diff --git a/dataforge-data/src/commonMain/kotlin/hep/dataforge/data/DataNode.kt b/dataforge-data/src/commonMain/kotlin/hep/dataforge/data/DataNode.kt
index b463ba88..6081a13e 100644
--- a/dataforge-data/src/commonMain/kotlin/hep/dataforge/data/DataNode.kt
+++ b/dataforge-data/src/commonMain/kotlin/hep/dataforge/data/DataNode.kt
@@ -206,4 +206,6 @@ fun <T : Any> DataNode<T>.filter(predicate: (Name, Data<T>) -> Boolean): DataNod
     }
 }
 
+fun <T: Any> DataNode<T>.first(): Data<T> = data().first().second
+
 //fun <T : Any, R: T> DataNode<T>.filterIsInstance(type: KClass<R>): DataNode<R> = filter{_,data -> type.}
\ No newline at end of file
diff --git a/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/JoinAction.kt b/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/JoinAction.kt
index 5529a287..6f2cf3f9 100644
--- a/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/JoinAction.kt
+++ b/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/JoinAction.kt
@@ -16,7 +16,7 @@ class JoinGroup<T : Any, R : Any>(var name: String, internal val node: DataNode<
 
     var meta: MetaBuilder = MetaBuilder()
 
-    var result: suspend ActionEnv.(Map<Name, T>) -> R = TODO("Action not implemented")
+    lateinit var result: suspend ActionEnv.(Map<Name, T>) -> R
 
     fun result(f: suspend ActionEnv.(Map<Name, T>) -> R) {
         this.result = f;
diff --git a/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/PipeAction.kt b/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/PipeAction.kt
index 4e2f9380..268fafec 100644
--- a/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/PipeAction.kt
+++ b/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/PipeAction.kt
@@ -14,7 +14,7 @@ class ActionEnv(val name: Name, val meta: Meta)
  * Action environment
  */
 class PipeBuilder<T, R>(var name: Name, var meta: MetaBuilder) {
-    var result: suspend ActionEnv.(T) -> R = TODO("Action not implemented")
+    lateinit var result: suspend ActionEnv.(T) -> R
 
     /**
      * Calculate the result of goal
diff --git a/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/SplitAction.kt b/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/SplitAction.kt
index 6ffa8881..38740124 100644
--- a/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/SplitAction.kt
+++ b/dataforge-data/src/jvmMain/kotlin/hep/dataforge/data/SplitAction.kt
@@ -14,7 +14,7 @@ import kotlin.reflect.full.isSuperclassOf
 
 
 class FragmentRule<T : Any, R : Any>(val name: Name, var meta: MetaBuilder) {
-    var result: suspend (T) -> R = TODO("Action not implemented")
+    lateinit var result: suspend (T) -> R 
 
     fun result(f: suspend (T) -> R) {
         result = f;
diff --git a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/Dependency.kt b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/Dependency.kt
index b1f3e90a..1aa4bbb1 100644
--- a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/Dependency.kt
+++ b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/Dependency.kt
@@ -19,35 +19,49 @@ sealed class Dependency : MetaRepr {
 
 class DataDependency(val filter: DataFilter, val placement: Name = EmptyName) : Dependency() {
     override fun apply(workspace: Workspace): DataNode<Any> {
-        val result =  workspace.data.filter(filter)
+        val result = workspace.data.filter(filter)
         return if (placement.isEmpty()) {
             result
         } else {
-            DataNode.build(Any::class){ this[placement] = result }
+            DataNode.build(Any::class) { this[placement] = result }
         }
     }
 
-    override fun toMeta(): Meta = filter.config
-
-    companion object {
-        val all: DataDependency = DataDependency(DataFilter.build { })
+    override fun toMeta(): Meta = buildMeta {
+        "data" to filter.config
+        "to" to placement
     }
 }
 
