diff --git a/doc/dbus/bus/org.opensuse.Agama.Software1.bus.xml b/doc/dbus/bus/org.opensuse.Agama.Software1.bus.xml
index 9e5a062653..82970322e0 100644
--- a/doc/dbus/bus/org.opensuse.Agama.Software1.bus.xml
+++ b/doc/dbus/bus/org.opensuse.Agama.Software1.bus.xml
@@ -31,9 +31,9 @@
     <method name="SelectProduct">
       <arg name="ProductID" direction="in" type="s"/>
     </method>
-    <method name="ProvisionSelected">
-      <arg name="Provision" direction="in" type="s"/>
-      <arg name="Result" direction="out" type="b"/>
+    <method name="ListPatterns">
+      <arg name="Filtered" direction="in" type="b"/>
+      <arg name="Result" direction="out" type="a{s(ssssi)}"/>
     </method>
     <method name="ProvisionsSelected">
       <arg name="Provisions" direction="in" type="as"/>
diff --git a/doc/dbus/bus/org.opensuse.Agama1.Locale.bus.xml b/doc/dbus/bus/org.opensuse.Agama1.Locale.bus.xml
index 21c5c665d7..38416bd6bc 100644
--- a/doc/dbus/bus/org.opensuse.Agama1.Locale.bus.xml
+++ b/doc/dbus/bus/org.opensuse.Agama1.Locale.bus.xml
@@ -44,6 +44,20 @@
     <method name="LabelsForLocales">
       <arg type="a((ss)(ss))" direction="out"/>
     </method>
+    <!--
+     Gets list of locales available on system.
+
+     # Examples
+
+     ```
+       use agama_dbus_server::locale::Locale;
+       let locale = Locale::new();
+       assert!(locale.list_ui_locales().unwrap().len() > 0);
+     ```
+     -->
+    <method name="ListUILocales">
+      <arg type="as" direction="out"/>
+    </method>
     <method name="ListVConsoleKeyboards">
       <arg type="as" direction="out"/>
     </method>
@@ -56,6 +70,7 @@
     <property name="Locales" type="as" access="readwrite"/>
     <property name="SupportedLocales" type="as" access="readwrite"/>
     <property name="Timezone" type="s" access="readwrite"/>
+    <property name="UILocale" type="s" access="readwrite"/>
     <property name="VConsoleKeyboard" type="s" access="readwrite"/>
   </interface>
 </node>
diff --git a/doc/dbus/org.opensuse.Agama.Software1.bus.xml b/doc/dbus/org.opensuse.Agama.Software1.bus.xml
new file mode 100644
index 0000000000..cd7eb6c4f6
--- /dev/null
+++ b/doc/dbus/org.opensuse.Agama.Software1.bus.xml
@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<node name="/org/opensuse/Agama/Software1">
+  <node name="Proposal"/>
+  <interface name="org.freedesktop.DBus.Introspectable">
+    <method name="Introspect">
+      <arg name="xml_data" direction="out" type="s"/>
+    </method>
+  </interface>
+  <interface name="org.freedesktop.DBus.Properties">
+    <method name="Get">
+      <arg name="interface_name" direction="in" type="s"/>
+      <arg name="property_name" direction="in" type="s"/>
+      <arg name="value" direction="out" type="v"/>
+    </method>
+    <method name="Set">
+      <arg name="interface_name" direction="in" type="s"/>
+      <arg name="property_name" direction="in" type="s"/>
+      <arg name="val" direction="in" type="v"/>
+    </method>
+    <method name="GetAll">
+      <arg name="interface_name" direction="in" type="s"/>
+      <arg name="value" direction="out" type="a{sv}"/>
+    </method>
+    <signal name="PropertiesChanged">
+      <arg name="interface" type="s"/>
+      <arg name="changed_properties" type="a{sv}"/>
+      <arg name="invalidated_properties" type="as"/>
+    </signal>
+  </interface>
+  <interface name="org.opensuse.Agama.Software1">
+    <!--
+      SelectProduct:
+      @ProductID: product identifier
+
+      Select product for Installation.
+    -->
+    <method name="SelectProduct">
