diff --git a/src/main/java/roomescape/auth/service/AuthService.kt b/src/main/java/roomescape/auth/service/AuthService.kt
index b6ee6e00..59cf0630 100644
--- a/src/main/java/roomescape/auth/service/AuthService.kt
+++ b/src/main/java/roomescape/auth/service/AuthService.kt
@@ -14,7 +14,7 @@ class AuthService(
         private val jwtHandler: JwtHandler
 ) {
     fun login(request: LoginRequest): TokenResponse {
-        val member: MemberEntity = memberService.findMemberByEmailAndPassword(
+        val member: MemberEntity = memberService.findByEmailAndPassword(
                 request.email,
                 request.password
         )
diff --git a/src/main/java/roomescape/member/business/MemberService.kt b/src/main/java/roomescape/member/business/MemberService.kt
index 512f947d..fcb28ee6 100644
--- a/src/main/java/roomescape/member/business/MemberService.kt
+++ b/src/main/java/roomescape/member/business/MemberService.kt
@@ -16,7 +16,7 @@ import roomescape.member.web.toResponse
 class MemberService(
         private val memberRepository: MemberRepository
 ) {
-    fun readAllMembers(): MembersResponse = MembersResponse(
+    fun findAll(): MembersResponse = MembersResponse(
             memberRepository.findAll()
                     .map { it.toResponse() }
                     .toList()
@@ -29,7 +29,7 @@ class MemberService(
                     HttpStatus.BAD_REQUEST
             )
 
-    fun findMemberByEmailAndPassword(email: String, password: String): MemberEntity =
+    fun findByEmailAndPassword(email: String, password: String): MemberEntity =
             memberRepository.findByEmailAndPassword(email, password)
                     ?: throw RoomescapeException(
                             ErrorType.MEMBER_NOT_FOUND,
diff --git a/src/main/java/roomescape/member/docs/MemberAPI.kt b/src/main/java/roomescape/member/docs/MemberAPI.kt
index de8608ca..b69bcef3 100644
--- a/src/main/java/roomescape/member/docs/MemberAPI.kt
+++ b/src/main/java/roomescape/member/docs/MemberAPI.kt
@@ -20,5 +20,5 @@ interface MemberAPI {
                     useReturnTypeSchema = true
             )
     )
-    fun readAllMembers(): ResponseEntity<CommonApiResponse<MembersResponse>>
+    fun findAll(): ResponseEntity<CommonApiResponse<MembersResponse>>
 }
diff --git a/src/main/java/roomescape/member/web/MemberController.kt b/src/main/java/roomescape/member/web/MemberController.kt
index 435ca9d4..0ba7b0bf 100644
--- a/src/main/java/roomescape/member/web/MemberController.kt
+++ b/src/main/java/roomescape/member/web/MemberController.kt
@@ -13,8 +13,8 @@ class MemberController(
 ) : MemberAPI {
 
     @GetMapping("/members")
-    override fun readAllMembers(): ResponseEntity<CommonApiResponse<MembersResponse>> {
-        val response: MembersResponse = memberService.readAllMembers()
+    override fun findAll(): ResponseEntity<CommonApiResponse<MembersResponse>> {
+        val response: MembersResponse = memberService.findAll()
 
         return ResponseEntity.ok(CommonApiResponse(response))
     }
diff --git a/src/main/java/roomescape/reservation/business/ReservationService.kt b/src/main/java/roomescape/reservation/business/ReservationService.kt
index 1047b9c7..6db9c0a6 100644
--- a/src/main/java/roomescape/reservation/business/ReservationService.kt
+++ b/src/main/java/roomescape/reservation/business/ReservationService.kt
@@ -149,7 +149,7 @@ class ReservationService(
             status: ReservationStatus
     ): ReservationEntity {
         val time = reservationTimeService.findTimeById(timeId)
-        val theme = themeService.findThemeById(themeId)
+        val theme = themeService.findById(themeId)
         val member = memberService.findById(memberId)
 
         validateDateAndTime(date, time)
diff --git a/src/test/java/roomescape/reservation/business/ReservationServiteTest.kt b/src/test/java/roomescape/reservation/business/ReservationServiteTest.kt
index c9b2fa6a..fa525e5c 100644
--- a/src/test/java/roomescape/reservation/business/ReservationServiteTest.kt
+++ b/src/test/java/roomescape/reservation/business/ReservationServiteTest.kt
@@ -51,7 +51,7 @@ class ReservationServiteTest : FunSpec({
             } returns false
 
             every {
-                themeService.findThemeById(any())
+                themeService.findById(any())
             } returns mockk()
 
             every {