diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..e67c32c
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,123 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_size = 4
+indent_style = space
+max_line_length = 150
+ij_continuation_indent_size = 4
+ij_formatter_off_tag = @formatter:off
+ij_formatter_on_tag = @formatter:on
+ij_formatter_tags_enabled = false
+ij_smart_tabs = false
+ij_wrap_on_typing = false
+ij_any_while_on_new_line = false
+
+[.editorconfig]
+ij_editorconfig_align_group_field_declarations = false
+ij_editorconfig_space_after_colon = false
+ij_editorconfig_space_after_comma = true
+ij_editorconfig_space_before_colon = false
+ij_editorconfig_space_before_comma = false
+ij_editorconfig_spaces_around_assignment_operators = true
+
+[*.{kt,kts}]
+ij_kotlin_align_in_columns_case_branch = false
+ij_kotlin_align_multiline_binary_operation = false
+ij_kotlin_align_multiline_extends_list = false
+ij_kotlin_align_multiline_method_parentheses = false
+ij_kotlin_align_multiline_parameters = false
+ij_kotlin_align_multiline_parameters_in_calls = false
+ij_kotlin_allow_trailing_comma = true
+ij_kotlin_allow_trailing_comma_on_call_site = true
+ij_kotlin_assignment_wrap = normal
+ij_kotlin_blank_lines_after_class_header = 0
+ij_kotlin_blank_lines_around_block_when_branches = 0
+ij_kotlin_blank_lines_before_declaration_with_comment_or_annotation_on_separate_line = 1
+ij_kotlin_block_comment_at_first_column = true
+ij_kotlin_call_parameters_new_line_after_left_paren = true
+ij_kotlin_call_parameters_right_paren_on_new_line = true
+ij_kotlin_call_parameters_wrap = on_every_item
+ij_kotlin_catch_on_new_line = false
+ij_kotlin_class_annotation_wrap = split_into_lines
+ij_kotlin_code_style_defaults = KOTLIN_OFFICIAL
+ij_kotlin_continuation_indent_for_chained_calls = false
+ij_kotlin_continuation_indent_for_expression_bodies = false
+ij_kotlin_continuation_indent_in_argument_lists = false
+ij_kotlin_continuation_indent_in_elvis = false
+ij_kotlin_continuation_indent_in_if_conditions = false
+ij_kotlin_continuation_indent_in_parameter_lists = false
+ij_kotlin_continuation_indent_in_supertype_lists = false
+ij_kotlin_else_on_new_line = false
+ij_kotlin_enum_constants_wrap = off
+ij_kotlin_extends_list_wrap = normal
+ij_kotlin_field_annotation_wrap = split_into_lines
+ij_kotlin_finally_on_new_line = false
+ij_kotlin_if_rparen_on_new_line = true
+ij_kotlin_import_nested_classes = false
+ij_kotlin_insert_whitespaces_in_simple_one_line_method = true
+ij_kotlin_keep_blank_lines_before_right_brace = 0
+ij_kotlin_keep_blank_lines_in_code = 1
+ij_kotlin_keep_blank_lines_in_declarations = 1
+ij_kotlin_keep_first_column_comment = true
+ij_kotlin_keep_indents_on_empty_lines = false
+ij_kotlin_keep_line_breaks = true
+ij_kotlin_lbrace_on_next_line = false
+ij_kotlin_line_comment_add_space = true
+ij_kotlin_line_comment_at_first_column = false
+ij_kotlin_method_annotation_wrap = split_into_lines
+ij_kotlin_method_call_chain_wrap = normal
+ij_kotlin_method_parameters_new_line_after_left_paren = true
+ij_kotlin_method_parameters_right_paren_on_new_line = true
+ij_kotlin_method_parameters_wrap = on_every_item
+ij_kotlin_name_count_to_use_star_import = 2147483647
+ij_kotlin_name_count_to_use_star_import_for_members = 2147483647
