diff --git a/docs/background.html b/docs/background.html
index f3a4fc02..df6781bd 100644
--- a/docs/background.html
+++ b/docs/background.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/dataModelEditing.html b/docs/dataModelEditing.html
index 37c4bb2c..ed1bcd0a 100644
--- a/docs/dataModelEditing.html
+++ b/docs/dataModelEditing.html
@@ -380,7 +380,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/datamodels.html b/docs/datamodels.html
index 847dbac0..15ccacc6 100644
--- a/docs/datamodels.html
+++ b/docs/datamodels.html
@@ -380,7 +380,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/documentationEditing.html b/docs/documentationEditing.html
index 13931d9d..afa63e18 100644
--- a/docs/documentationEditing.html
+++ b/docs/documentationEditing.html
@@ -380,7 +380,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/framework.html b/docs/framework-overview.html
similarity index 78%
rename from docs/framework.html
rename to docs/framework-overview.html
index 2545132f..3484bc5e 100644
--- a/docs/framework.html
+++ b/docs/framework-overview.html
@@ -11,7 +11,7 @@
 
 
 
-<title>framework.knit</title>
+<title>framework-overview.knit</title>
 
 <script src="site_libs/header-attrs-2.15/header-attrs.js"></script>
 <script src="site_libs/jquery-3.6.0/jquery-3.6.0.min.js"></script>
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 </head>
 
@@ -311,16 +239,6 @@
 <div class="container-fluid main-container">
 
 
-<!-- setup 3col/9col grid for toc_float and main content  -->
-<div class="row">
-<div class="col-xs-12 col-sm-4 col-md-3">
-<div id="TOC" class="tocify">
-</div>
-</div>
-
-<div class="toc-content col-xs-12 col-sm-8 col-md-9">
-
-
 
 
 <div class="navbar navbar-default  navbar-fixed-top" role="navigation">
@@ -386,7 +304,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
@@ -477,15 +395,69 @@ <h1 class="title toc-ignore"><div>
 </div>
 
 
-<div id="framework" class="section level1">
-<h1><strong>Framework</strong></h1>
-<p>&lt; Diagram &gt;</p>
+<div id="gaia-framework-overview" class="section level1">
+<h1><strong>Gaia Framework Overview</strong></h1>
+<p>The <strong>Gaia Framework</strong> is divided into three main
+parts:</p>
+<hr />
+<p><br></p>
+<div id="gaia-catalog" class="section level2">
+<h2><a href="gaia-catalog.html">Gaia Catalog</a></h2>
+<p>A readily-extensible catalog of source datasets. Gaia Catalog
+contains metadata for public geospatial datasets. Descriptive metadata
+facilitates search and discovery of relevant datasets. Functional
+metadata (machine-actionable instructions) enables automated retrieval,
+extraction, transformation, and loading of public datasets and their
+constituent variables.</p>
+<hr />
+<p><br></p>
+</div>
+<div id="gaia-core" class="section level2">
+<h2><a href="gaia-core.html">Gaia Core</a></h2>
+<p>Gaia Core is the central functionality and storage of Gaia and itself
+consists of two main features: a <strong>staging database</strong> and
+an <strong>execution engine</strong>.</p>
+<p>The staging database is a PostGIS database with a replica copy of the
+Gaia Catalog installed in a schema named “backbone”. In this database,
+public datasets that are registered in Gaia Catalog can be “staged”:
+transformed and then loaded as tables in a standardized
+Entity-Attribute-Value format. Other geospatial data, such as geocoded
+addresses, can also be loaded into the staging database for use in
+conjunction with the staged data.</p>
+<p>All operations on the staging database (creating tables, inserting
+data, accessing data, etc.) are performed through the “execution
+engine”. The execution engine can be any software package (e.g. R
+package, Python library, CLI) that connects to the database and
+functionalizes the logic required to write or read data to and from the
+standard format. Currently, there is one execution engine: an R Package
+named <a href="gaiaCore/index.html">gaiaCore</a>.</p>
+<hr />
+<p><br></p>
+</div>
+<div id="extensions" class="section level2">
+<h2><a href="gaia-extensions.html">Extensions</a></h2>
+<p>Any functionality that falls outside of Gaia Core’s scope (basic
+Create, Read, Update and Delete operations) can be encapsulated in an
+Extension. An extension can be thought of as a software package or
+library that interfaces with Gaia Core (through the execution engine)
+that collects similar functionality. Extensions can be grouped by the
+communities they serve or by the functionality they provide. For
+example, the <a href="gaia-extensions-ohdsi.html">gaiaOHDSI
+extension</a> is built to provide members of the OHDSI community useful
+connectors between Gaia Core and an OMOP database and various OHDSI
+tools. On the other hand, general (hypothetical) extensions like gaiaVis
+or gaiaLayer provide visualization and layer building software to Gaia
+Core, respectively.</p>
+<hr />
+<p><br></p>
+<div>
+<img src="images/framework_overview.png"></img>
+</div>
+</div>
 </div>
 