+      <arg name="ProductID" direction="in" type="s"/>
+    </method>
+    <!--
+      ListPatterns:
+      @Filtered: Flag if result should contain only filtered patterns for user.
+                 Decision about criteria is on backend.
+      @Result:   map with pattern id as key and as value is struct with
+                 category, description, icon, summary and order for pattern
+
+      List available patterns.
+    -->
+    <method name="ListPatterns">
+      <arg name="Filtered" direction="in" type="b"/>
+      <arg name="Result" direction="out" type="a{s(ssssi)}"/>
+    </method>
+    <method name="ProvisionsSelected">
+      <arg name="Provisions" direction="in" type="as"/>
+      <arg name="Result" direction="out" type="ab"/>
+    </method>
+    <method name="IsPackageInstalled">
+      <arg name="Name" direction="in" type="s"/>
+      <arg name="Result" direction="out" type="b"/>
+    </method>
+    <method name="UsedDiskSpace">
+      <arg name="SpaceSize" direction="out" type="s"/>
+    </method>
+    <method name="Probe">
+    </method>
+    <method name="Propose">
+    </method>
+    <method name="Install">
+    </method>
+    <method name="Finish">
+    </method>
+    <!--
+     property that defines list of available base products.
+     It is id of product, human readable name and dict for future extensions
+     It is ordered by display priority
+     -->
+    <property type="a(ssa{sv})" name="AvailableBaseProducts" access="read"/>
+    <!--
+     property that shows which base product was selected
+     -->
+    <property type="s" name="SelectedBaseProduct" access="read"/>
+  </interface>
+  <interface name="org.opensuse.Agama1.Progress">
+    <property type="u" name="TotalSteps" access="read"/>
+    <property type="(us)" name="CurrentStep" access="read"/>
+    <property type="b" name="Finished" access="read"/>
+  </interface>
+  <interface name="org.opensuse.Agama1.ServiceStatus">
+    <property type="aa{sv}" name="All" access="read"/>
+    <property type="u" name="Current" access="read"/>
+  </interface>
+  <interface name="org.opensuse.Agama1.Validation">
+    <property type="as" name="Errors" access="read"/>
+    <property type="b" name="Valid" access="read"/>
+  </interface>
+</node>
diff --git a/doc/dbus/org.opensuse.Agama1.Locale.doc.xml b/doc/dbus/org.opensuse.Agama1.Locale.doc.xml
index a01daffc3c..8844528be1 100644
--- a/doc/dbus/org.opensuse.Agama1.Locale.doc.xml
+++ b/doc/dbus/org.opensuse.Agama1.Locale.doc.xml
@@ -19,6 +19,12 @@
     <method name="LabelsForLocales">
       <arg type="a((ss)(ss))" direction="out"/>
     </method>
+    <!--
+     Gets list of locales available on system.
+     -->
+    <method name="ListUILocales">
+      <arg type="as" direction="out"/>
+    </method>
     <method name="ListVConsoleKeyboards">
       <arg type="as" direction="out"/>
     </method>
@@ -31,6 +37,10 @@
     <property name="Locales" type="as" access="readwrite"/>
     <property name="SupportedLocales" type="as" access="readwrite"/>
     <property name="Timezone" type="s" access="readwrite"/>
+    <!--
+     Property that controls in which localization human string from backend will come.
+     -->
+    <property name="UILocale" type="s" access="readwrite"/>
     <property name="VConsoleKeyboard" type="s" access="readwrite"/>
   </interface>
 </node>
diff --git a/doc/dbus_api.md b/doc/dbus_api.md
index fe036e3a62..807c83f24c 100644
--- a/doc/dbus_api.md
+++ b/doc/dbus_api.md
@@ -55,34 +55,10 @@ See the new-style [reference][lang-ref] ([source][lang-src]).
 
