diff --git a/html/business01.html b/html/business01.html
index e4112c5..3297955 100644
--- a/html/business01.html
+++ b/html/business01.html
@@ -224,9 +224,9 @@
           </div>
           <div class="example-box">
             <ul class="example-box-img animated fadeIn" >
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
+              <li><img src="images/case01-1.png"></li>
+              <li><img src="images/case01-2.png"></li>
+              <li><img src="images/case01-3.png"></li>
             </ul>
           </div>
           <div class="example-box bg-gray">
@@ -252,9 +252,9 @@
           </div>
           <div class="example-box" data-aos="fade-in" data-aos-duration="1000">
             <ul class="example-box-img" >
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
+              <li><img src="images/case02-1.png"></li>
+              <li><img src="images/case02-2.png"></li>
+              <li><img src="images/case02-3.png"></li>
             </ul>
           </div>
           <div class="example-box bg-gray">
@@ -280,9 +280,9 @@
           </div>
           <div class="example-box" data-aos="fade-in" data-aos-duration="1000">
             <ul class="example-box-img" >
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
+              <li><img src="images/case03-1.png"></li>
+              <li><img src="images/case03-2.png"></li>
+              <li><img src="images/case03-3.png"></li>
             </ul>
           </div>
           <div class="example-box bg-gray">
@@ -301,34 +301,6 @@
             </div>
           </div>
         </div>
-        <div class="example-info">
-          <div class="example-box-ti">
-            <h6 class="" data-aos="fade-in" data-aos-duration="1000">하이에어 항공운항 시스템 구축</h6>
-            <span class="line"></span>
-          </div>
-          <div class="example-box" data-aos="fade-in" data-aos-duration="1000">
-            <ul class="example-box-img" >
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
-            </ul>
-          </div>
-          <div class="example-box bg-gray">
-            <div class="sub-inner">
-              <h6 data-aos="fade-in" data-aos-duration="1000">주요기능</h6>
-              <ul class="example-box-txt" data-aos="fade-up" data-aos-duration="1000">
-                <li><span>예약/발권</span></li>
-                <li><span>환불/취소</span></li>
-                <li><span>결제/회원관리</span></li>
-                <li><span>통계</span></li>
-                <li><span>Weight & Balance</span></li>
-                <li><span>Check-in 정보 전송</span></li>
-                <li><span>여정/운임 조회</span></li>
-                <li><span>안전 위험/교육 훈련</span></li>
-              </ul>
-            </div>
-          </div>
-        </div>
         <div class="example-info">
           <div class="example-box-ti">
             <h6 class="" data-aos="fade-in" data-aos-duration="1000">현대자동차 출입인증 시스템 구축</h6>
@@ -336,9 +308,9 @@
           </div>
           <div class="example-box" data-aos="fade-in" data-aos-duration="1000">
             <ul class="example-box-img" >
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
+              <li><img src="images/case04-1.png"></li>
+              <li><img src="images/case04-2.png"></li>
+              <li><img src="images/case04-3.png"></li>
             </ul>
           </div>
           <div class="example-box bg-gray">
diff --git a/html/business02.html b/html/business02.html
index 7561921..3c28991 100644
--- a/html/business02.html
+++ b/html/business02.html
@@ -143,7 +143,7 @@
                 </p>
               </div>
               <div class="img" data-aos="fade-right" data-aos-duration="1000">
-                <img src="images/solution01.png">
+                <img src="images/rnd04.png">
               </div>
            </div>
         </div>
@@ -162,7 +162,7 @@
                 </ul>
               </div>
               <div class="img" data-aos="fade-left" data-aos-duration="1000">
-                <img src="images/solution01.png">
+                <img src="images/rnd05.png">
               </div>
            </div>
         </div>
@@ -179,7 +179,7 @@
                 </p>
               </div>
               <div class="img" data-aos="fade-right" data-aos-duration="1000">
-                <img src="images/solution01.png">
+                <img src="images/rnd06.png">
               </div>
            </div>
         </div>
@@ -192,9 +192,9 @@
           </div>
           <div class="example-box">
             <ul class="example-box-img animated fadeIn" >
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
+              <li><img src="images/rndcase01-1.png"></li>
+              <li><img src="images/rndcase01-2.png"></li>
+              <li><img src="images/rndcase01-3.png"></li>
             </ul>
           </div>
           <div class="example-box bg-gray">
@@ -220,9 +220,9 @@
           </div>