+# 자동 static import 설정
+#ij_kotlin_packages_to_use_import_on_demand =
+ij_kotlin_imports_layout = *, kotlin.**, java.**, javax.**, org.**, io.github.chanhyeong.**, ^"
+ij_kotlin_parameter_annotation_wrap = off
+ij_kotlin_space_after_comma = true
+ij_kotlin_space_after_extend_colon = true
+ij_kotlin_space_after_type_colon = true
+ij_kotlin_space_before_catch_parentheses = true
+ij_kotlin_space_before_comma = false
+ij_kotlin_space_before_extend_colon = true
+ij_kotlin_space_before_for_parentheses = true
+ij_kotlin_space_before_if_parentheses = true
+ij_kotlin_space_before_lambda_arrow = true
+ij_kotlin_space_before_type_colon = false
+ij_kotlin_space_before_when_parentheses = true
+ij_kotlin_space_before_while_parentheses = true
+ij_kotlin_spaces_around_additive_operators = true
+ij_kotlin_spaces_around_assignment_operators = true
+ij_kotlin_spaces_around_equality_operators = true
+ij_kotlin_spaces_around_function_type_arrow = true
+ij_kotlin_spaces_around_logical_operators = true
+ij_kotlin_spaces_around_multiplicative_operators = true
+ij_kotlin_spaces_around_range = false
+ij_kotlin_spaces_around_relational_operators = true
+ij_kotlin_spaces_around_unary_operator = false
+ij_kotlin_spaces_around_when_arrow = true
+ij_kotlin_variable_annotation_wrap = off
+ij_kotlin_wrap_elvis_expressions = 1
+ij_kotlin_wrap_expression_body_functions = 1
+ij_kotlin_wrap_first_method_in_call_chain = false
+# noinspection EditorConfigKeyCorrectness
+disabled_rules = import-ordering
+
+[**/sql/*.kt]
+max_line_length = 1000
+
+[*.properties]
+ij_properties_align_group_field_declarations = false
+ij_properties_keep_blank_lines = false
+ij_properties_key_value_delimiter = equals
+ij_properties_spaces_around_key_value_delimiter = false
+
+[{*.yaml, *.yml}]
+indent_size = 2
+ij_yaml_keep_indents_on_empty_lines = false
+ij_yaml_keep_line_breaks = true
diff --git a/docs/CONVENTION.md b/docs/CONVENTION.md
new file mode 100644
index 0000000..b737c5d
--- /dev/null
+++ b/docs/CONVENTION.md
@@ -0,0 +1,39 @@
+# CONVENTION
+
+## 커밋 로그
+
+`[#이슈번호] 수정 내용` 의 형태로 커밋을 작성한다
+
+## IDE 에서 자동으로 convention 을 맞추도록 설정
+
+### 2021 이상의 버전인 경우
+
+![image](https://user-images.githubusercontent.com/10507662/137309837-bb0d5d86-ba4a-413b-8365-a20f8a94b663.png)
+
+`Tools > Actions on Save` 에서 상위 이미지와 같이 설정
+
+### 하위 버전인 경우
+
+![image](https://user-images.githubusercontent.com/10507662/137310119-039d3d45-e9e0-4ee8-9284-0d094c1ac034.png)
+
+`Save Actions` 설치하여 상위 이미지와 같이 설정
+
+## 모듈 및 패키지 구성
+
+- Bounded Context 는 하나의 모듈로 분리한다
+- Aggregate 는 하나의 패키지를 각각 갖는다
+- Bounded Context 간의 통신은 API 등으로 진행한다
+- DDD 의 기본적인 패키지 구조는 사내 툴을 따른다
+  - 하나의 Aggregate 내에 domains, dtos, listeners, repositories
+
+## 기본적인 코딩 컨벤션
+
+kotlin 공식 룰을 따름 - https://kotlinlang.org/docs/coding-conventions.html
+
+## 구성
+
+- Event 는 Spring 에서 제공하는 것으로 사용한다 (`ApplicationEventPublisher`)
+
+## Authentication
+
+user 모듈에서 로그인하고 정보를 쿠키에 담고 그 외 모듈에서 쿠키에 있는 데이터를 user 에 요청하여 사용자 정보를 얻는다
diff --git a/docs/ENVIRONMENT.md b/docs/ENVIRONMENT.md
new file mode 100644
index 0000000..ce2f3ad
--- /dev/null
+++ b/docs/ENVIRONMENT.md
@@ -0,0 +1,12 @@
+# ENVIRONMENT
+
+## Profile 구성
+
+- local
+- test
+- real
+
+## Database
+
+- test: h2
+- local/real: MySQL 등의 RDB (TODO)