Difference between revisions of "Facet Based Resource Model"
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Revision as of 14:05, 25 July 2016
Basic Concepts
- Two typologies of entities are envisaged:
- Resources, i.e. entities representing a description of "thing" to be managed;
- Every Resource is characterised by a number of Facets.
- Facets, i.e. entities contributing to "build" a description of a Resource. Every facet, once attached to a Resource profile captures a certain aspect / characterization of the resource;
- Every facet is characterised by a number of properties;
- Resources, i.e. entities representing a description of "thing" to be managed;
- Two typologies of relations are envisaged:
- isRelatedTo, i.e. a relation linking any two Resources.
- consistsOf, i.e. a relation connecting each Resource with one of the Facets characterizing it;
- Entities and relations can be specialized.
- A number of specializations are identified below. Such specializations are managed by the gCube Core services, i.e. Core services builds upon these specialization to realize its management tasks;
- Other specializations can be defined by clients, the system make it possible to store these additional typologies of relations and facets and to discover them.
- On relations:
- Any relation has a direction, i.e. a "source" (out bound of the relation) and a "target" (in bound of the relation). Anyway the relation can be also navigated in the opposite direction;
- It is not permitted to define a Relation having a Facet as "source". In other words:
- It is not permitted to define a Relation connecting a Facet with another one;
- It is not permitted to define a Relation connecting a Facet with a Resource (as target);
- A Facet instance can be linked (by consistsOf or any specialization of it) from different Resources.
Property
Any Property can be enriched with the following attributes:
- Name : Property Name
- Type : The Type of the Property (e.g. String, Integer, ...). See Property Type
- Description : The description of the Property.
default=null
. - Mandatory (M): Indicate if the Property is mandatory.
default=false
. - ReadOnly (RO): The Property cannot change its value.
default=false
. - NotNull (NN):
default=false
- Max (Max):
default=null
- Min (Min):
default=null
- Regexpr (Reg)): A Regular Expression to validate the property value.
default=null
Property Type
Basic Property Type
Type | Description | Java type |
---|---|---|
Boolean | Handles only the values True or False | java.lang.Boolean or boolean
|
Integer | 32-bit signed Integers | java.lang.Integer or int
|
Short | Small 16-bit signed integers | java.lang.Short or short
|
Long | Big 64-bit signed integers | java.lang.Long or long
|
Float | Decimal numbers | java.lang.Float or float
|
Double | Decimal numbers with high precision | java.lang.Double or double
|
Datetime | Any date with the precision up to milliseconds. | java.util.Date
|
String | Any string as alphanumeric sequence of chars | java.lang.String
|
Embedded | This is an Object contained inside the owner Entity and has no Header. It is reachable only by navigating the owner Entity. | org.gcube.informationsystem.model.embedded.Embedded
|
Embedded list | List of Objects contained inside the owner Entity and have no Header. They are reachable only by navigating the owner Entity. | List<? extends Embedded>
|
Embedded set | Set (no duplicates) of Objects contained inside the owner Entity and have no Header. They are reachable only by navigating the owner Entity. | Set<? extends Embedded>
|
Embedded map | Map of Objects contained inside the owner Entity and have no Header. They are reachable only by navigating the owner Entity. | Map<String, ? extends Embedded>
|
Link ... | Link to another Entity. | ...
|
Byte | Single byte. usesful to store small 8-bit signed integers | java.lang.Byte or byte
|
Binary | Can contain any value as byte array | java.lang.Byte[] or byte[]
|
Any | Not determinated type, used to specify Collections of mixed type, and null | java.lang.Object
|
Derived Property Type
The following are obtained using a String as real type and adding a validation regex.
Type | Description | Java type |
---|---|---|
Enum | by default it is represented using the String representation of the Enum. So that the primitive type used will be String. The enumeration is checked by setting Regexpr property. The Regular Expression is auto-generated and it will be something like (FIRST-ENUM-STRING_REPRESENTATION|SECOND-ENUM-STRING_REPRESENTATION|...|LAST_ENUM_STRING_REPRESENTATION) .
