new file: background.md

	new file:   tools.md

src/docs/background.md

+---
+title: "Background"
+---
+
+
+## The "Framework" Discussion
+
+In the nuclear and particle physics communities many software frameworks exists.
+They come in all sizes and scopes. 
+It is important to remember why frameworks exist: to solve a problem that is more difficult without the framework. 
+That said, adopting a framework introduces tight coupling in software which makes it inflexible and difficult to maintain.
+Therefore, ***adopting a framework for the sake of using a framework is never a good idea***.
+
+### The "geometry problem"
+
+The detector description framework called `DD4hep`, at its core, is aimed at 
+solving the "geometry problem". The geometry problem relates the detector 
+description used in simulation or experiment and the reconstruction geometry.
+An illustrative example is the following. Give a channel number representing a 
+pixel in a silicon detector, a hit in that channel represents a 3D point with 
+an uncertainty equal to dimensions of the pixel. Constructing the pixel in 
+simulation and providing a robust look of the geometry based on a channel 
+number are very different tasks.
+
+A tool or framework that allows this look up of geometry from channel number is 
+important for flexible use of independent tracking and reconstruction tools. 
+
+### The I
+

src/docs/tools.md

+---
+title: "Software Tools"
+---
+
+
+## The "Framework" Discussion
+
+In the nuclear and particle physics communities many software frameworks exists.
+They come in all sizes and scopes. 
+It is important to remember why frameworks exist: to solve a problem that is more difficult without the framework. 
+That said, adopting a framework introduces tight coupling in software which makes it inflexible and difficult to maintain.
+Therefore, ***adopting a framework for the sake of using a framework is never a good idea***.
+
+### The "geometry problem"
+
+The detector description framework called `DD4hep`, at its core, is aimed at 
+solving the "geometry problem". The geometry problem relates the detector 
+description used in simulation or experiment and the reconstruction geometry.
+An illustrative example is the following. Give a channel number representing a 
+pixel in a silicon detector, a hit in that channel represents a 3D point with 
+an uncertainty equal to dimensions of the pixel. Constructing the pixel in 
+simulation and providing a robust look of the geometry based on a channel 
+number are very different tasks.
+
+A tool or framework that allows this look up of geometry from channel number is 
+important for flexible use of independent tracking and reconstruction tools. 
+
+### The I
+