 Iface: o.o.Agama.Software1
 
-#### methods:
-
--   SelectProduct(string ProductId) -> void
-    Select product for installation.
-    TODO: do we need version or arch or any other parameter? should we add generic dict(sv) to it?
-    Example:
-
-      InstallProduct("SLES") -> () # only name from available BaseProducts is supported
-
-#### Properties (all read only):
-
--  AvailableBaseProducts -> array(struct(string ProductId, string ProductLabel, dict(string, variant) details))
-    List of all available base product to install on target system.
-    Note: List is sorted according to defined display order
-    Example:
-
-      AvailableBaseProducts -> [["SLES", "SUSE Linux Enterprise Server", {}]] # it is product name, human readable name and dict for future extensions to provide more data
-
--  SelectedBaseProduct -> string ProductId
-    Base product selected for installation. It is always defined.
-    Example:
-
-      SelectedBaseProduct -> "SLES" # only name from available BaseProducts is supported
-
-#### Signals:
-
--  PropertiesChanged ( only standard one from org.freedesktop.DBus.Properties interface )
+See the new-style [reference][lang-ref] ([source][lang-src]).
 
+[lang-ref]: https://opensuse.github.io/agama/dbus/ref-org.opensuse.Agama.Software1.html
+[lang-src]: dbus/org.opensuse.Agama.Software1.doc.xml
 
 ## `org.opensuse.Agama.Storage1` Service
 
diff --git a/rust/agama-lib/src/software/proxies.rs b/rust/agama-lib/src/software/proxies.rs
index e76907008c..8803fce495 100644
--- a/rust/agama-lib/src/software/proxies.rs
+++ b/rust/agama-lib/src/software/proxies.rs
@@ -24,9 +24,6 @@ trait Software1 {
     /// Propose method
     fn propose(&self) -> zbus::Result<()>;
 
-    /// ProvisionSelected method
-    fn provision_selected(&self, provision: &str) -> zbus::Result<bool>;
-
     /// ProvisionsSelected method
     fn provisions_selected(&self, provisions: &[&str]) -> zbus::Result<Vec<bool>>;
 
diff --git a/service/lib/agama/dbus/clients/software.rb b/service/lib/agama/dbus/clients/software.rb
index 194a84a977..8b953d705d 100644
--- a/service/lib/agama/dbus/clients/software.rb
+++ b/service/lib/agama/dbus/clients/software.rb
@@ -102,15 +102,6 @@ def finish
           dbus_object.Finish
         end
 
-        # Determine whether the given tag are provided by the selected packages
-        #
-        # @param tag [String] Tag to search for (package names, requires/provides, or file
-        #   names)
-        # @return [Boolean] true if it is provided; false otherwise
-        def provision_selected?(tag)
-          dbus_object.ProvisionSelected(tag)
-        end
-
         # Determine whether the given tags are provided by the selected packages
         #
         # @param tags [Array<String>] Tags to search for (package names, requires/provides, or file
diff --git a/service/lib/agama/dbus/software/manager.rb b/service/lib/agama/dbus/software/manager.rb
index acabf7c7d6..edb08962bd 100644
--- a/service/lib/agama/dbus/software/manager.rb
+++ b/service/lib/agama/dbus/software/manager.rb
@@ -75,9 +75,20 @@ def initialize(backend, logger)
             update_validation # as different product means different software selection
           end
 
-          # TODO: just for performance comparison (see `perf.rb`)
-          dbus_method :ProvisionSelected, "in Provision:s, out Result:b" do |provision|
-            backend.provision_selected?(provision)
+          # value of result hash is category, description, icon, summary and order
+          dbus_method :ListPatterns, "in Filtered:b, out Result:a{s(ssssi)}" do |filtered|
+            [
+              backend.patterns(filtered).each_with_object({}) do |pattern, result|
+                value = [
+                  pattern.category,
+                  pattern.description,
+                  pattern.icon,
+                  pattern.summary,
+                  pattern.order.to_i
+                ]
+                result[pattern.name] = value
+              end
+            ]
           end
 
           dbus_method :ProvisionsSelected, "in Provisions:as, out Result:ab" do |provisions|
diff --git a/service/lib/agama/software/manager.rb b/service/lib/agama/software/manager.rb
index 84e17e2e9e..4152e3bfaf 100644
--- a/service/lib/agama/software/manager.rb
+++ b/service/lib/agama/software/manager.rb
@@ -26,6 +26,7 @@
 require "agama/with_progress"
 require "agama/validation_error"
 require "y2packager/product"
+require "y2packager/resolvable"
 require "yast2/arch_filter"
 require "agama/software/callbacks"
 require "agama/software/proposal"
@@ -177,6 +178,18 @@ def provision_selected?(tag)
         Yast::Pkg.IsSelected(tag) || Yast::Pkg.IsProvided(tag)
       end
 
+      # Enlist available patterns
+      #
+      # @param filtered [Boolean] If list of patterns should be filtered.
+      #                           Filtering criteria can change.
+      # @return [Array<Y2Packager::Resolvable>]
+      def patterns(filtered)
+        patterns = Y2Packager::Resolvable.find(kind: :pattern)
+        patterns = patterns.select(&:user_visible) if filtered
+
+        patterns
+      end
+
       # Determines whether a package is installed
       #
       # @param name [String] Package name
diff --git a/service/perf.rb b/service/perf.rb
deleted file mode 100644
index 2974a36d3d..0000000000
--- a/service/perf.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-# frozen_string_literal: true
-
-require "benchmark"
-
-$LOAD_PATH << File.expand_path("lib", __dir__)
-
-require "agama/dbus/clients/software"
-
-PACKAGES = ["autologin-support", "kdm", "gdm", "sddm", "lightdm"].freeze
-
-CLIENT = Agama::DBus::Clients::Software.new
-# warm up call
-CLIENT.provisions_selected?(PACKAGES)
-
-RUNS = 100
-
-Benchmark.bm(15) do |x|
-  x.report("ask multi:") { RUNS.times { PACKAGES.each { |p| CLIENT.provision_selected?(p) } } }
-  x.report("single call:") { RUNS.times { CLIENT.provisions_selected?(PACKAGES) } }
-end