 
 
-</div>
-</div>
 
 </div>
 
@@ -518,35 +490,6 @@ <h1><strong>Framework</strong></h1>
 
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diff --git a/docs/gaia-catalog.html b/docs/gaia-catalog.html
index 58f17f23..5a4ee3a4 100644
--- a/docs/gaia-catalog.html
+++ b/docs/gaia-catalog.html
@@ -29,9 +29,6 @@
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@@ -233,75 +230,6 @@
 
 
 
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@@ -311,16 +239,6 @@
 <div class="container-fluid main-container">
 
 
-<!-- setup 3col/9col grid for toc_float and main content  -->
-<div class="row">
-<div class="col-xs-12 col-sm-4 col-md-3">
-<div id="TOC" class="tocify">
-</div>
-</div>
-
-<div class="toc-content col-xs-12 col-sm-8 col-md-9">
-
-
 
 
 <div class="navbar navbar-default  navbar-fixed-top" role="navigation">
@@ -386,7 +304,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
@@ -479,12 +397,38 @@ <h1 class="title toc-ignore"><div>
 
 <div id="gaia-catalog" class="section level1">
 <h1><strong>Gaia Catalog</strong></h1>
+<div id="description" class="section level2">
+<h2>Description</h2>
+<p>A readily-extensible catalog of source datasets. Gaia Catalog
+contains metadata for public geospatial datasets. Descriptive metadata
+facilitates search and discovery of relevant datasets. Functional
+metadata (machine-actionable instructions) enables automated retrieval,
+extraction, transformation, and loading of public datasets and their
+constituent variables.</p>
+</div>
+<div id="scope" class="section level2">
+<h2>Scope</h2>
+<p>The <strong>ultimate vision</strong> of Gaia Catalog is a web-hosted
+repository where users can access and contribute functional and
+descriptive metadata for public datasets to facilitate their standard
+use across networks and beyond. <strong>Currently</strong>, the data for
+still-developing catalog is contained in the OHDSI GIS WG GitHub
+Repository:</p>
+<p>The <a
+href="https://github.com/OHDSI/GIS/blob/main/inst/csv/data_source.csv">data_source.csv</a>
+file contains information on public datasets.</p>
+<p>The <a
+href="https://github.com/OHDSI/GIS/blob/main/inst/csv/variable_source.csv">variable_source.csv</a>
+file contains information on the variables contained in those
+datasets.</p>
+<p>To start using the Gaia Catalog see the article <a
+href="get-started.html"><strong>Getting Started with
+Gaia</strong></a>.</p>
+</div>
 </div>
 
 
 
-</div>
-</div>
 
 </div>
 
@@ -517,35 +461,6 @@ <h1><strong>Gaia Catalog</strong></h1>
 
 <!-- code folding -->
 
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diff --git a/docs/gaia-core.html b/docs/gaia-core.html
index b3ea38c7..eed154fd 100644
--- a/docs/gaia-core.html
+++ b/docs/gaia-core.html
@@ -29,9 +29,6 @@
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@@ -233,75 +230,6 @@
 
