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reference Blackbird #126

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merged 3 commits into from
Apr 16, 2024
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reference Blackbird #126

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63ca50a
reference Blackbird
bradNASA Feb 17, 2024
6cb8bfa
fix typo
bradNASA Feb 17, 2024
feca5cc
rewording to fix innacuracies
bradNASA Feb 17, 2024
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8 changes: 7 additions & 1 deletion docs/mission-modeling/advanced-the-merlin-interface.mdx
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Expand Up @@ -5,7 +5,13 @@ Aerie is a software framework for modeling spacecraft. Within Aerie is **Merlin*
Because mission models are expressed in Java, rather than a custom DSL, Merlin has little to no ability to see the actual Java code comprising a mission model.
Merlin must instead make inferences about the mission model based on its observable behavior.

Predecessors of Merlin, such as [APGen](https://trs.jpl.nasa.gov/handle/2014/45571) and [SEQGen](https://trs.jpl.nasa.gov/handle/2014/45455), provided a domain-specific language for mission modeling, allowing them to obtain deep, fine-grained information about the composition of a mission model before performing any simulation.
Merlin is a spiritual successor to the
[Blackbird](https://trs.jpl.nasa.gov/handle/2014/52245) planning
system, which similarly uses Java for activity and resource modeling.
Blackbird's design shed light on the myriad choices made in designing
Merlin.

Predecessors of Merlin and Blackbird, such as [APGen](https://trs.jpl.nasa.gov/handle/2014/45571) and [SEQGen](https://trs.jpl.nasa.gov/handle/2014/45455), provided a domain-specific language for mission modeling, allowing them to obtain deep, fine-grained information about the composition of a mission model before performing any simulation.
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The "provided" in this file was changed to "provide" in the other changed file. It would be best if they agreed, although it's a minor nit. (Either "provided" or "provide" is reasonable: "provided" relative to Merlin and "provide" relative to the fact that they're still in use.)

In some ways, this provides enhanced ergonomics, as a mission modeler can focus on expressing their model directly in the modeling language, without being concerned with the needs of the system that will be interpreting that model.
The language itself captures all interesting aspects of the model.

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10 changes: 8 additions & 2 deletions docs/overview/software-design-document.mdx
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Expand Up @@ -892,9 +892,15 @@ DSL, Merlin has little to no ability to see the actual Java code
comprising a mission model. Merlin must instead make inferences about
the mission model based on its observable behavior.

Predecessors of Merlin, such as
Merlin is a spiritual successor to the
[Blackbird](https://trs.jpl.nasa.gov/handle/2014/52245) planning
system, which similarly uses Java for activity and resource modeling.
Blackbird's design shed light on the myriad choices made in designing
Merlin.

Predecessors of Merlin and Blackbird, such as
[APGen](https://trs.jpl.nasa.gov/handle/2014/45571) and
[SEQGen](https://trs.jpl.nasa.gov/handle/2014/45455), provided a
[SEQGen](https://trs.jpl.nasa.gov/handle/2014/45455), provide a
domain-specific language for mission modeling, allowing them to obtain
deep, fine-grained information about the composition of a mission
model before performing any simulation. In some ways, this provides
Expand Down
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