Otherwise (if indicated using an annotation), it can be represented using the Integer value of the Enum. So that the primitive type used will be Integer. The enumeration is checked using |
java.lang.Enum or enum
|
UUID | String representation of the UUID. The check is obtained using the regular expression ([a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}){1}
|
java.util.UUID
|
URL | String representation of the URL. The check is obtained using a regex available at https://mathiasbynens.be/demo/url-regex (see diegoperini one). | java.net.URL
|
URI | String representation of the URI. The check is obtained using . | java.net.URI
|
Header
Every Entity and Relation has an Header automatically filled by the System. The Header has the following properties:
Name | Type | Description | Attributes |
---|---|---|---|
uuid | UUID | This uuid can be used to univocally identify the Entity or the Relation | Mandatory=true NotNull=true ReadOnly=true
|
creator | String | Filled at creation time. The creator is retrieved using the authorization token | Mandatory=true NotNull=true ReadOnly=true
|
creationTime | Datetime | Creation time in milliseconds. Represent the difference, measured in milliseconds, between the creation time and midnight, January 1, 1970 UTC | Mandatory=true NotNull=true ReadOnly=true
|
lastUpdateTime | Datetime | Last Update time in milliseconds. Represent the difference, measured in milliseconds, between the last update time and midnight, January 1, 1970 UTC | Mandatory=true NotNull=true
|
Resources and (isRelatedTo) Relations
Facets
Early ideas and thinking on facets were documented at 2nd Generation Resource Model : Facets
Facet
Every Facet has:
- An Header
- Zero or more properties. Some of the properties are predefined, but any other property can be added.
Access Point Facet
The goal of this facet is expected to capture information on “access points” for a resource, i.e. any endpoint to interact with the resource via a known protocol.
Name | Type | Description | Attributes |
---|---|---|---|
entryName | String | An unique identifier | |
endpoint | URI | The URI which identify the endpoint of a resource | Mandatory=true ReadOnly=true NotNull=true
|
protocol | String | The high-level protocol used by the access point. The String could contains the version if needed.
E.g. WMS not http which is already contained in URI. |
|
description | String | ..... | |
authorization | String | Contains authorization information. E.g: a token, username:password. By relying on schema it should be sufficient to capture also whether the content is encrypted or not | |
authorizationSchema | URI | .... | |
properties | String | This can be an arbitrarily complex element whose "structure" is defined by the associated schema | |
propertiesSchema | URI | .... |
Contact Facet
The goal of this facet is expected to capture contact information.
Name | Type | Description | Attributes |
---|---|---|---|
title | String | e.g. Dr, Mrs, Mr, ... | Mandatory=false
|
name | String | First Name | Mandatory=true NotNull=true
|
middleName | String | Middle Name | Mandatory=false
|
surname | String | Surname | Mandatory=true NotNull=true
|
An RFC‑822 compliant email address. | Mandatory=true NotNull=true Regex see http://www.ex-parrot.com/~pdw/Mail-RFC822-Address.html
| ||
website | URL | The main website | |
address | String | A physical address | |
phone | String | A phone number |
Coverage Facet
The goal of this facet is to collect any extent-related information.
Name | Type | Description | Attributes |
---|---|---|---|
value | String | ... | Mandatory=true NotNull=true
|
schema | URI | ... | Mandatory=true NotNull=true
|
CPU Facet
The goal of this facet is to describe CPU information.
Name | Type | Description | Attributes |
---|---|---|---|
model | String | ... | Mandatory=true NotNull=true
|
vendor | String | ... | Mandatory=true NotNull=true
|
clockSpeed | String | ... | Mandatory=true NotNull=true
|
Descriptive Metadata Facet
The goal of this facet is to collect any descriptive metadata about the resource.
Name | Type | Description | Attributes |
---|---|---|---|
value | String | Inherited. E.g. XML Blob | Mandatory=true NotNull=true
|
schema | URI | ... | Mandatory=true NotNull=true
|
Event Facet
The goal of this facet is to collect any descriptive metadata about the resource.