 
 
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@@ -311,16 +239,6 @@
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-<div class="col-xs-12 col-sm-4 col-md-3">
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-</div>
-
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-
-
 
 
 <div class="navbar navbar-default  navbar-fixed-top" role="navigation">
@@ -386,7 +304,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
@@ -479,14 +397,43 @@ <h1 class="title toc-ignore"><div>
 
 <div id="gaiacore" class="section level1">
 <h1><strong>GaiaCore</strong></h1>
-<p>Documentation: <a href="gaiaCore/index.html">GaiaCore (R
-Package)</a></p>
+<div id="description" class="section level2">
+<h2>Description</h2>
+<p>Gaia Core is the central functionality and storage of Gaia and
+consists of two main features: a <strong>staging database</strong> and
+an <strong>execution engine</strong>.</p>
+<p>The staging database is a PostGIS database with a replica copy of the
+Gaia Catalog installed in a schema named “backbone”. In this database,
+public datasets that are registered in Gaia Catalog can be “staged”:
+transformed and then loaded as tables in a standardized
+Entity-Attribute-Value format. Other geospatial data, such as geocoded
+addresses, can also be loaded into the staging database for use in
+conjunction with the staged data.</p>
+<p>All operations on the staging database (creating tables, inserting
+data, accessing data, etc.) are performed through the “execution
+engine”. The execution engine can be any software package (e.g. R
+package, Python library, CLI) that connects to the database and
+functionalizes the logic required to write or read data to and from the
+standard format.</p>
+</div>
+<div id="scope" class="section level2">
+<h2>Scope</h2>
+<p>The <strong>ultimate vision</strong> of Gaia Core is support for
+multiple geospatial databases (particularly cloud-native), as well as
+execution engine interfaces for multiple popular data science
+programming languages (e.g. Python, Julia, R, Bash).
+<strong>Currently</strong>, the staging database has only been
+implemented in PostGIS and the execution engine has only been
+implemented in R.</p>
+</div>
+<div id="documentation" class="section level2">
+<h2>Documentation</h2>
+<p><a href="gaiaCore/index.html">gaiaCore (R Package)</a></p>
+</div>
 </div>
 
 
 
-</div>
-</div>
 
 </div>
 
@@ -519,35 +466,6 @@ <h1><strong>GaiaCore</strong></h1>
 
 <!-- code folding -->
 
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diff --git a/docs/gaia-datamodel-information-flow.html b/docs/gaia-datamodel-information-flow.html
index 9ddcad97..81ca380d 100644
--- a/docs/gaia-datamodel-information-flow.html
+++ b/docs/gaia-datamodel-information-flow.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/gaia-datamodels.html b/docs/gaia-datamodels.html
index 87ccd6c1..79e489a7 100644
--- a/docs/gaia-datamodels.html
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@@ -380,7 +380,7 @@
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-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
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     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
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index cb4274e3..6901e693 100644
--- a/docs/gaia-extensions-ohdsi.html
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@@ -386,7 +386,7 @@
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+      <a href="framework-overview.html">Overview</a>
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     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/gaia-extensions.html b/docs/gaia-extensions.html
index 1fb4e260..eac69ac1 100644
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        code {color: inherit; background-color: rgba(0, 0, 0, 0.04);}
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-<script src="site_libs/jqueryui-1.11.4/jquery-ui.min.js"></script>
-<link href="site_libs/tocify-1.9.1/jquery.tocify.css" rel="stylesheet" />
-<script src="site_libs/tocify-1.9.1/jquery.tocify.js"></script>
 <script src="site_libs/navigation-1.1/tabsets.js"></script>
 <link href="site_libs/highlightjs-9.12.0/default.css" rel="stylesheet" />
 <script src="site_libs/highlightjs-9.12.0/highlight.js"></script>
@@ -233,75 +230,6 @@
 