           <div class="example-box" data-aos="fade-in" data-aos-duration="1000">
             <ul class="example-box-img" >
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
+              <li><img src="images/rndcase02-1.png"></li>
+              <li><img src="images/rndcase02-2.png"></li>
+              <li><img src="images/rndcase02-3.png"></li>
             </ul>
           </div>
           <div class="example-box bg-gray">
@@ -248,9 +248,9 @@
           </div>
           <div class="example-box" data-aos="fade-in" data-aos-duration="1000">
             <ul class="example-box-img" >
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
-              <li><img src="images/solution01.png"></li>
+              <li><img src="images/rndcase03-1.png"></li>
+              <li><img src="images/rndcase03-2.png"></li>
+              <li><img src="images/rndcase03-3.png"></li>
             </ul>
           </div>
           <div class="example-box bg-gray">
diff --git a/html/images/case01-1.png b/html/images/case01-1.png
new file mode 100644
index 0000000..7d7689a
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diff --git a/html/images/case01-2.png b/html/images/case01-2.png
new file mode 100644
index 0000000..ddfb71f
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diff --git a/html/images/case01-3.png b/html/images/case01-3.png
new file mode 100644
index 0000000..87bb7c6
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diff --git a/html/images/case02-1.png b/html/images/case02-1.png
new file mode 100644
index 0000000..79d5f76
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diff --git a/html/images/case02-2.png b/html/images/case02-2.png
new file mode 100644
index 0000000..1829636
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diff --git a/html/images/case02-3.png b/html/images/case02-3.png
new file mode 100644
index 0000000..d97c8cd
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diff --git a/html/images/case03-1.png b/html/images/case03-1.png
new file mode 100644
index 0000000..09bf7ed
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diff --git a/html/images/case03-2.png b/html/images/case03-2.png
new file mode 100644
index 0000000..fa33868
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diff --git a/html/images/case03-3.png b/html/images/case03-3.png
new file mode 100644
index 0000000..54d8129
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diff --git a/html/images/case04-1.png b/html/images/case04-1.png
new file mode 100644
index 0000000..e202245
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diff --git a/html/images/case04-2.png b/html/images/case04-2.png
new file mode 100644
index 0000000..975fc9c
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diff --git a/html/images/case04-3.png b/html/images/case04-3.png
new file mode 100644
index 0000000..3415f35
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diff --git a/html/images/rnd04.png b/html/images/rnd04.png
new file mode 100644
index 0000000..53dde51
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diff --git a/html/images/rnd05.png b/html/images/rnd05.png
new file mode 100644
index 0000000..c38b6bc
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diff --git a/html/images/rnd06.png b/html/images/rnd06.png
new file mode 100644
index 0000000..f15eb23
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diff --git a/html/images/rndcase01-1.png b/html/images/rndcase01-1.png
new file mode 100644
index 0000000..f731688
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diff --git a/html/images/rndcase01-2.png b/html/images/rndcase01-2.png
new file mode 100644
index 0000000..d7cb780
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diff --git a/html/images/rndcase01-3.png b/html/images/rndcase01-3.png
new file mode 100644
index 0000000..c98aefe
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diff --git a/html/images/rndcase02-1.png b/html/images/rndcase02-1.png
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index 0000000..e0a584c
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diff --git a/html/images/rndcase02-2.png b/html/images/rndcase02-2.png
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index 0000000..365442b
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diff --git a/html/images/rndcase02-3.png b/html/images/rndcase02-3.png
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index 0000000..9970613
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diff --git a/html/images/rndcase03-1.png b/html/images/rndcase03-1.png
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index 0000000..ea18943
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diff --git a/html/images/rndcase03-2.png b/html/images/rndcase03-2.png
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index 0000000..f1cd778
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index 0000000..1874f33
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