Name | Type | Description | Attributes |
---|---|---|---|
value | String | ... | Mandatory=true NotNull=true
|
schema | URI | ... | Mandatory=true NotNull=true
|
Functionality Related Facet
The goal of this facet is to capture what are the facilities supported (Challenging because of the different audiences) Something very "poor" ... we can have a look at WPS spec
Name | Type | Description | Attributes |
---|---|---|---|
name | String | ... | |
description | String | ... | |
input | String | ... | |
output | String | ... |
Identifier Facet
The goal of this facet is to collect information on Identifiers that can be attached to a resource.
Name | Type | Description | Attributes |
---|---|---|---|
value | String | The identifier. E.g. http://fr.dbpedia.org/resource/Thunnus de305d54-75b4-431b-adb2-eb6b9e546014 | Mandatory=true NotNull=true
|
type | Enumeration | The typology of identifier. I.e. URI, DOI, IRI, URL, URN, UUID; | Mandatory=true NotNull=true
|
isPersistent | boolean | To indicate if the Identifier is persistent or not. | Mandatory=true NotNull=true
|
License Facet
Name | Type | Description | Attributes |
---|---|---|---|
name | String | E.g. EUPL 1.1, GPLv2, BSD, ... | Mandatory=true NotNull=true
|
text | URL | Licence URL | Mandatory=true NotNull=true
|
Location Facet
The goal of this facet is to collect information about Location
Name | Type | Description | Attributes |
---|---|---|---|
Country | String | ... | |
Location | String | ... | |
Latitude | String | ... | |
Longitude | String | ... |
Memory Facet
The goal of this facet is to .....
Name | Type | Description | Attributes |
---|---|---|---|
size | Long | Total amount of memory. | Mandatory=true NotNull=true
|
used | Long | usesd amount of memory. | Mandatory=true NotNull=true
|
unit | Enum | I.e. Byte, kB (kilobyte 10^3), MB (megabyte 10^6), GB (gigabyte 10^9), TB (terabyte 10^12), PB (petabyte 10^15), EB (exabyte 10^18), ZB (zettabyte 10^21), YB (yottabyte 10^24) | Mandatory=true NotNull=true Regex=(Byte|kB,|MB|GB|TB|PB|EB|ZB|YB)
|
Network Address Facet
The goal of this facet is to capture IP information
Name | Type | Description | Attributes |
---|---|---|---|
hostName | String | ... | |
domainName | String | ... | |
IPAddress | String | ... | <code>Mandatory=true NotNull=true
|
mask | String | ... | |
broadcastAddress | String | ... |
Regular expression to validate different IPv4 addresses are available at:
Both IPv4 and IPv6: http://stackoverflow.com/questions/53497/regular-expression-that-matches-valid-ipv6-addresses
Peripheral Facet
The goal of this facet is to .....
Name | Type | Description | Attributes |
---|---|---|---|
model | String | ... | |
vendor | String | ... |
Provenance Facet
The goal of this facet is to collect information related with resource lineage/provenance
Name | Type | Description | Attributes |
---|---|---|---|
relationship | Enum | wasGeneratedBy | ... | |
reference | String | resourceID (a reference to the "originator" Resource associated to the resource the facet is attached to by the relationship) | |
provenanceDocument | String | ... E.g. the xml format | |
provenanceDocumentSchema | String | ... E.g. a reference to the format |
Schema Facet
The goal of this facet is to provide a way to store a schema. This is an Abstract
facet.
Name | Type | Description | Attributes |
---|---|---|---|
name | String | ... | Mandatory=true NotNull=true
|
description | String | ... | Mandatory=true NotNull=true
|
schemaURL | URL | ... |
JSON Schema Facet
Name | Type | Description | Attributes |
---|---|---|---|
content | ... | ... | Mandatory=true NotNull=true
|
XSD Schema Facet
Name | Type | Description | Attributes |
---|---|---|---|
content | ... | ... | Mandatory=true NotNull=true
|
Simple Property Facet
The goal of this facet is to ...