 
 
-<style type="text/css">
-
-#TOC {
-  margin: 25px 0px 20px 0px;
-}
-@media (max-width: 768px) {
-#TOC {
-  position: relative;
-  width: 100%;
-}
-}
-
-@media print {
-.toc-content {
-  /* see https://github.com/w3c/csswg-drafts/issues/4434 */
-  float: right;
-}
-}
-
-.toc-content {
-  padding-left: 30px;
-  padding-right: 40px;
-}
-
-div.main-container {
-  max-width: 1200px;
-}
-
-div.tocify {
-  width: 20%;
-  max-width: 260px;
-  max-height: 85%;
-}
-
-@media (min-width: 768px) and (max-width: 991px) {
-  div.tocify {
-    width: 25%;
-  }
-}
-
-@media (max-width: 767px) {
-  div.tocify {
-    width: 100%;
-    max-width: none;
-  }
-}
-
-.tocify ul, .tocify li {
-  line-height: 20px;
-}
-
-.tocify-subheader .tocify-item {
-  font-size: 0.90em;
-}
-
-.tocify .list-group-item {
-  border-radius: 0px;
-}
-
-.tocify-subheader {
-  display: inline;
-}
-.tocify-subheader .tocify-item {
-  font-size: 0.95em;
-}
-
-</style>
-
-
 
 </head>
 
@@ -311,16 +239,6 @@
 <div class="container-fluid main-container">
 
 
-<!-- setup 3col/9col grid for toc_float and main content  -->
-<div class="row">
-<div class="col-xs-12 col-sm-4 col-md-3">
-<div id="TOC" class="tocify">
-</div>
-</div>
-
-<div class="toc-content col-xs-12 col-sm-8 col-md-9">
-
-
 
 
 <div class="navbar navbar-default  navbar-fixed-top" role="navigation">
@@ -386,7 +304,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
@@ -479,15 +397,24 @@ <h1 class="title toc-ignore"><div>
 
 <div id="gaia-extensions" class="section level1">
 <h1><strong>Gaia Extensions</strong></h1>
-<div id="overview" class="section level2">
-<h2>Overview</h2>
+<div id="description" class="section level2">
+<h2>Description</h2>
+<p>Any functionality that falls outside of Gaia Core’s scope (basic
+Create, Read, Update and Delete operations) can be encapsulated in an
+Extension. An extension can be thought of as a software package or
+library that interfaces with Gaia Core (through the execution engine)
+that collects similar functionality. Extensions can be grouped by the
+communities they serve or by the functionality they provide. For
+example, the gaiaOHDSI extension is built to provide members of the
+OHDSI community useful connectors between Gaia Core and an OMOP database
+and various OHDSI tools. On the other hand, general (hypothetical)
+extensions like gaiaVis or gaiaLayer provide visualization and layer
+building software to Gaia Core, respectively.</p>
 </div>
 </div>
 
 
 
-</div>
-</div>
 
 </div>
 
@@ -520,35 +447,6 @@ <h2>Overview</h2>
 
 <!-- code folding -->
 
-<script>
-$(document).ready(function ()  {
-
-    // temporarily add toc-ignore selector to headers for the consistency with Pandoc
-    $('.unlisted.unnumbered').addClass('toc-ignore')
-
-    // move toc-ignore selectors from section div to header
-    $('div.section.toc-ignore')
-        .removeClass('toc-ignore')
-        .children('h1,h2,h3,h4,h5').addClass('toc-ignore');
-
-    // establish options
-    var options = {
-      selectors: "h1,h2,h3",
-      theme: "bootstrap3",
-      context: '.toc-content',
-      hashGenerator: function (text) {
-        return text.replace(/[.\\/?&!#<>]/g, '').replace(/\s/g, '_');
-      },
-      ignoreSelector: ".toc-ignore",
-      scrollTo: 0
-    };
-    options.showAndHide = false;
-    options.smoothScroll = true;
-
-    // tocify
-    var toc = $("#TOC").tocify(options).data("toc-tocify");
-});
-</script>
 
