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+# E-CORD Developer Guid
+
+As for other CORD profiles, E-CORD can also be deployed in environments other than physical PODs. This creates a more convenient environment for developers, using less resources and providing a faster development life-cycle.
+
+Two environments are available, depending on your needs:
+* Local Developer Machine: a development environment running directly on your laptop
+* CORD-in-a-Box
+
+## Mock/local Machine Development Environment
+
+To understand what a local development environment is, what it can help you with, and how to build it, look at [this page](https://guide.opencord.org/xos/dev/workflow_mock_single.html).
+
+When it’s time to specify the PODCONFIG file, use
+* *ecord-mock.yml* for local sites, instead of the default value (rcord-mock.yml)
+* *ecord-global-single.yml* to mock global nodes, instead of the default value (rcord-mock.yml)
+
+## CORD-in-a-Box (CiaB) development
+
+To understand what CiaB is and what it can help you with, look [here](https://guide.opencord.org/xos/dev/workflow_pod.html).
+
+To build E-CORD CiaB, follow the steps [here](https://guide.opencord.org/install_virtual.html).
+
+When it’s time to specify the PODCONFIG file, use
+* *ecord-virtual.yml* for local sites, instead of the default value (rcord-virtual.yml)
+* *ecord-global-single.yml* to deploy global nodes, instead of the default value (rcord-virtual.yml)
+
+**NOTE** When inspecting CiaB you will also need, on the global node to use 
+
+```
+export VAGRANT_CWD=~/cord/build/scenarios/single
+```
+
+instead of 
+
+```
+export VAGRANT_CWD=~/cord/build/scenarios/cord
+```
+
+More detailed instructions on how to develop and deploy using CiaB can be found in the troubleshooting [guide](https://guide.opencord.org/troubleshooting.html).
+
+## Run an E-CORD test subscriber
+When using local PODs, you can emulate E-CORD test subscribers, doing the following.
+
+* ssh into the the head node
+* ```cd /opt/cord/build/platform-install```
+* ```ansible-playbook -i inventory/head-localhost --extra-vars "@/opt/cord_profile/genconfig/config.yml" ecord-test-subscriber-playbook.yml```
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