+class AllDataDependency(val placement: Name = EmptyName) : Dependency() {
+    override fun apply(workspace: Workspace): DataNode<Any> = if (placement.isEmpty()) {
+        workspace.data
+    } else {
+        DataNode.build(Any::class) { this[placement] = workspace.data }
+    }
+
+    override fun toMeta() = buildMeta {
+        "data" to "*"
+        "to" to placement
+    }
+
+}
+
 class TaskModelDependency(val name: String, val meta: Meta, val placement: Name = EmptyName) : Dependency() {
     override fun apply(workspace: Workspace): DataNode<Any> {
         val task = workspace.tasks[name] ?: error("Task with name ${name} is not found in the workspace")
         if (task.isTerminal) TODO("Support terminal task")
-        val result = with(workspace) { task(meta) }
+        val result = workspace.run(task, meta)
         return if (placement.isEmpty()) {
             result
         } else {
-            DataNode.build(Any::class){ this[placement] = result }
+            DataNode.build(Any::class) { this[placement] = result }
         }
     }
 
     override fun toMeta(): Meta = buildMeta {
-        "name" to name
+        "task" to name
         "meta" to meta
+        "to" to placement
     }
 }
\ No newline at end of file
diff --git a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/SimpleWorkspace.kt b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/SimpleWorkspace.kt
new file mode 100644
index 00000000..16ab8f6f
--- /dev/null
+++ b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/SimpleWorkspace.kt
@@ -0,0 +1,27 @@
+package hep.dataforge.workspace
+
+import hep.dataforge.context.Context
+import hep.dataforge.context.Global
+import hep.dataforge.context.members
+import hep.dataforge.data.DataNode
+import hep.dataforge.meta.Meta
+
+
+/**
+ * A simple workspace without caching
+ */
+class SimpleWorkspace(
+    override val context: Context,
+    override val data: DataNode<Any>,
+    override val targets: Map<String, Meta>,
+    tasks: Collection<Task<Any>>
+) : Workspace {
+    override val tasks: Map<String, Task<*>> by lazy {
+        (context.members<Task<*>>(Task.TYPE) + tasks).associate { it.name to it }
+    }
+
+    companion object {
+        fun build(parent: Context = Global, block: SimpleWorkspaceBuilder.() -> Unit): SimpleWorkspace =
+            SimpleWorkspaceBuilder(parent).apply(block).build()
+    }
+}
\ No newline at end of file
diff --git a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/TaskModel.kt b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/TaskModel.kt
index 25ec2e0f..0e07147c 100644
--- a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/TaskModel.kt
+++ b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/TaskModel.kt
@@ -68,15 +68,21 @@ class TaskModelBuilder(val name: String, meta: Meta = EmptyMeta) {
     var meta: MetaBuilder = meta.builder()
     val dependencies = HashSet<Dependency>()
 
-    var target: String by this.meta.string(key = MODEL_TARGET_KEY,default = "")
+    var target: String by this.meta.string(key = MODEL_TARGET_KEY, default = "")
 
     /**
      * Add dependency for
      */
-    fun dependsOn(name: String, meta: Meta, placement: Name = EmptyName) {
+    fun dependsOn(name: String, meta: Meta = this.meta, placement: Name = EmptyName) {
         dependencies.add(TaskModelDependency(name, meta, placement))
     }
 
+    fun dependsOn(task: Task<*>, meta: Meta = this.meta, placement: Name = EmptyName) =
+        dependsOn(task.name, meta, placement)
+
+    fun dependsOn(task: Task<*>, placement: Name = EmptyName, metaBuilder: MetaBuilder.() -> Unit) =
+        dependsOn(task.name, buildMeta(metaBuilder), placement)
+
     /**
      * Add custom data dependency
      */
@@ -96,8 +102,8 @@ class TaskModelBuilder(val name: String, meta: Meta = EmptyMeta) {
     /**
      * Add all data as root node
      */
-    fun allData() {
-        dependencies.add(DataDependency.all)
+    fun allData(to: Name = EmptyName) {
+        dependencies.add(AllDataDependency(to))
     }
 
     fun build(): TaskModel = TaskModel(name, meta.seal(), dependencies)
diff --git a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/Workspace.kt b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/Workspace.kt
index e9a2914d..89af04a2 100644
--- a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/Workspace.kt
+++ b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/Workspace.kt
@@ -1,11 +1,11 @@
 package hep.dataforge.workspace
 