 <!-- dynamically load mathjax for compatibility with self-contained -->
 <script>
diff --git a/docs/gaia-goals.html b/docs/gaia-goals.html
index 5a7d8e25..e7cf04bd 100644
--- a/docs/gaia-goals.html
+++ b/docs/gaia-goals.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/gaia-intro.html b/docs/gaia-intro.html
index 960b93ef..a0587727 100644
--- a/docs/gaia-intro.html
+++ b/docs/gaia-intro.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/gaia-principles.html b/docs/gaia-principles.html
index 3b1fbb48..c3d13907 100644
--- a/docs/gaia-principles.html
+++ b/docs/gaia-principles.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/gaia-terminology.html b/docs/gaia-terminology.html
index 0dcad6ca..cbd36b64 100644
--- a/docs/gaia-terminology.html
+++ b/docs/gaia-terminology.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/gaiaCore/pkgdown.yml b/docs/gaiaCore/pkgdown.yml
index 90f8eda1..e703dc7e 100644
--- a/docs/gaiaCore/pkgdown.yml
+++ b/docs/gaiaCore/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: '2.18'
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-02-05T14:43Z
+last_built: 2024-02-05T17:46Z
 
diff --git a/docs/geocodingCohort.html b/docs/geocodingCohort.html
index badda471..d680bc45 100644
--- a/docs/geocodingCohort.html
+++ b/docs/geocodingCohort.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/geocodingFull.html b/docs/geocodingFull.html
index 3a9921f4..4d227c31 100644
--- a/docs/geocodingFull.html
+++ b/docs/geocodingFull.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/get-started.html b/docs/get-started.html
index 58a20028..b06de393 100644
--- a/docs/get-started.html
+++ b/docs/get-started.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/images/framework_overview.png b/docs/images/framework_overview.png
new file mode 100644
index 00000000..13984dae
Binary files /dev/null and b/docs/images/framework_overview.png differ
diff --git a/docs/index.html b/docs/index.html
index 57a88f74..dcbef233 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/local-dataset.html b/docs/local-dataset.html
index e0f68fc8..53589aac 100644
--- a/docs/local-dataset.html
+++ b/docs/local-dataset.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/localDataSource.html b/docs/localDataSource.html
index 0630ede5..5b9eda50 100644
--- a/docs/localDataSource.html
+++ b/docs/localDataSource.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/shareDataSource.html b/docs/shareDataSource.html
index 8f969973..a44fc317 100644
--- a/docs/shareDataSource.html
+++ b/docs/shareDataSource.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/docs/usecase_process.html b/docs/usecase_process.html
index 10320965..963f8160 100644
--- a/docs/usecase_process.html
+++ b/docs/usecase_process.html
@@ -386,7 +386,7 @@
   </a>
   <ul class="dropdown-menu" role="menu">
     <li>
-      <a href="framework.html">Overview &amp; Diagram</a>
+      <a href="framework-overview.html">Overview</a>
     </li>
     <li>
       <a href="gaia-catalog.html">Gaia Catalog</a>
diff --git a/rmd/_site.yml b/rmd/_site.yml
index aaba602c..5bae90d9 100644
--- a/rmd/_site.yml
+++ b/rmd/_site.yml
@@ -36,8 +36,8 @@ navbar:
     - text: "Gaia Framework"
       icon: fa-cubes
       menu:
-        - text: "Overview & Diagram"
-          href: framework.html
+        - text: "Overview"
+          href: framework-overview.html
         - text: "Gaia Catalog"
           href: gaia-catalog.html
         - text: "Gaia Core"
diff --git a/rmd/framework-overview.Rmd b/rmd/framework-overview.Rmd
