diff --git a/DESIGN.md b/DESIGN.md
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@@ -17,7 +17,9 @@ Graphs and jobs are defined in [bazel](https://bazel.build), allowing graphs (an
 - **Jobs** - Their `exec` entrypoint builds partitions from partitions, and their `config` entrypoint specifies what partitions are required to produce the requested partition(s), along with the specific config to run `exec` with to build said partitions.
 - **Graphs** - Composes jobs together to achieve multi-job orchestration, using a `lookup` mechanism to resolve a requested partition to the job that can build it. Together with its constituent jobs, Graphs can fully plan the build of any set of partitions. Most interactions with a DataBuild app happen with a graph.
 - **Build Event Log** - Encodes the state of the system, recording build requests, job activity, partition production, etc to enable running databuild as a deployed application.
-- **Bazel Targets** - Bazel is a fast, extensible, and hermetic build system. DataBuild uses bazel targets to describe graphs and jobs, making graphs themselves deployable application. Implementing a DataBuild app is the process of integrating your data build jobs in `databuild_job` bazel targets, and connecting them with a `databuild_graph` target. 
+- **Wants** - Partition wants can be registered with DataBuild, causing it to build the wanted partitions as soon as its graph-external dependencies are met.
+- **Taints** - Taints mark a partition as invalid, indicating that readers should not use it, and that it should be rebuilt when requested or depended upon. If there is a still-active want for the tainted partition, it will be rebuilt immediately.
+- **Bazel Targets** - Bazel is a fast, extensible, and hermetic build system. DataBuild uses bazel targets to describe graphs and jobs, making graphs themselves deployable application. Implementing a DataBuild app is the process of integrating your data build jobs in `databuild_job` bazel targets, and connecting them with a `databuild_graph` target.
 - [**Graph Specification Strategies**](design/graph-specification.md) (coming soon) Application libraries in Python/Rust/Scala that use language features to enable ergonomic and succinct specification of jobs and graphs.
 
 ### Partition / Job Assumptions and Best Practices