-import hep.dataforge.context.Context
 import hep.dataforge.context.ContextAware
-import hep.dataforge.context.members
 import hep.dataforge.data.Data
 import hep.dataforge.data.DataNode
 import hep.dataforge.meta.Meta
+import hep.dataforge.meta.MetaBuilder
+import hep.dataforge.meta.buildMeta
 import hep.dataforge.names.Name
 import hep.dataforge.names.toName
 import hep.dataforge.provider.Provider
@@ -49,40 +49,46 @@ interface Workspace : ContextAware, Provider {
         }
     }
 
-    operator fun <R : Any> Task<R>.invoke(config: Meta): DataNode<R> {
+
+    /**
+     * Invoke a task in the workspace utilizing caching if possible
+     */
+    fun <R : Any> run(task: Task<R>, config: Meta): DataNode<R> {
         context.activate(this)
         try {
-            val model = build(this@Workspace, config)
-            validate(model)
-            return run(this@Workspace, model)
+            val model = task.build(this, config)
+            task.validate(model)
+            return task.run(this, model)
         } finally {
             context.deactivate(this)
         }
     }
 
-    /**
-     * Invoke a task in the workspace utilizing caching if possible
-     */
-    operator fun <R : Any> Task<R>.invoke(targetName: String): DataNode<R> {
-        val target = targets[targetName] ?: error("A target with name $targetName not found in ${this@Workspace}")
-        return invoke(target)
-    }
+//    /**
+//     * Invoke a task in the workspace utilizing caching if possible
+//     */
+//    operator fun <R : Any> Task<R>.invoke(targetName: String): DataNode<R> {
+//        val target = targets[targetName] ?: error("A target with name $targetName not found in ${this@Workspace}")
+//        context.logger.info { "Running ${this.name} on $target" }
+//        return invoke(target)
+//    }
 
     companion object {
         const val TYPE = "workspace"
     }
 }
 
-class SimpleWorkspace(
-    override val context: Context,
-    override val data: DataNode<Any>,
-    override val targets: Map<String, Meta>,
-    tasks: Collection<Task<Any>>
-) : Workspace {
-
-    override val tasks: Map<String, Task<*>> by lazy {
-        (context.members<Task<*>>(Task.TYPE) + tasks).associate { it.name to it }
-    }
-
+fun Workspace.run(task: Task<*>, target: String): DataNode<Any> {
+    val meta = targets[target] ?: error("A target with name $target not found in ${this}")
+    return run(task, meta)
 }
 
+
+fun Workspace.run(task: String, target: String) =
+    tasks[task]?.let { run(it, target) } ?: error("Task with name $task not found")
+
+fun Workspace.run(task: String, meta: Meta) =
+    tasks[task]?.let { run(it, meta) } ?: error("Task with name $task not found")
+
+fun Workspace.run(task: String, block: MetaBuilder.() -> Unit = {}) =
+    run(task, buildMeta(block))
diff --git a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/WorkspaceBuilder.kt b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/WorkspaceBuilder.kt
index 9f8eb08f..99348682 100644
--- a/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/WorkspaceBuilder.kt
+++ b/dataforge-workspace/src/commonMain/kotlin/hep/dataforge/workspace/WorkspaceBuilder.kt
@@ -2,39 +2,90 @@ package hep.dataforge.workspace
 
 import hep.dataforge.context.Context
 import hep.dataforge.context.ContextBuilder
+import hep.dataforge.data.Data
+import hep.dataforge.data.DataNode
 import hep.dataforge.data.DataTreeBuilder
-import hep.dataforge.meta.Meta
-import hep.dataforge.meta.MetaBuilder
-import hep.dataforge.meta.buildMeta
+import hep.dataforge.meta.*
+import hep.dataforge.names.Name
+import hep.dataforge.names.toName
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.GlobalScope
+
+interface WorkspaceBuilder {
+    val parentContext: Context
+    var context: Context
+    var data: DataTreeBuilder<Any>
+    var tasks: MutableSet<Task<Any>>
+    var targets: MutableMap<String, Meta>
+
+    fun build(): Workspace
+}
+
 
 /**
- * A builder for a workspace
+ * Set the context for future workspcace
  */
-class WorkspaceBuilder(var context: Context) {
-    val data = DataTreeBuilder(Any::class)
-    val targets = HashMap<String, Meta>()
-    val tasks = HashSet<Task<Any>>()
+fun WorkspaceBuilder.context(name: String, block: ContextBuilder.() -> Unit) {
+    context = ContextBuilder(name, parentContext).apply(block).build()
+}
 
