diff --git a/perform-problem-api/04-problem-processes/README.md b/perform-problem-api/04-problem-processes/README.md
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+Perform 2018 - Sample 4
+
+This example is an extension of [Sample 3](../../perform-topology-api/03-topology-processes).
+
+Processes involved in ongoing (and for simplicity reasons also resolved) problems are colored in red.
+The Dynatrace Problem API publishes the necessary REST calls that allow for querying for the problem feed, problem details and eventually the events containing the entities involved in the problem.
+
+To use this example with your own Dynatrace environment, just replace the placeholder with your own environment id and API key.
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diff --git a/perform-problem-api/04-problem-processes/problem-process-map.html b/perform-problem-api/04-problem-processes/problem-process-map.html
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+++ b/perform-problem-api/04-problem-processes/problem-process-map.html
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+<html>
+<head>
+<script src="https://rawgit.com/Linkurious/linkurious.js/develop/dist/sigma.min.js"></script>
+<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
+<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/sigma.js/1.1.0/plugins/sigma.layout.forceAtlas2.min.js"></script>
+<script>
+var YOUR_ENV_ID = 'ENTER YOUR ENVIRONMENT ID HERE',
+	YOUR_API_TOKEN = 'ENTER YOUR API TOKEN HERE',
+    CLUSTER = 'live.dynatrace.com',
+    i,
+    s,
+    g = {
+      nodes: [],
+      edges: []
+    };
+	
+	nodeIds = {};
+	erronous_nodeIds = {};
+	
+	function init() {
+		$.ajax({
+			url: "https://" + YOUR_ENV_ID + "." + CLUSTER + "/api/v1/problem/feed/?relativeTime=day",
+			type: 'get',
+			headers: { 'Authorization': ' Api-Token ' + YOUR_API_TOKEN },
+			success: function(data) {
+				for (var i = 0; i < data.result.problems.length; i++) {
+					var problem = data.result.problems[i];
+					$.ajax({
+						url: "https://" + YOUR_ENV_ID + "." + CLUSTER + "/api/v1/problem/details/" + problem.id,
+						type: 'get',
+						headers: { 'Authorization': ' Api-Token ' + YOUR_API_TOKEN },
+						success: function(detail_data) {
+							if (detail_data == undefined) return;
+							if (!detail_data.result == undefined) return;
+							if (!detail_data.result.rankedEvent == undefined) return;
+							for (var j = 0; j < detail_data.result.rankedEvents.length; j++) {
+								var rankedEvent = detail_data.result.rankedEvents[j];
+								if (rankedEvent.entityId != undefined) {
+									erronous_nodeIds[rankedEvent.entityId] = true;
+								}
+							}
+						}
+					});
+				}
+				$.ajax({
+					url: "https://" + YOUR_ENV_ID + "." + CLUSTER + "/api/v1/entity/infrastructure/processes",
+					type: 'get',
+					headers: { 'Authorization': ' Api-Token ' + YOUR_API_TOKEN },
+					success: function(service_data) {
+						var i = 0;
+						// two passes, first one to create all service nodes
+						service_data.forEach(function(entry) {
+							//console.log(entry);
+							var node = {
+								id: entry.entityId,
+								label: entry.displayName,
+								x: Math.random(),
+								y: Math.random(),
+								size: 200,
+								color: '#666'
+							};
+							if (erronous_nodeIds[entry.entityId])
+								node.color = '#FF0000';
+							g.nodes.push(node);
+							nodeIds[entry.entityId] = true;
+						});
+						// second one to add only edges to existing service nodes 
+						service_data.forEach(function(entry) {
+							var callRel = entry.toRelationships.isNetworkClientOf;
+							if(callRel) {
+								callRel.forEach(function(toId) {
+									if(nodeIds[toId]) {
+										g.edges.push({
+											id: 'e' + i,
+											source: entry.entityId,
+											target: toId,
+											size: 100,
+											color: '#ccc'
+										});
+										i++;
+									} 	
+								});
+							}
+						});
+			
+						// instantiate sigma
+						s = new sigma({
+							graph: g,
+							container: 'graph-container'
+						});
+			
+						// Start the ForceAtlas2 algorithm:
+						s.startForceAtlas2({worker: true, barnesHutOptimize: false});
+					}
+				});
+			}
+		});
+	}
+</script>
+</head>
+<body onload="init();">
+	<div id="container">
+	  <style>
+		#graph-container {
+		  top: 0;
+		  bottom: 0;
+		  left: 0;
+		  right: 0;
+		  position: absolute;
+		}
+	  </style>
+	  <div id="graph-container"></div>
+	</div>
+</html>
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diff --git a/perform-topology-api/01-topology-services/README.md b/perform-topology-api/01-topology-services/README.md
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+++ b/perform-topology-api/01-topology-services/README.md
@@ -0,0 +1,10 @@
+Perform 2018 - Sample 1
+
+This example is a slightly modified version of the [topology-smartscape](https://github.com/Dynatrace/dynatrace-api/tree/master/topology-smartscape) example.