Name | Type | Description | Attributes |
---|---|---|---|
name | String | ... | Mandatory=true NotNull=true
|
value | String | ... | Mandatory=true NotNull=true
|
Software Facet
The goal of this facet is to capture SW related features"
Name | Type | Description | Attributes |
---|---|---|---|
name | String | The name of the software artefact being described. E.g. artifactId in maven, Service Name in gCube software, the software name for retail software Microsoft Office 2013-SP2. | |
group | String | The name of "group" the software artefact belongs to. E.g. groupId in Maven, ServiceClass in gCube software, company name for retail software Microsoft Office 2013-SP2. | |
version | String | The particular release of the software artefact. E.g. maven version, Service Version in gCube software, artifactId in maven, the software version for retail software Microsoft Office 2013-SP2. | |
description | String | A human oriented description of the software artefact being described. | |
qualifier | String | E.g. packaging or scope in maven, scope level or sharable level in gCube software, target architecture for retail software x86 or amd64. | |
optional | Boolean | .... usesd in maven and in gcube |
State Facet
The goal of this facet is to ...
Name | Type | Description | Attributes |
---|---|---|---|
value | String | The value of the state. Must be compliant with schema. | Mandatory=true NotNull=true
|
Container State Facet
Name | Type | Description | Attributes |
---|---|---|---|
value | String | The value of the state | Mandatory=true NotNull=true Regex=(started|ready|certified|down|failed)
|
Service State Facet
Name | Type | Description | Attributes |
---|---|---|---|
value | String | The value of the state | Mandatory=true NotNull=true Regex=(STARTED|ready|down|failed)
|
Subject Facet
The goal of this facet is to ...
Name | Type | Description | Attributes |
---|---|---|---|
value | String | The value of the state. Must be compliant with schema. | Mandatory=true NotNull=true
|
schema | URI | The URI of the schema. It is only an informative field. It is not used for validation from IS part. | Mandatory=true NotNull=true
|
Relations
Every relation has:
- An Header
- A Relation Property
- Zero or More properties (not necessarily predefined, similarly to Facets).
Relation Property
Name | Type | Description |
---|---|---|
referentialIntegrity | Enum | I.e. onDeleteCascadeWhenOrphan, onDeleteCascade, onDeleteKeep. The meaning is related to the relation direction. |
accessPolicy | Embedded (i.e. AccessPolicy) | A policy is characterized by a name, a description, and the period ([start], [end]) when the policies apply |
expiryTime | Long | The expiry date can be used to model the time until the relationship is valid, Expiry time in milliseconds. Represent the difference, measured in milliseconds, between the creation time and midnight, January 1, 1970 UTC |
isRelatedTo
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Resource | isRelatedTo | 0..n | Resource |
belongsTo
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Person | belongsTo | 0..n | Legal Body | ... |
callsFor
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Service | callsFor | 0..n | Service |
demands
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Virtual Service | demands | 0..n | Software |
dependsOn
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Software | dependsOn | 0..n | Software |
discovers
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
E-Service | discovers | 0..n | E-Service |
hosts
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Hosting Node | hosts | 0..n | E-Service |
isActivatedBy
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Running Plugin | isActivatedBy | 1..1 | E-Service |
isConfiguredBy
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Software | isConfiguredBy | 0..n | Configuration Template |
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Dataset | isCorrelatedTo | 0..n | Dataset |
isPartOf
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Concrete Dataset | isPartOf | 0..n | Dataset |
isCustomizedBy
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Service | isCustomizedBy | 0..n | Configuration |
isDerivationOf
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Configuration | isDerivationOf | 1..1 | Configuration Template |
isManagedBy
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Hosting Node | isManagedBy | 0..n | Site |
isPluginOf
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Plugin | isPluginOf | 1..n | Software |
isPoweredBy
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Hosting Node | isPoweredBy | 0..n | Software |
manages
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Service | manages | 0..n | Dataset |
requires
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Software | requires | 0..n | Service |
runs
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
E-Service | runs | 0..n | Software |
runsPlugin
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Running Plugin | runsPlugin | 1..1 | Plugin |
uses
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
E-Service | uses | 0..n | E-Service |
consistsOf