new file mode 100644
index 00000000..2759d752
--- /dev/null
+++ b/rmd/framework-overview.Rmd
@@ -0,0 +1,45 @@
+---
+title: '<div><img src="ohdsi40x40.png"></img> OHDSI GIS WG</div>'
+output:
+   html_document:
+        toc: FALSE
+---
+
+# **Gaia Framework Overview**
+
+The **Gaia Framework** is divided into three main parts:
+
+---
+
+<br>
+
+## [Gaia Catalog](gaia-catalog.html)
+
+A readily-extensible catalog of source datasets. Gaia Catalog contains metadata for public geospatial datasets. Descriptive metadata facilitates search and discovery of relevant datasets. Functional metadata (machine-actionable instructions) enables automated retrieval, extraction, transformation, and loading of public datasets and their constituent variables.
+
+---
+
+<br>
+
+## [Gaia Core](gaia-core.html)
+
+Gaia Core is the central functionality and storage of Gaia and itself consists of two main features: a **staging database** and an **execution engine**.
+
+The staging database is a PostGIS database with a replica copy of the Gaia Catalog installed in a schema named "backbone". In this database, public datasets that are registered in Gaia Catalog can be "staged": transformed and then loaded as tables in a standardized Entity-Attribute-Value format. Other geospatial data, such as geocoded addresses, can also be loaded into the staging database for use in conjunction with the staged data.
+
+All operations on the staging database (creating tables, inserting data, accessing data, etc.) are performed through the "execution engine". The execution engine can be any software package (e.g. R package, Python library, CLI) that connects to the database and functionalizes the logic required to write or read data to and from the standard format. Currently, there is one execution engine: an R Package named [gaiaCore](gaiaCore/index.html).
+
+---
+
+<br>
+
+
+## [Extensions](gaia-extensions.html)
+
+Any functionality that falls outside of Gaia Core's scope (basic Create, Read, Update and Delete operations) can be encapsulated in an Extension. An extension can be thought of as a software package or library that interfaces with Gaia Core (through the execution engine) that collects similar functionality. Extensions can be grouped by the communities they serve or by the functionality they provide. For example, the [gaiaOHDSI extension](gaia-extensions-ohdsi.html) is built to provide members of the OHDSI community useful connectors between Gaia Core and an OMOP database and various OHDSI tools. On the other hand, general (hypothetical) extensions like gaiaVis or gaiaLayer provide visualization and layer building software to Gaia Core, respectively.
+
+---
+
+<br>
+
+<div><img src="images/framework_overview.png"></img></div>
diff --git a/rmd/framework.Rmd b/rmd/framework.Rmd
deleted file mode 100644
index 8f9e44d8..00000000
--- a/rmd/framework.Rmd
+++ /dev/null
@@ -1,13 +0,0 @@
----
-title: '<div><img src="ohdsi40x40.png"></img> OHDSI GIS WG</div>'
-output:
-   html_document:
-        toc: TRUE
-        toc_depth: 3
-        toc_float:
-          collapsed: false
----
-
-# **Framework**
-
-< Diagram >
\ No newline at end of file
diff --git a/rmd/gaia-catalog.Rmd b/rmd/gaia-catalog.Rmd
index 51c52eef..4e40d488 100644
--- a/rmd/gaia-catalog.Rmd
+++ b/rmd/gaia-catalog.Rmd
@@ -2,10 +2,21 @@
 title: '<div><img src="ohdsi40x40.png"></img> OHDSI GIS WG</div>'
 output:
    html_document:
-        toc: TRUE
-        toc_depth: 3
-        toc_float:
-          collapsed: false
+        toc: FALSE
 ---
 