-    fun context(action: ContextBuilder.() -> Unit) {
-        this.context = ContextBuilder().apply(action).build()
+fun WorkspaceBuilder.data(name: Name, data: Data<Any>) {
+    this.data[name] = data
+}
+
+fun WorkspaceBuilder.data(name: String, data: Data<Any>) = data(name.toName(), data)
+
+fun WorkspaceBuilder.static(name: Name, data: Any, scope: CoroutineScope = GlobalScope, meta: Meta = EmptyMeta) =
+    data(name, Data.static(scope, data, meta))
+
+fun WorkspaceBuilder.static(name: Name, data: Any, scope: CoroutineScope = GlobalScope, block: MetaBuilder.() -> Unit = {}) =
+    data(name, Data.static(scope, data, buildMeta(block)))
+
+fun WorkspaceBuilder.static(name: String, data: Any, scope: CoroutineScope = GlobalScope, block: MetaBuilder.() -> Unit = {}) =
+    data(name, Data.static(scope, data, buildMeta(block)))
+
+fun WorkspaceBuilder.data(name: Name, node: DataNode<Any>) {
+    this.data[name] = node
+}
+
+fun WorkspaceBuilder.data(name: String, node: DataNode<Any>) = data(name.toName(), node)
+
+fun WorkspaceBuilder.data(name: Name, block: DataTreeBuilder<Any>.() -> Unit) {
+    this.data[name] = DataNode.build(Any::class, block)
+}
+
+fun WorkspaceBuilder.data(name: String, block: DataTreeBuilder<Any>.() -> Unit) = data(name.toName(), block)
+
+fun WorkspaceBuilder.target(name: String, block: MetaBuilder.() -> Unit) {
+    targets[name] = buildMeta(block).seal()
+}
+
+/**
+ * Use existing target as a base updating it with the block
+ */
+fun WorkspaceBuilder.target(name: String, base: String, block: MetaBuilder.() -> Unit) {
+    val parentTarget = targets[base] ?: error("Base target with name $base not found")
+    targets[name] = parentTarget.builder()
+        .apply { "@baseTarget" to base }
+        .apply(block)
+        .seal()
+}
+
+fun WorkspaceBuilder.task(task: Task<Any>) {
+    this.tasks.add(task)
+}
+
+
+/**
+ * A builder for a simple workspace
+ */
+class SimpleWorkspaceBuilder(override val parentContext: Context) : WorkspaceBuilder {
+    override var context: Context = parentContext
+    override var data = DataTreeBuilder(Any::class)
+    override var tasks: MutableSet<Task<Any>> = HashSet()
+    override var targets: MutableMap<String, Meta> = HashMap()
+
+    override fun build(): SimpleWorkspace {
+        return SimpleWorkspace(context, data.build(), targets, tasks)
     }
-
-    fun data(action: DataTreeBuilder<Any>.() -> Unit) = data.apply(action)
-
-    fun target(name: String, meta: Meta) {
-        targets[name] = meta
-    }
-
-    fun target(name: String, action: MetaBuilder.() -> Unit) = target(name, buildMeta(action))
-
-    fun task(task: Task<*>) {
-        tasks.add(task)
-    }
-
-    fun build(): Workspace = SimpleWorkspace(
-        context,
-        data.build(),
-        targets,
-        tasks
-    )
 }
\ No newline at end of file
diff --git a/dataforge-workspace/src/jvmMain/kotlin/hep/dataforge/workspace/GenericTask.kt b/dataforge-workspace/src/jvmMain/kotlin/hep/dataforge/workspace/GenericTask.kt
index e6ecf690..e2236c6a 100644
--- a/dataforge-workspace/src/jvmMain/kotlin/hep/dataforge/workspace/GenericTask.kt
+++ b/dataforge-workspace/src/jvmMain/kotlin/hep/dataforge/workspace/GenericTask.kt
@@ -75,13 +75,13 @@ class KTaskBuilder(val name: String) {
         val to: String = "",
         val transform: Workspace.() -> TaskModel.(DataNode<Any>) -> DataNode<Any>
     ) {
-        operator fun Workspace.invoke(model: TaskModel, node: DataNode<Any>): DataNode<Any>? {
+        operator fun invoke(workspace: Workspace, model: TaskModel, node: DataNode<Any>): DataNode<Any>? {
             val localData = if (from.isEmpty()) {
                 node
             } else {
                 node.getNode(from.toName()) ?: return null
             }
-            return transform(this).invoke(model, localData)
+            return transform(workspace).invoke(model, localData)
         }
     }
 