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Resource | consistsOf | 1..n | Facet |
isIdentifiedBy
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resource | isIdentifiedBy | 1..n | Facet | |
Known Usage | ||||
Actor | isIdentifiedBy | 1..n | Contact | |
Configuration | isIdentifiedBy | 1..n | Simple Property | |
Dataset | isIdentifiedBy | 1..n | Identifier | |
Concrete Dataset | isIdentifiedBy | 1..n | Identifier | |
Virtual Service | isIdentifiedBy | 1..n | Software | ... |
E-Service | isIdentifiedBy | 1..1 | Software | ... |
Schema | isIdentifiedBy | 1..n | Identification | ... |
Site | isIdentifiedBy | 1..n | Identification | ... |
Software | isIdentifiedBy | 1..n | Software | Software coordinates which identify the Software per se. |
Plugin | isIdentifiedBy | 1..n | Software | Software coordinates which identify the Plugin per se. |
hasCoverage
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resources | hasCoverage | 0..n | Coverage | ... |
Known Usage | ||||
Dataset | hasCoverage | 1..n | Coverage | ... |
hasTemporal
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resources | hasTemporal | 0..n | Coverage | ... |
Known Usage | ||||
Dataset | hasTemporal | 0..n | Coverage | ... |
hasSpatial
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resources | hasSpatial | 0..n | Coverage | ... |
Known Usage | ||||
Dataset | hasSpatial | 0..n | Coverage | ... |
hasMemory
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resources | hasMemory | 0..n | Memory | ... |
hasPersistent
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resources | hasPersistent | 0..n | Memory | ... |
Known Usage | ||||
Hosting Node | hasPersistent | 1..n | Memory | Disk Space |
hasVolatile
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resources | hasVolatile | 0..n | Memory | ... |
Known Usage | ||||
Hosting Node | hasVolatile | 1..n | Memory | RAM |
hasContact
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resource | hasContact | 0..n | Contact | |
Known Usage | ||||
Dataset | hasContact | 1..n | Contact | ... |
hasContributor
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resource | hasContributor | 0..n | Contact | |
Known Usage | ||||
Dataset | hasContributor | 0..n | Contact | Is he the contributor |
hasCreator
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resource | hasCreator | 0..n | Contact | |
Known Usage | ||||
Dataset | hasCreator | 0..n | Contact | Is he the creator |
hasCurator
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resource | hasCurator | 0..n | Contact | |
Known Usage | ||||
Dataset | hasCurator | 0..n | Contact | Is he the curator |
hasDeveloper
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resource | hasDeveloper | 0..n | Contact | |
Known Usage |
hasMaintainer
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resource | hasMaintainer | 0..n | Contact | |
Known Usage | ||||
Dataset | hasMaintainer | 0..n | Contact | Is he the maintainer |
hasManager
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resource | hasManager | 0..n | Contact | |
Known Usage |
hasOwner
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Definition | ||||
Resource | hasOwner | 0..n | Contact | |
Known Usage | ||||
Dataset | hasOwner | 0..n | Contact | Is he the owner |
Resources
Every Resource has:
A class can be identified as Abstract
. This means that cannot be instantiated. uses specialization instead.
It is not required that an Abstract class establish an isIdentifiedBy relation with a Facet.
Resource
This entity is conceived to describe every "main thing" to be registered and discovered by the Information System. | ||||
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Resource | isIdentifiedBy | 1..n | Facet | Any Resource has at least one Facet which in some way allow to identify the Resource per se. |
Resource | consistsOf | 0..n | Facet | Any Resource consist of zero or more Facets which describes the different aspects of the facet. |
Resources | ||||
Resource | isRelatedTo | 0..n | Resource | Any Resource can be related to any other resource. |
The following Resources have been identified:
Actor
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Actor | isIdentifiedBy | 1..n | Contact | An Actor has at least a Contact Facet which permit to identify the Actor per se. |
Actor | hasContact | 0..n | Contact | An Actor can have other Contact Facets which provide secondary contact information. |
Resources | ||||
Actor | isRelatedTo | 0..n | ... | ... |
Person
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Person | isIdentifiedBy | 1..n | Contact | A Person has at least a Contact Facet which permit to identify the Person per se. |
Resources | ||||
Person | belongsTo | 0..n | Legal Body | ... |
Legal Body
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Legal Body | isIdentifiedBy | 1..n | Contact | A Legal Body has at least a Contact Facet which permit to identify the Legal Body per se. |
Resources | ||||
Person | belongsTo | 0..n | Legal Body | ... |
Configuration Template
It represents a template for a configuration. It describe how a configuration has to be realized. E.g. Used to define the accounting configuration parameters template.