+
+It represents a base solution that is able to visualize a service map. The required data is getting queried from via Dynatrace Topology and Smartscape API via REST Calls.
+Visualization is taken care of by Sigma.js.
+
+Clicking on one of the nodes creates an alert box.
+
+To use this example with your own Dynatrace environment, just replace the placeholder with your own environment id and API key. 
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diff --git a/perform-topology-api/01-topology-services/service-map.html b/perform-topology-api/01-topology-services/service-map.html
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+++ b/perform-topology-api/01-topology-services/service-map.html
@@ -0,0 +1,89 @@
+<html>
+<head>
+<script src="https://rawgit.com/Linkurious/linkurious.js/develop/dist/sigma.min.js"></script>
+<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
+<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/sigma.js/1.1.0/plugins/sigma.layout.forceAtlas2.min.js"></script>
+<script>
+var YOUR_ENV_ID = 'ENTER YOUR ENVIRONMENT ID HERE',
+	YOUR_API_TOKEN = 'ENTER YOUR API TOKEN HERE',
+    CLUSTER = 'live.dynatrace.com',
+    i,
+    s,
+    g = {
+      nodes: [],
+      edges: []
+    };
+	
+	nodeIds = {};
+	
+	function init() {
+		$.ajax({
+			url: "https://" + YOUR_ENV_ID + "." + CLUSTER + "/api/v1/entity/services",
+			type: 'get',
+			headers: { 'Authorization': ' Api-Token ' + YOUR_API_TOKEN },
+			success: function(service_data) {
+				var i = 0;
+				// two passes, first one to create all service nodes
+				service_data.forEach(function(entry) {
+					//console.log(entry);
+					var node = {
+						id: entry.entityId,
+						label: entry.displayName,
+						x: Math.random(),
+						y: Math.random(),
+						size: 200,
+						color: '#666'
+					};
+					g.nodes.push(node);
+					nodeIds[entry.entityId] = true;
+				});
+				// second one to add only edges to existing service nodes 
+				service_data.forEach(function(entry) {
+					var callRel = entry.toRelationships.calls;
+					if(callRel) {
+						callRel.forEach(function(toId) {
+							if(nodeIds[toId]) {
+								g.edges.push({
+									id: 'e' + i,
+									source: entry.entityId,
+									target: toId,
+									size: 100,
+									color: '#ccc'
+								});
+								i++;
+							} 	
+						});
+					}
+				});
+	
+				// instantiate sigma
+				s = new sigma({
+					graph: g,
+					container: 'graph-container'
+				});
+				
+				s.bind('clickNode', function(e) {
+					alert(e.data.node.id + " clicked");
+				});
+	
+				// Start the ForceAtlas2 algorithm:
+				s.startForceAtlas2({worker: true, barnesHutOptimize: false});
+			}
+		});
+	}
+</script>
+</head>
+<body onload="init();">
+	<div id="container">
+	  <style>
+		#graph-container {
+		  top: 0;
+		  bottom: 0;
+		  left: 0;
+		  right: 0;
+		  position: absolute;
+		}
+	  </style>
+	  <div id="graph-container"></div>
+	</div>
+</html>
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diff --git a/perform-topology-api/02-topology-service-tagging/README.md b/perform-topology-api/02-topology-service-tagging/README.md
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index 0000000..9649a71
--- /dev/null
+++ b/perform-topology-api/02-topology-service-tagging/README.md
@@ -0,0 +1,7 @@
+Perform 2018 - Sample 2
+
+This example extends [Sample 1](../01-topology-services) by adding a custom tag to the service represented by a node when clicked.
