diff --git a/card-functionality/src/cards.rs b/card-functionality/src/cards.rs
index 64e90a8..4477488 100644
--- a/card-functionality/src/cards.rs
+++ b/card-functionality/src/cards.rs
@@ -101,7 +101,7 @@ impl TestCard {
                     let mut ca = CardApp::from(card_client);
 
                     // Set Card Capabilities (chaining, command length, ..)
-                    let ard = ca.get_app_data()?;
+                    let ard = ca.get_application_related_data()?;
                     let app_id = ard.get_application_id()?;
 
                     if app_id.ident().as_str() == ident {
@@ -120,7 +120,7 @@ impl TestCard {
                 let mut ca = CardApp::from(card_client);
 
                 // Set Card Capabilities (chaining, command length, ..)
-                let ard = ca.get_app_data()?;
+                let ard = ca.get_application_related_data()?;
                 ca.init_caps(&ard)?;
 
                 // println!("opened scdc card {}", serial);
diff --git a/card-functionality/src/tests.rs b/card-functionality/src/tests.rs
index 7c89d21..9e3475a 100644
--- a/card-functionality/src/tests.rs
+++ b/card-functionality/src/tests.rs
@@ -96,7 +96,7 @@ fn check_key_upload_metadata(
     ca: &mut CardApp,
     meta: &[(String, KeyGenerationTime)],
 ) -> Result<()> {
-    let ard = ca.get_app_data()?;
+    let ard = ca.get_application_related_data()?;
 
     // check fingerprints
     let card_fp = ard.get_fingerprints()?;
@@ -140,7 +140,7 @@ pub fn test_print_caps(
     ca: &mut CardApp,
     _param: &[&str],
 ) -> Result<TestOutput, TestError> {
-    let ard = ca.get_app_data()?;
+    let ard = ca.get_application_related_data()?;
 
     let aid = ard.get_application_id()?;
     println!("aid: {:#x?}", aid);
@@ -161,7 +161,7 @@ pub fn test_print_algo_info(
     ca: &mut CardApp,
     _param: &[&str],
 ) -> Result<TestOutput, TestError> {
-    let ard = ca.get_app_data()?;
+    let ard = ca.get_application_related_data()?;
 
     let dec = ard.get_algorithm_attributes(KeyType::Decryption)?;
     println!("Current algorithm for the decrypt slot: {}", dec);
@@ -250,7 +250,7 @@ pub fn test_get_pub(
     ca: &mut CardApp,
     _param: &[&str],
 ) -> Result<TestOutput, TestError> {
-    let ard = ca.get_app_data()?;
+    let ard = ca.get_application_related_data()?;
     let key_gen = ard.get_key_generation_times()?;
 
     // --
@@ -442,7 +442,7 @@ pub fn test_pw_status(
 ) -> Result<TestOutput, TestError> {
     let mut out = vec![];
 
-    let ard = ca.get_app_data()?;
+    let ard = ca.get_application_related_data()?;
     let mut pws = ard.get_pw_status_bytes()?;
 
     println!("pws {:?}", pws);
@@ -454,7 +454,7 @@ pub fn test_pw_status(
 
     ca.set_pw_status_bytes(&pws, false)?;
 
-    let ard = ca.get_app_data()?;
+    let ard = ca.get_application_related_data()?;
     let pws = ard.get_pw_status_bytes()?;
     println!("pws {:?}", pws);
 
@@ -536,7 +536,7 @@ pub fn run_test(
     param: &[&str],
 ) -> Result<TestOutput, TestError> {
     let mut ca = card.get_card_app()?;
-    let ard = ca.get_app_data()?;
+    let ard = ca.get_application_related_data()?;
     let _app_id = ard.get_application_id()?;
 
     t(&mut ca, param)
diff --git a/openpgp-card-sequoia/src/decryptor.rs b/openpgp-card-sequoia/src/decryptor.rs
index 61cd65e..90a6176 100644
--- a/openpgp-card-sequoia/src/decryptor.rs
+++ b/openpgp-card-sequoia/src/decryptor.rs
@@ -39,7 +39,7 @@ impl<'a> CardDecryptor<'a> {
         policy: &dyn Policy,
     ) -> Result<CardDecryptor<'a>, Error> {
         // Get the fingerprint for the decryption key from the card.
-        let ard = ca.get_app_data()?;
+        let ard = ca.get_application_related_data()?;
         let fps = ard.get_fingerprints()?;
         let fp = fps.decryption();
 
diff --git a/openpgp-card-sequoia/src/lib.rs b/openpgp-card-sequoia/src/lib.rs
index cb3c167..4a5196f 100644
--- a/openpgp-card-sequoia/src/lib.rs
+++ b/openpgp-card-sequoia/src/lib.rs
@@ -583,7 +583,7 @@ impl CardBase {
         // read and cache "application related data"
         let mut card_app = CardApp::from(ccb);
 