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Configuration Template | isIdentifiedBy | 1..n | Identifies | ... |
Configuration Template | consistsOf | 1..n | Simple Property | ... |
Resources | ||||
Configuration | isDerivationOf | 1..1 | Configuration Template | ... |
Software | isConfiguredBy | 0..n | Configuration Template | ... |
Configuration
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Configuration | isIdentifiedBy | 1..n | Identifies | ... |
Resources | ||||
Configuration | isDerivationOf | 1..1 | Configuration Template | ... |
Service | isCustomizedBy | 0..n | Configuration | ... |
Dataset
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Dataset | isIdentifiedBy | 1..n | Identifier | ... |
Dataset | hasContact | 1..n | Contact | ... |
Dataset | hasContributor | 0..n | Contact | Is he the contributor |
Dataset | hasCreator | 0..n | Contact | Is he the creator |
Dataset | hasCurator | 0..n | Contact | Is he the curator |
Dataset | hasMaintainer | 0..n | Contact | Is he the maintainer |
Dataset | hasOwner | 0..n | Contact | Is he the owner |
Dataset | consistsOf | 0..n | Access Point | The embargoState can be modeled through the access policy defined in the consistsOf relation |
Dataset | consistsOf | 0..n | License | The duration of license if any can can be modeled through the expiry date defined in the consistsOf relation |
Dataset | consistsOf | 0..n | Event | ... |
Dataset | consistsOf | 0..n | Provenance | ... |
Dataset | hasCoverage | 1..n | Coverage | ... |
Dataset | hasTemporal | 0..n | Coverage | ... |
Dataset | hasSpatial | 0..n | Coverage | ... |
Dataset | consistsOf | 0..n | Descriptive Metadata | ... |
Dataset | consistsOf | 0..n | Subject | ... |
Resources | ||||
Dataset | isCorrelatedTo | 0..n | Dataset | ... |
Concrete Dataset | isPartOf | 0..n | Dataset | ... |
Service | manages | 0..n | Dataset | ... |
Concrete Dataset
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Concrete Dataset | isIdentifiedBy | 1..n | Identifier | |
Concrete Dataset | hasMaintainer | 1..n | Contact | Is he the maintainer |
Concrete Dataset | consistsOf | 1..n | Access Point | The embargoState can be modeled through the access policy defined in the consistsOf relation |
Resources | ||||
Concrete Dataset | isPartOf | 0..n | Dataset | ... |
Service
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Service | isIdentifiedBy | 1..n | Facet | |
Resources | ||||
Service | callsFor | 0..n | Service | ... |
Service | isCustomizedBy | 0..n | Configuration | ... |
Service | manages | 0..n | Dataset | ... |
Software | requires | 0..n | Service | ... |
Virtual Service
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Virtual Service | isIdentifiedBy | 1..n | Software | ... |
Resources | ||||
Virtual Service | demands | 0..n | Software | ... |
E-Service
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
E-Service | isIdentifiedBy | 1..n | Software | The software enabling the E-Service capabilities |
E-Service | consistsOf | 0..n | Software | Software available in the E-Service environment that characterizes the specific E-Service instance |
E-Service | consistsOf | 1..n | Access Point | Identify the endpoints of the E-Service |
E-Service | consistsOf | 1..n | Event | E.g. ActivationTime, DeploymentTime |
E-Service | consistsOf | 1..1 | Service State | I.e. STARTED, ready, down, failed |
E-Service | consistsOf | 0..n | License | The specific terms of use for programmatic access to the service |
Resources | ||||
E-Service | discovers | 0..n | E-Service | A reference to any other E-Service, the E-Service instance is discovering through query on IS. |
E-Service | runs | 0..n | Software | ... |
E-Service | uses | 0..n | E-Service | A reference to any other E-Service, the E-Service instance is invoking. |
Hosting Node | hosts | 0..n | E-Service | ... |
Running Plugin | isActivatedBy | 1..1 | E-Service | A reference to the E-Service is running the plugin. |
Running Plugin