@@ -91,14 +91,18 @@ class KTaskBuilder(val name: String) {
         this.modelTransform = modelTransform
     }
 
+    //class TaskEnv(val workspace: Workspace, val model: TaskModel)
+
     fun <T : Any> transform(
         inputType: KClass<T>,
         from: String = "",
         to: String = "",
         transform: Workspace.() -> TaskModel.(DataNode<T>) -> DataNode<Any>
     ) {
-        dataTransforms += DataTransformation(from, to) { data: DataNode<Any> ->
-            transform.invoke(this, data.cast(inputType))
+        dataTransforms += DataTransformation(from, to) {
+            { data: DataNode<Any> ->
+                transform().invoke(this, data.cast(inputType))
+            }
         }
     }
 
@@ -113,77 +117,89 @@ class KTaskBuilder(val name: String) {
     /**
      * Perform given action on data elements in `from` node in input and put the result to `to` node
      */
-    inline fun <reified T : Any, reified R : Any> action(action: Action<T, R>, from: String = "", to: String = "") {
-        transform(from, to) { data: DataNode<T> ->
-            action(data, model.meta)
+    inline fun <reified T : Any, reified R : Any> action(
+        from: String = "",
+        to: String = "",
+        crossinline actionBuilder: Workspace.() -> Action<T, R>
+    ) {
+        transform(from, to) {
+            val res: TaskModel.(DataNode<T>) -> DataNode<Any> = { data: DataNode<T> ->
+                actionBuilder().invoke(data, meta)
+            }
+            res
         }
     }
 
     inline fun <reified T : Any, reified R : Any> pipeAction(
         from: String = "",
         to: String = "",
-        noinline action: PipeBuilder<T, R>.() -> Unit
+        crossinline block: Workspace.() -> PipeBuilder<T, R>.() -> Unit
     ) {
-        val pipe: Action<T, R> = PipeAction(
-            inputType = T::class,
-            outputType = R::class,
-            block = action
-        )
-        action(pipe, from, to);
+        action(from, to) {
+            PipeAction(
+                inputType = T::class,
+                outputType = R::class,
+                block = block()
+            )
+        }
     }
 
     inline fun <reified T : Any, reified R : Any> pipe(
         from: String = "",
         to: String = "",
-        noinline action: suspend ActionEnv.(T) -> R
+        crossinline block: Workspace.() -> suspend ActionEnv.(T) -> R
     ) {
-        val pipe: Action<T, R> = PipeAction(
-            inputType = T::class,
-            outputType = R::class
-        ) { result(action) }
-        action(pipe, from, to);
+        action(from, to) {
+            PipeAction(
+                inputType = T::class,
+                outputType = R::class
+            ) { result(block()) }
+        }
     }
 
 
     inline fun <reified T : Any, reified R : Any> joinAction(
         from: String = "",
         to: String = "",
-        noinline action: JoinGroupBuilder<T, R>.() -> Unit
+        crossinline block: Workspace.() -> JoinGroupBuilder<T, R>.() -> Unit
     ) {
-        val join: Action<T, R> = JoinAction(
-            inputType = T::class,
-            outputType = R::class,
-            action = action
-        )
-        action(join, from, to);
+        action(from, to) {
+            JoinAction(
+                inputType = T::class,
+                outputType = R::class,
+                action = block()
+            )
+        }
     }
 
     inline fun <reified T : Any, reified R : Any> join(
         from: String = "",
         to: String = "",
-        noinline action: suspend ActionEnv.(Map<Name, T>) -> R
+        crossinline block: Workspace.() -> suspend ActionEnv.(Map<Name, T>) -> R
     ) {
-        val join: Action<T, R> = JoinAction(
-            inputType = T::class,
-            outputType = R::class,
-            action = {
-                result(actionMeta[TaskModel.MODEL_TARGET_KEY]?.string ?: "@anonimous", action)
-            }
-        )
-        action(join, from, to);
+        action(from, to) {
+            JoinAction(
+                inputType = T::class,
+                outputType = R::class,
+                action = {
+                    result(actionMeta[TaskModel.MODEL_TARGET_KEY]?.string ?: "@anonimous", block())
+                }
+            )
+        }
     }
 
