Distributed Immutable Data Object Test Environment (DIDO-TE) [Dido Solutions, Inc Wiki]

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====== Distributed Immutable Data Object Test Environment (DIDO-TE) ======

[[dido:99_annexes:annex-b-terms-and-definitions:start|Go up to Terms and Definitions]]

===== Discussion =====

A Distributed Immutable Data Object Test Environment (DIDO-TE) is a governed testing system for evaluating [[dido:99_annexes:annex-b-terms-and-definitions:d:dido|Distributed Immutable Data Objects (DIDOs)]] and the [[dido:99_annexes:annex-b-terms-and-definitions:d:distributed_system|Distributed Systems]] that maintain them.

DIDO-TE manages controlled [[dido:99_annexes:annex-b-terms-and-definitions:t:test_environment|Test Environments]] containing the Nodes, resources, configurations, communication facilities, execution facilities, observation facilities, and Evidence facilities required by applicable Test Definitions.

DIDO-TE supports the controlled execution of tests involving:

  * DIDO Platforms
  * DIDO implementations
  * DIDO Nodes
  * Node Sets
  * State-agreement mechanisms
  * Distributed transactions
  * DIDO states
  * State transitions
  * Communication mechanisms
  * Network topologies
  * Deployment Targets
  * Security configurations
  * Operational configurations
  * Application workloads

DIDO-TE separates testing concepts from the technologies used to realize them. A DIDO-TE implementation can evaluate different DIDO Platforms, Node implementations, Deployment Platforms, and communication technologies without redefining the governing testing concepts.

DIDO-TE can establish a Validated Reference Configuration, execute a Test Definition against that configuration, and preserve the resulting Test Results as Baseline Results.

After an evaluator introduces a controlled change, DIDO-TE can repeat the applicable test, compare the resulting DIDO states and Test Results with the Baseline Results, identify Differences, and preserve the Evidence required for a Validation Decision.

DIDO-TE supports testing in:

  * Physical environments
  * Virtual environments
  * Containerized environments
  * Cloud environments
  * On-premises environments
  * Geographically distributed environments
  * [[dido:99_annexes:annex-b-terms-and-definitions:c:connected_environment|Connected Environments]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:d:disconnected_environment|Disconnected Environments]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:a:air-gapped_environment|Air-Gapped Environments]]

===== Definition =====

//governed testing system comprising controlled Test Environments and supporting facilities for the reproducible evaluation and validation of DIDOs and DIDO systems//

===== Source =====

Adapted from:

  * [[https://www.omgwiki.org/dido/doku.php?id=dido:public:te|DIDO Test Environment System Description, Version 0.2]]
  * [[https://www.omgwiki.org/dido/doku.php?id=dido:public:ra|DIDO Reference Architecture]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:d:dido|Distributed Immutable Data Object (DIDO)]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:t:test_environment|Test Environment]]
  * United States Patent Application Publication US 2022/0237111 A1, Distributed Immutable Data Object Testing
  * United States Patent US 12,086,057 B2, Distributed Immutable Data Object Testing
  * DIDO-TE draft Requirements Register
  * DIDO-TE Broad Agency Announcement and supporting proposal material

The definition generalizes the earlier secure and isolated virtual-node sandbox concept to include governance, reproducibility, baseline generation, comparison, validation, and Evidence while remaining independent of a particular implementation technology.

===== Note =====

DIDO-TE is the acronym for **Distributed Immutable Data Object Test Environment**.

DIDO-TE identifies the governed testing system. A [[dido:99_annexes:annex-b-terms-and-definitions:t:test_environment|Test Environment]] identifies a configured context within which DIDO-TE executes a particular test or related group of tests.

One DIDO-TE implementation can manage multiple Test Environments.

DIDO-TE is not a DIDO Platform. DIDO-TE can evaluate one or more DIDO Platforms.

DIDO-TE is not itself a DIDO. DIDO-TE creates, submits, observes, records, compares, and validates transactions, states, and results involving DIDOs.

DIDO-TE is not limited to virtual Nodes. A DIDO-TE Test Environment can include physical, virtual, containerized, simulated, emulated, and externally operated Nodes when the applicable Test Definition permits them.

DIDO-TE does not prescribe a particular:

  * DIDO Platform
  * State-agreement mechanism
  * Deployment Platform
  * Deployment Target
  * Virtualization technology
  * Container technology
  * Cloud provider
  * Network protocol
  * Test execution technology
  * Evidence representation
  * Comparison mechanism
  * Validation mechanism

DIDO-TE can integrate with [[dido:99_annexes:annex-b-terms-and-definitions:c:crucible|Crucible]] for infrastructure and Deployment operations. The integration does not make Crucible part of the DIDO-TE definition.

===== Example =====

DIDO-TE creates a controlled [[dido:99_annexes:annex-b-terms-and-definitions:t:test_environment|Test Environment]] containing a validated set of DIDO Nodes.

DIDO-TE executes a defined set of transactions and preserves the resulting DIDO states and Test Results as Baseline Results.

An evaluator replaces one Node with a changed implementation and repeats the same test under the applicable controlled conditions.

DIDO-TE compares the resulting DIDO states and Test Results with the Baseline Results. DIDO-TE preserves the comparison, detected Differences, execution context, and supporting Evidence for a Validation Decision.

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