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Running Plugin | isIdentifiedBy | 1..1 | Software | The software enabling the Running Plugin |
Resources | ||||
Running Plugin | isActivatedBy | 1..1 | E-Service | A reference to the E-Service is running the plugin. |
Running Plugin | runsPlugin | 0..n | Plugin | ... |
Hosting Node
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Hosting Node | isIdentifiedBy | 1..n | Network Address | ... |
Hosting Node | consistsOf | 1..n | CPU | CPU Information |
Hosting Node | hasPersistent | 1..n | Memory | Disk Space |
Hosting Node | hasVolatile | 1..n | Memory | RAM |
Hosting Node | consistsOf | 1..n | Event | ... |
Hosting Node | consistsOf | 1..1 | Container State | I.e. started, ready, certified, down, failed |
Hosting Node | consistsOf | 0..n | Simple Property | E.g. Environment Variables |
Hosting Node | consistsOf | 0..n | Software | Useful to report the hosted software that are not registered in the Resource Registry as Software Resource, e.g. Operating System |
Resources | ||||
Hosting Node | hosts | 0..n | E-Service | A reference to any E-Service instance, the Hosting Node instance is hosting. |
Hosting Node | isManagedBy | 0..n | Site | ... |
Hosting Node | isPoweredBy | 0..n | Software | ... |
Schema
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Schema | isIdentifiedBy | 1..n | Schema | ... |
Schema | hasContact | 1..n | Contact | ... |
Schema | consistsOf | 0..n | Descriptive Metadata | ... |
Schema | consistsOf | 0..n | Subject | ... |
Resources | ||||
Schema | ... | 0..n | ... | ... |
Site
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Site | isIdentifiedBy | 1..n | Identifier | ... |
Site | hasContact | 1..n | Contact | ... |
Site | hasMaintainer | 1..n | Contact | ... |
Site | hasManager | 1..n | Contact | ... |
Site | consistsOf | 1..n | Location | ... |
Site | consistsOf | 1..n | Network Address | Network address ... |
Resources | ||||
Hosting Node | isManagedBy | 0..n | Site | ... |
Software
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Software | isIdentifiedBy | 1..n | Software | Software coordinates which identify the Software per se. |
Software | consistsOf | 1..n | Software | Apart the one connected with isIdentifiedBy relation (gCube coordinates) the others identify the sw in other way e.g. (Maven coordinates) |
Software | consistsOf | 1..n | Access Point | Links to maven artifact on nexus, javadoc, wiki, svn ... |
Software | consistsOf | 1..n | License | ... |
Software | consistsOf | 1..n | State | E.g. Deprecated, Active, Obsolete |
Resources | ||||
Software | dependsOn | 0..n | Software | ... |
Software | isConfiguredBy | 0..n | Configuration Template | E.g. Accounting Sw uses it to discover the configuration |
Software | requires | 0..n | Service | E.g. A software requiring a specific database |
Virtual Service | demands | 0..n | Software | ... |
E-Service | runs | 0..n | Software | ... |
Hosting Node | isPoweredBy | 0..n | Software | ... |
Plugin | isPluginOf | 0..n | Software | ... |
Plugin
Source | Relation | Multiplicity | Target | Description |
---|---|---|---|---|
Facets | ||||
Plugin | isIdentifiedBy | 1..n | Software | Software coordinates which identify the Plugin per se. |
Resources | ||||
Plugin | isPluginOf | 1..n | Software | A reference to the Software this Plugin extends capabilities. |
Running Plugin | runsPlugin | 0..n | Plugin | ... |
Best practices and guidelines
- On Facet instances "reuse" across Resource Profiles:
- This can be guaranteed automatically by the system, if and just in the case the system want to avoid duplication of information. It is based on a configuration policy;
- This MUST be done only when a change in a facet instance MUST affect a change in all Resources connected to such a Facet.
Internal Entity and Relation
For internal use only are defined the following entity and relation:
Context
Model a Context (aka scope)
isParentOf
Source | Target | Description |
---|---|---|
Context | Context |