     inline fun <reified T : Any, reified R : Any> splitAction(
         from: String = "",
         to: String = "",
-        noinline action: SplitBuilder<T, R>.() -> Unit
+        crossinline block: Workspace.() -> SplitBuilder<T, R>.() -> Unit
     ) {
-        val split: Action<T, R> = SplitAction(
-            inputType = T::class,
-            outputType = R::class,
-            action = action
-        )
-        action(split, from, to);
+        action(from, to) {
+            SplitAction(
+                inputType = T::class,
+                outputType = R::class,
+                action = block()
+            )
+        }
     }
 
     /**
@@ -193,22 +209,24 @@ class KTaskBuilder(val name: String) {
         this.descriptor = NodeDescriptor.build(transform)
     }
 
-    fun build(): GenericTask<Any> {
-        val transform: Workspace.() -> TaskModel.(DataNode<Any>) -> DataNode<Any> = {
+    fun build(): GenericTask<Any> =
+        GenericTask(name, Any::class, descriptor ?: NodeDescriptor.empty(), modelTransform) {
+            val workspace = this
             { data ->
+                val model = this
                 if (dataTransforms.isEmpty()) {
                     //return data node as is
                     logger.warn("No transformation present, returning input data")
                     data
                 } else {
                     val builder = DataTreeBuilder(Any::class)
-                    dataTransforms.forEach { transform ->
-                        val res = transform(this, data)
+                    dataTransforms.forEach { transformation ->
+                        val res = transformation(workspace, model, data)
                         if (res != null) {
-                            if (transform.to.isEmpty()) {
+                            if (transformation.to.isEmpty()) {
                                 builder.update(res)
                             } else {
-                                builder[transform.to.toName()] = res
+                                builder[transformation.to.toName()] = res
                             }
                         }
                     }
@@ -216,10 +234,12 @@ class KTaskBuilder(val name: String) {
                 }
             }
         }
-        return GenericTask(name, Any::class, descriptor ?: NodeDescriptor.empty(), modelTransform, transform);
-    }
 }
 
 fun task(name: String, builder: KTaskBuilder.() -> Unit): GenericTask<Any> {
-    return KTaskBuilder(name).apply(builder).build();
+    return KTaskBuilder(name).apply(builder).build()
+}
+
+fun WorkspaceBuilder.task(name: String, builder: KTaskBuilder.() -> Unit) {
+    task(KTaskBuilder(name).apply(builder).build())
 }
\ No newline at end of file
diff --git a/dataforge-workspace/src/jvmTest/kotlin/hep/dataforge/workspace/SimpleWorkspaceTest.kt b/dataforge-workspace/src/jvmTest/kotlin/hep/dataforge/workspace/SimpleWorkspaceTest.kt
new file mode 100644
index 00000000..62b72505
--- /dev/null
+++ b/dataforge-workspace/src/jvmTest/kotlin/hep/dataforge/workspace/SimpleWorkspaceTest.kt
@@ -0,0 +1,48 @@
+package hep.dataforge.workspace
+
+import hep.dataforge.data.first
+import hep.dataforge.data.get
+import org.junit.Test
+import kotlin.test.assertEquals
+
+
+class SimpleWorkspaceTest {
+    val workspace = SimpleWorkspace.build {
+
+        repeat(100) {
+            static("myData[$it]", it)
+        }
+
+
+        task("square") {
+            model {
+                allData()
+            }
+            pipe<Int, Int> {
+                { data ->
+                    context.logger.info { "Starting square on $data" }
+                    data * data
+                }
+            }
+        }
+
+        task("sum"){
+            model {
+                dependsOn("square")
+            }
+            join<Int,Int> {
+                { data ->
+                    context.logger.info { "Starting sum" }
+                    data.values.sum()
+                }
+            }
+        }
+    }
+
+    @Test
+    fun testWorkspace(){
+        val node = workspace.run("sum")
+        val res = node.first()
+        assertEquals(328350, res.get())
+    }
+}
\ No newline at end of file