 # **Gaia Catalog**
+
+## Description
+
+A readily-extensible catalog of source datasets. Gaia Catalog contains metadata for public geospatial datasets. Descriptive metadata facilitates search and discovery of relevant datasets. Functional metadata (machine-actionable instructions) enables automated retrieval, extraction, transformation, and loading of public datasets and their constituent variables.
+
+## Scope
+
+The **ultimate vision** of Gaia Catalog is a web-hosted repository where users can access and contribute functional and descriptive metadata for public datasets to facilitate their standard use across networks and beyond. **Currently**, the data for still-developing catalog is contained in the OHDSI GIS WG GitHub Repository:
+
+The [data_source.csv](https://github.com/OHDSI/GIS/blob/main/inst/csv/data_source.csv) file contains information on public datasets.
+
+The [variable_source.csv](https://github.com/OHDSI/GIS/blob/main/inst/csv/variable_source.csv) file contains information on the variables contained in those datasets.
+
+To start using the Gaia Catalog see the article [**Getting Started with Gaia**](get-started.html).
\ No newline at end of file
diff --git a/rmd/gaia-core.Rmd b/rmd/gaia-core.Rmd
index aa953d9b..003acc20 100644
--- a/rmd/gaia-core.Rmd
+++ b/rmd/gaia-core.Rmd
@@ -2,12 +2,23 @@
 title: '<div><img src="ohdsi40x40.png"></img> OHDSI GIS WG</div>'
 output:
    html_document:
-        toc: TRUE
-        toc_depth: 3
-        toc_float:
-          collapsed: false
+        toc: FALSE
 ---
 
 # **GaiaCore**
 
-Documentation: [GaiaCore (R Package)](gaiaCore/index.html)
\ No newline at end of file
+## Description
+
+Gaia Core is the central functionality and storage of Gaia and consists of two main features: a **staging database** and an **execution engine**.
+
+The staging database is a PostGIS database with a replica copy of the Gaia Catalog installed in a schema named "backbone". In this database, public datasets that are registered in Gaia Catalog can be "staged": transformed and then loaded as tables in a standardized Entity-Attribute-Value format. Other geospatial data, such as geocoded addresses, can also be loaded into the staging database for use in conjunction with the staged data.
+
+All operations on the staging database (creating tables, inserting data, accessing data, etc.) are performed through the "execution engine". The execution engine can be any software package (e.g. R package, Python library, CLI) that connects to the database and functionalizes the logic required to write or read data to and from the standard format.
+
+## Scope
+
+The **ultimate vision** of Gaia Core is support for multiple geospatial databases (particularly cloud-native), as well as execution engine interfaces for multiple popular data science programming languages (e.g. Python, Julia, R, Bash). **Currently**, the staging database has only been implemented in PostGIS and the execution engine has only been implemented in R.
+
+## Documentation
+
+[gaiaCore (R Package)](gaiaCore/index.html)
\ No newline at end of file
diff --git a/rmd/gaia-extensions.Rmd b/rmd/gaia-extensions.Rmd
index 678d98e4..0ef92e61 100644
--- a/rmd/gaia-extensions.Rmd
+++ b/rmd/gaia-extensions.Rmd
@@ -2,12 +2,11 @@
 title: '<div><img src="ohdsi40x40.png"></img> OHDSI GIS WG</div>'
 output:
    html_document:
-        toc: TRUE
-        toc_depth: 3
-        toc_float:
-          collapsed: false
+        toc: FALSE
 ---
 
 # **Gaia Extensions**
 
-## Overview
\ No newline at end of file
+## Description
+
+Any functionality that falls outside of Gaia Core's scope (basic Create, Read, Update and Delete operations) can be encapsulated in an Extension. An extension can be thought of as a software package or library that interfaces with Gaia Core (through the execution engine) that collects similar functionality. Extensions can be grouped by the communities they serve or by the functionality they provide. For example, the gaiaOHDSI extension is built to provide members of the OHDSI community useful connectors between Gaia Core and an OMOP database and various OHDSI tools. On the other hand, general (hypothetical) extensions like gaiaVis or gaiaLayer provide visualization and layer building software to Gaia Core, respectively.
\ No newline at end of file
diff --git a/rmd/images/framework_overview.png b/rmd/images/framework_overview.png
new file mode 100644
index 00000000..13984dae
Binary files /dev/null and b/rmd/images/framework_overview.png differ