task-063: adds extensions to req-016

1 files changed, 23 insertions, 1 deletions

diff --git a/requirements/catalogue/req-016.md b/requirements/catalogue/req-016.md
index de8f060..a0771f6 100644
--- a/requirements/catalogue/req-016.md
+++ b/requirements/catalogue/req-016.md
@@ -7,7 +7,7 @@ as a beer transaction.
 
 Source: req-010
 
-Satisfied by: ass-000, ass-014, req-052
+Satisfied by: ass-000, ass-014, req-052, ass-025, req-118, req-048, req-123
 
 Related to: req-080
 
@@ -18,3 +18,25 @@ Trigger: the user buys a beer.
 1. Wait until the user next regularly opens Schist on their desktop computer.
 2. The user gets their bank transactions and stores them in a CSV file.
 3. The user imports the CSV file into Schist.
+
+### Extensions
+
+#### The import misses a transaction
+
+If the import misses out a transaction, this will be obvious the next time the
+user reconciles their accounts. Then the user can look again in their bank's
+records to track down the error and insert the missing transaction.
+
+#### The import duplicates a transaction
+
+If the import duplicates a transaction, this will be obvious the next time the
+user reconciles their accounts. Then the user can look again in their bank's
+records to track down the error and delete the duplicate transaction.
+
+#### The import gets the columns wrong
+
+If the import mis-matches the columns, for example, inserting the counterparty
+into the description column, then the user can decide whether the error is
+critical. If they judge it not to be critical, they can leave it as it is. If
+they judge it to be critical, they can instead undo the import. Also, they can
+update or delete the erroneous transactions.