+
+Adding a custom tag to an entity is possible by sending a POST request via REST call to the Dynatrace Topology and Smartscape API.
+
+To use this example with your own Dynatrace environment, just replace the placeholder with your own environment id and API key.
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diff --git a/perform-topology-api/02-topology-service-tagging/service-tagging.html b/perform-topology-api/02-topology-service-tagging/service-tagging.html
new file mode 100644
index 0000000..cbab8d8
--- /dev/null
+++ b/perform-topology-api/02-topology-service-tagging/service-tagging.html
@@ -0,0 +1,95 @@
+<html>
+<head>
+<script src="https://rawgit.com/Linkurious/linkurious.js/develop/dist/sigma.min.js"></script>
+<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
+<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/sigma.js/1.1.0/plugins/sigma.layout.forceAtlas2.min.js"></script>
+<script>
+var YOUR_ENV_ID = 'ENTER YOUR ENVIRONMENT ID HERE',
+	YOUR_API_TOKEN = 'ENTER YOUR API TOKEN HERE',
+    CLUSTER = 'live.dynatrace.com',
+    i,
+    s,
+    g = {
+      nodes: [],
+      edges: []
+    };
+	
+	nodeIds = {};
+	
+	function init() {
+		$.ajax({
+			url: "https://" + YOUR_ENV_ID + "." + CLUSTER + "/api/v1/entity/services",
+			type: 'get',
+			headers: { 'Authorization': ' Api-Token ' + YOUR_API_TOKEN },
+			success: function(service_data) {
+				var i = 0;
+				// two passes, first one to create all service nodes
+				service_data.forEach(function(entry) {
+					//console.log(entry);
+					var node = {
+						id: entry.entityId,
+						label: entry.displayName,
+						x: Math.random(),
+						y: Math.random(),
+						size: 200,
+						color: '#666'
+					};
+					g.nodes.push(node);
+					nodeIds[entry.entityId] = true;
+				});
+				// second one to add only edges to existing service nodes 
+				service_data.forEach(function(entry) {
+					var callRel = entry.toRelationships.calls;
+					if(callRel) {
+						callRel.forEach(function(toId) {
+							if(nodeIds[toId]) {
+								g.edges.push({
+									id: 'e' + i,
+									source: entry.entityId,
+									target: toId,
+									size: 100,
+									color: '#ccc'
+								});
+								i++;
+							} 	
+						});
+					}
+				});
+	
+				// instantiate sigma
+				s = new sigma({
+					graph: g,
+					container: 'graph-container'
+				});
+				
+				s.bind('clickNode', function(e) {
+					$.ajax({
+						url: "https://" + YOUR_ENV_ID + "." + CLUSTER + "/api/v1/entity/services/" + e.data.node.id,
+						type: 'post',
+						headers: { 'Authorization': ' Api-Token ' + YOUR_API_TOKEN, "Content-Type": "application/json" },
+						data: '{ "tags": [ "customtagged" ] }',
+						dataType: 'json'
+					});
+				});
+	
+				// Start the ForceAtlas2 algorithm:
+				s.startForceAtlas2({worker: true, barnesHutOptimize: false});
+			}
+		});
+	}
+</script>
+</head>
+<body onload="init();">
+	<div id="container">
+	  <style>
+		#graph-container {
+		  top: 0;
+		  bottom: 0;
+		  left: 0;
+		  right: 0;
+		  position: absolute;
+		}
+	  </style>
+	  <div id="graph-container"></div>
+	</div>
+</html>
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diff --git a/perform-topology-api/03-topology-processes/README.md b/perform-topology-api/03-topology-processes/README.md
new file mode 100644
index 0000000..9e4b2da
--- /dev/null
+++ b/perform-topology-api/03-topology-processes/README.md
@@ -0,0 +1,9 @@
+Perform 2018 - Sample 3
+
+This example is a modification of [Sample 2](../02-topology-service-tagging).