-        let ard = card_app.get_app_data()?;
+        let ard = card_app.get_application_related_data()?;
 
         card_app.init_caps(&ard)?;
 
@@ -597,7 +597,7 @@ impl CardBase {
     /// This is done once, after opening the OpenPGP card applet
     /// (the data is stored in the OpenPGPCard object).
     fn get_app_data(&mut self) -> Result<ApplicationRelatedData> {
-        self.card_app.get_app_data()
+        self.card_app.get_application_related_data()
     }
 
     pub fn get_application_id(&self) -> Result<ApplicationIdentifier, Error> {
diff --git a/openpgp-card-sequoia/src/main.rs b/openpgp-card-sequoia/src/main.rs
index 6f4a3e8..4a633ca 100644
--- a/openpgp-card-sequoia/src/main.rs
+++ b/openpgp-card-sequoia/src/main.rs
@@ -242,7 +242,7 @@ fn main() -> Result<(), Box<dyn Error>> {
         for c in cards {
             let mut ca = CardApp::from(c);
 
-            let ard = ca.get_app_data()?;
+            let ard = ca.get_application_related_data()?;
             let app_id = ard.get_application_id()?;
 
             let ident = app_id.ident();
diff --git a/openpgp-card-sequoia/src/signer.rs b/openpgp-card-sequoia/src/signer.rs
index 6e249f3..34f52d5 100644
--- a/openpgp-card-sequoia/src/signer.rs
+++ b/openpgp-card-sequoia/src/signer.rs
@@ -34,7 +34,7 @@ impl<'a> CardSigner<'a> {
         policy: &dyn Policy,
     ) -> Result<CardSigner<'a>, Error> {
         // Get the fingerprint for the signing key from the card.
-        let ard = ca.get_app_data()?;
+        let ard = ca.get_application_related_data()?;
         let fps = ard.get_fingerprints()?;
         let fp = fps.signature();
 
diff --git a/openpgp-card/src/card_app.rs b/openpgp-card/src/card_app.rs
index 44b6c30..f8f519c 100644
--- a/openpgp-card/src/card_app.rs
+++ b/openpgp-card/src/card_app.rs
@@ -105,7 +105,9 @@ impl CardApp {
     /// (This data should probably be cached in a higher layer. Some parts of
     /// it are needed regularly, and it does not usually change during
     /// normal use of a card.)
-    pub fn get_app_data(&mut self) -> Result<ApplicationRelatedData> {
+    pub fn get_application_related_data(
+        &mut self,
+    ) -> Result<ApplicationRelatedData> {
         let ad = commands::get_application_data();
         let resp = apdu::send_command(&mut self.card_client, ad, true)?;
         let value = Value::from(resp.data()?, true)?;
@@ -577,7 +579,7 @@ impl CardApp {
         algo: &Algo,
     ) -> Result<Response, Error> {
         // FIXME: caching?
-        let ard = self.get_app_data()?;
+        let ard = self.get_application_related_data()?;
 
         // FIXME: Only write algo attributes to the card if "extended
         // capabilities" show that they are changeable!
diff --git a/openpgp-card/src/keys.rs b/openpgp-card/src/keys.rs
index 2bdb4bc..55fcf55 100644
--- a/openpgp-card/src/keys.rs
+++ b/openpgp-card/src/keys.rs
@@ -46,7 +46,7 @@ pub(crate) fn gen_key_with_metadata(
     }
 
     // algo
-    let ard = card_app.get_app_data()?; // no caching, here!
+    let ard = card_app.get_application_related_data()?; // no caching, here!
     let algo = ard.get_algorithm_attributes(key_type)?;
 
     // generate key
@@ -137,7 +137,7 @@ pub(crate) fn get_pub_key(
     key_type: KeyType,
 ) -> Result<PublicKeyMaterial, Error> {
     // algo
-    let ard = card_app.get_app_data()?; // FIXME: caching
+    let ard = card_app.get_application_related_data()?; // FIXME: caching
     let algo = ard.get_algorithm_attributes(key_type)?;
 
     // get public key
@@ -181,7 +181,7 @@ pub(crate) fn key_import(
                 // No -> Get the current algorithm attributes for key_type.
 
                 // FIXME: caching?
-                let ard = card_app.get_app_data()?;
+                let ard = card_app.get_application_related_data()?;
                 let algo = ard.get_algorithm_attributes(key_type)?;
 
                 // Is the algorithm on the card currently set to RSA?
diff --git a/pcsc/src/lib.rs b/pcsc/src/lib.rs
index 9caae04..9e31c07 100644
--- a/pcsc/src/lib.rs
+++ b/pcsc/src/lib.rs
@@ -128,7 +128,7 @@ impl PcscClient {
         mut ca: CardApp,
         ident: &str,
     ) -> Result<Option<CardClientBox>, Error> {
-        let ard = ca.get_app_data()?;
+        let ard = ca.get_application_related_data()?;
         let aid = ard.get_application_id()?;
 
         if aid.ident() == ident {