→MP→H

jack→P→S→MCM→MP→H

An example for evaluation of condition on inducement MetarolePerson→Human when going through Sailor role - it is actually the same situation as above:

assignments variables human s

Abbreviations

Abbreviation Meaning

P

Pirate

S

Sailor

MCM

MetaroleCrewMember

MP

MetarolePerson

H

Human
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