diff --git a/year4/semester1/CT417/materials/WK06: Software Architecture/01. WK06_SWArchitecture.pdf b/year4/semester1/CT417/materials/WK06: Software Architecture/01. WK06_SWArchitecture.pdf
new file mode 100644
index 00000000..40fc1e03
Binary files /dev/null and b/year4/semester1/CT417/materials/WK06: Software Architecture/01. WK06_SWArchitecture.pdf differ
diff --git a/year4/semester1/CT417/materials/WK06: Software Architecture/02. API-First_Design.pdf b/year4/semester1/CT417/materials/WK06: Software Architecture/02. API-First_Design.pdf
new file mode 100644
index 00000000..d0c4e26e
Binary files /dev/null and b/year4/semester1/CT417/materials/WK06: Software Architecture/02. API-First_Design.pdf differ
diff --git a/year4/semester1/CT417/materials/WK06: Software Architecture/03. OpenAPI_and_Swagger.pdf b/year4/semester1/CT417/materials/WK06: Software Architecture/03. OpenAPI_and_Swagger.pdf
new file mode 100644
index 00000000..90ecb74d
Binary files /dev/null and b/year4/semester1/CT417/materials/WK06: Software Architecture/03. OpenAPI_and_Swagger.pdf differ
diff --git a/year4/semester1/CT417/materials/WK06: Software Architecture/04. Building_Your_1st_Microservices.pdf b/year4/semester1/CT417/materials/WK06: Software Architecture/04. Building_Your_1st_Microservices.pdf
new file mode 100644
index 00000000..dcbdb679
Binary files /dev/null and b/year4/semester1/CT417/materials/WK06: Software Architecture/04. Building_Your_1st_Microservices.pdf differ