**********\* Design documents**********\*

This section contains all the Geppetto design documents. The links below
will open a Lucid Chart page where the different documents are
published. Note that there can be multiple tabs in each document as
shown in the screenshot below:

![image](images/designdocs.png)

All diagrams are constantly evolving (some more than others) to reflect
the latest structure and drive the development of the new features.

**Common**

[Overview](https://www.lucidchart.com/documents/view/4666b850-512b-5184-8a79-20de0a000fde)

[Use
Cases](https://www.lucidchart.com/documents/view/d2b4631c-da56-4b80-9bdb-28c2a6d75c8c)

**Backend**

[Data
Model](https://www.lucidchart.com/documents/view/ae8bd4d6-2226-4aee-9d56-774e323188a6/0)

[Services](https://www.lucidchart.com/documents/view/59066315-98d7-488e-b0cb-18f4c2a4cf65)

[Simulators](https://www.lucidchart.com/documents/view/425b6548-51de-ecd5-827e-073d0a009bd7)

[Simulator pipeline for neuronal
domain](https://www.lucidchart.com/documents/view/441da30d-df65-4001-8809-2a796c80460b)

[Runtime Tree
population](https://www.lucidchart.com/documents/view/7c2e3ca2-f11f-4051-b115-a921cf31863b)

[WebSockets Backend
API](https://www.lucidchart.com/documents/view/4ba99a20-5217-1f53-82f4-4f420a004d28)

[List State
Variables](https://www.lucidchart.com/documents/view/480b4e2c-5237-2970-a88a-249d0a008a0d)

[Watch State
Variables](https://www.lucidchart.com/documents/view/4c3283a4-527c-cb68-bb8d-14570a009e11)

[Simulation
time](https://www.lucidchart.com/documents/view/412c0624-52f7-032a-a083-22670a00c5f0)

[External process from
OSGi](https://www.lucidchart.com/documents/view/bc5b6fe7-0722-4055-b557-e95b9511f85e)

[Geppetto API Design Draft
(Old)](https://www.lucidchart.com/documents/edit/48520f68-5227-2452-a0e1-2db80a004e94)

[Geppetto Observer
Mode](https://www.lucidchart.com/documents/view/4a8ed5f0-51c4-ccda-9e42-26a20a004538)

*Multiple Aspect Integration*

[Design (in
progress)](https://www.lucidchart.com/documents/view/f66e90ca-9c2d-4f16-9f79-d3f83f5d654a)

[Integration Activity Flow (in
progress)](https://www.lucidchart.com/documents/view/4b794838-521e-00a5-98c1-649e0a00c900)

**Frontend**

[Geppetto
Frontend](https://www.lucidchart.com/documents/view/675f119b-3923-4ada-bbfb-ea8d571fd01a)

[Events
framework](https://www.lucidchart.com/documents/view/f976cc20-5f29-4c57-9070-e7b97b415521)

[Visualization tree and 3D objects
(Refactoring)](https://www.lucidchart.com/documents/view/c860c683-55c7-4864-b28d-9cdf444b5150)

*Widgets*

[Widgets class
diagram](https://www.lucidchart.com/documents/view/43905d5c-5268-ab60-9ff5-2b5d0a00d543)

[Widgets high level
design](https://www.lucidchart.com/documents/view/40fbf410-5261-c088-85e0-0a190a005787)

[Geppetto Widgets update
mechanism](https://www.lucidchart.com/documents/view/45eb65fc-5293-9670-a570-31530a004b21)

[Widget
diagrams](https://www.lucidchart.com/documents/view/4d3c7284-525a-8e5d-ad6b-4d9c0a00c5b3)

[Install
Widgets](https://www.lucidchart.com/documents/view/b5e67ca3-cde7-4ad9-9810-edeccc9e1548)

*Plotting Widget*

[Plotting Activity
Diagram](https://www.lucidchart.com/documents/view/4f06a058-5251-8aa8-878e-3a890a0050f4)

[Plotting Class
Diagram](https://www.lucidchart.com/documents/view/4959c19c-5251-7c38-8d03-1fb70a0050f4)