+
+Instead of Services a map of dependent processes is getting displayed.
+The required data is getting queried from via Dynatrace Topology and Smartscape API via REST Calls.
+Visualization is still taken care of by Sigma.js.
+
+To use this example with your own Dynatrace environment, just replace the placeholder with your own environment id and API key.
\ No newline at end of file
diff --git a/perform-topology-api/03-topology-processes/process-map.html b/perform-topology-api/03-topology-processes/process-map.html
new file mode 100644
index 0000000..66b201a
--- /dev/null
+++ b/perform-topology-api/03-topology-processes/process-map.html
@@ -0,0 +1,89 @@
+<html>
+<head>
+<script src="https://rawgit.com/Linkurious/linkurious.js/develop/dist/sigma.min.js"></script>
+<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
+<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/sigma.js/1.1.0/plugins/sigma.layout.forceAtlas2.min.js"></script>
+<script>
+var YOUR_ENV_ID = 'ENTER YOUR ENVIRONMENT ID HERE',
+	YOUR_API_TOKEN = 'ENTER YOUR API TOKEN HERE',
+    CLUSTER = 'live.dynatrace.com',
+    i,
+    s,
+    g = {
+      nodes: [],
+      edges: []
+    };
+	
+	nodeIds = {};
+	
+	function init() {
+		$.ajax({
+			url: "https://" + YOUR_ENV_ID + "." + CLUSTER + "/api/v1/entity/infrastructure/processes",
+			type: 'get',
+			headers: { 'Authorization': ' Api-Token ' + YOUR_API_TOKEN },
+			success: function(service_data) {
+				var i = 0;
+				// two passes, first one to create all service nodes
+				service_data.forEach(function(entry) {
+					//console.log(entry);
+					var node = {
+						id: entry.entityId,
+						label: entry.displayName,
+						x: Math.random(),
+						y: Math.random(),
+						size: 200,
+						color: '#666'
+					};
+					g.nodes.push(node);
+					nodeIds[entry.entityId] = true;
+				});
+				// second one to add only edges to existing service nodes 
+				service_data.forEach(function(entry) {
+					var callRel = entry.toRelationships.isNetworkClientOf;
+					if(callRel) {
+						callRel.forEach(function(toId) {
+							if(nodeIds[toId]) {
+								g.edges.push({
+									id: 'e' + i,
+									source: entry.entityId,
+									target: toId,
+									size: 100,
+									color: '#ccc'
+								});
+								i++;
+							} 	
+						});
+					}
+				});
+	
+				// instantiate sigma
+				s = new sigma({
+					graph: g,
+					container: 'graph-container'
+				});
+				
+				s.bind('clickNode', function(e) {
+					alert(e.data.node.id + " clicked");
+				});
+	
+				// Start the ForceAtlas2 algorithm:
+				s.startForceAtlas2({worker: true, barnesHutOptimize: false});
+			}
+		});
+	}
+</script>
+</head>
+<body onload="init();">
+	<div id="container">
+	  <style>
+		#graph-container {
+		  top: 0;
+		  bottom: 0;
+		  left: 0;
+		  right: 0;
+		  position: absolute;
+		}
+	  </style>
+	  <div id="graph-container"></div>
+	</div>
+</html>
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diff --git a/problem-api/README.md b/problem-api/README.md
deleted file mode 100644
index e69de29..0000000
