diff --git a/docs/userdocs/SAMRAI-Concepts_SoftwareDesign.docx b/docs/userdocs/SAMRAI-Concepts_SoftwareDesign.docx
new file mode 100644
index 0000000000..f052fb2efe
Binary files /dev/null and b/docs/userdocs/SAMRAI-Concepts_SoftwareDesign.docx differ